diodeinc__pcb/CHANGELOG.md

Changelog

Unreleased

Added

• Add --mouse-bite to board-array create to route boards out with perforated tabs instead of V-scores.
• Add --mouse-bite-placement to board-array create to report where breakaway tabs would go on a board.
• Add pcb step export to write a STEP assembly for a KiCad board without kicad-cli.
• Draw text boxes, knockout text and dashed strokes on STEP silkscreen and solder mask.

Changed

• Prefer Board(path=...), retaining layout_path as a compatibility alias and rejecting empty paths. New board templates enable persistent schematics while keeping layout_path for older compilers.
• Speed up schematic connectivity analysis and repair planning with indexed terminal matching and verified batches of local wire cuts.
• Speed up region construction and unions on layers made of many small, locally overlapping features such as silkscreen and solder mask.

Fixed

• Preserve KiCad embedded symbol cache aliases during schematic apply without dangling references or collapsing distinct definitions.
• Avoid redundant explicit net names in imported boards and sheet modules while preserving names that differ from their assigned identifiers.
• Compose IPC-2581 shapes independently with local cutouts and ordered voids, preventing artificial slits and false DFM width violations.
• Wire rotated and mirrored schematic symbol pins at KiCad's physical pin anchors.
• Report and repair missing Zener NotConnected() intent as native KiCad no-connect markers.
• Preserve successful BOM matches when another line needs retrying.
• Fix false missing-output errors after applying schematics.
• Accept one KiCad no-connect marker for stacked intentional-open pins, including hidden pins, while preserving physical pad identities and rejecting connected or cross-page collisions.

Removed

• Remove the unused pcb-elastic and pcb-mechanics crates and pcb-ir analysis meshing left over from the mouse-bite exploration.

0.4.52 - 2026-09-09

Added

• Add pcb publish --check to run release preflight without publishing.
• Add mesh-based elastic support selection with finite-area connections.
• Add analysis-only board-array create --mouse-bite outline eligibility reports.
• Support KiCad 9 schematics, saving edited pages as KiCad 10.
• Add --accuracy-um to set the geometry accuracy for Gerber, IPC-2581, and release output.
• Keep circles and ellipses exact in exports and rendering.
• Add reusable polygon-boundary, attachment clearance, cutter reachability, and break-removal connectivity queries to pcb-ir, with explicit uncertainty and model limitations.
• Add deterministic elastic support selection with explicit compliance limits, conflict constraints, exhaustive proof status, work budgets, and independent full-system response checks.
• Add standalone elastic support analysis with beam and triangular plate elements, explicit stiffness and constraints, and singular-mode diagnostics.
• Add experimental single mouse-bite tab geometry and reproducible straight/curved break coupons to pcb-ir; physical fracture validation remains outstanding.
• Add boundary-following clearance intervals with inward landing checks, preserving substrate geometry and reporting missing obstacle evidence.

Changed

• Allow schematic and BOM consumers to omit the Starlark interpreter bindings.
• Preserve sheet graphics and text annotations when updating KiCad schematics.
• Add constrained region analysis meshes with boundary provenance, validated input accuracy, refinement diagnostics, and robust element-sided barycentric attachments to pcb-ir.
• Group pcb bom rows by selected offer.
• Upgrade bundled symbols to KiCad 10 format.
• Create a starter spec.md when scaffolding a new board repository.

Fixed

• Run ngspice correctly when pcb sim is given a bare filename in the current directory.
• Reconnect all affected nets when schematic repair moves symbols out of a short.
• Refresh stale schematics when workspace symbol files change.
• Fix false DFM width violations at corners.
• Mark standard-library bare test pads and plated test holes as native KiCad test points.
• Mark standard-library fiducial pads as global fiducials in KiCad layouts.
• Preserve curves that continue after a closed subpath during polygon preparation.
• Require experimental tab anchors and witnesses to be resolved interior points of the original regions.
• Reject experimental tab perforations that overlap support or lack resolved clearance from it.
• Preserve exact arc endpoints during curve preparation to avoid numerical zero-length edges in release builds.
• Report malformed SPICE PARAMS: tokens instead of crashing.
• Migrate root-level .zen files in container workspaces.
• Exit non-zero from pcb rectify fix and pcb rectify audit when batch evaluation fails.
• Escape special characters in KiCad Path properties during import.
• Keep simplified geometry within the accuracy limit near sharp spikes.
• Respect in_bom on KiCad extends symbols.
• Import metric-only 0402Metric/0603Metric passives as 01005/0201 packages.

0.4.51 - 2026-09-05

Added

• Expand all nine IPC-informed DFM profiles with Diode baseline checks.
• Warn about soldermask webs below 4 mil in IPC profiles.
• Warn about slot clearance and plated-slot enclosure in standard and IPC profiles.

Fixed

• Avoid supplier API requests during LSP evaluation.
• Keep deleted sheet instances restorable and child schematics loaded.
• Respect physical stackup order in slot cutouts, land links, and DFM checks.
• Preserve hole-to-land links after routing or copper clears.
• Fix IPC-2581 tools test compilation without default features.
• Remove phantom copper on cutout-only layers without hiding drill artwork.
• Fix false hole-clearance exemptions from shared source indices.

0.4.50 - 2026-09-05

Added

• Add prepared signed-distance queries for PCBIR regions and use one boundary index across DFM.

Fixed

• Support opaque service-account client IDs and proper OAuth Basic encoding.
• Allow off-page schematic placement and avoid existing text and graphics.

0.4.49 - 2026-09-04

Added

• Support service-account authentication.

Changed

• Default DFM to standard and consolidate the bundled JLCPCB PDK.

0.4.48 - 2026-09-04

Added

• Open DFM reports with pcb open or pcb dfm --open.

Changed

• Add yellow-green as a supported Led color.
• Remove rgb from the supported Led colors.
• Report the standard PDK's 4 mil soldermask-web threshold as a warning.

Fixed

• Refresh netlist-derived symbol assembly properties during schematic reconciliation.

0.4.47 - 2026-09-03

Changed

• Allow 0.5 mm plated slots (0.6 mm preferred).
• Speed up IPC-2581 DFM geometry checks.

Fixed

• Preserve authored component constraints in release design BOMs while keeping release netlists hydrated.
• Report a sharp copper tip narrower than the minimum width when it stands alone.
• Check netless pads as isolated copper in DFM reports.
• Ignore nested NotConnected() interface members when creating schematic sheet ports.

0.4.46 - 2026-09-02

Changed

• Speed up IPC-2581 assembly analysis by avoiding unrelated copper composition and repeated land scans.

Fixed

• Fix IPC-2581 hole geometry and manufacturing evidence in PCBA assembly reports.

0.4.45 - 2026-09-02

Changed

• Improve generated schematic placement and repair connectivity issues with minimal verified edits instead of regenerating the affected nets.

0.4.44 - 2026-09-02

Added

• Expose drilled holes, termination associations, and explicit via-protection intent in PCBA assembly reports.

Changed

• QR generic is now a solid silkscreen square with a 5mm, 8mm or 10mm side length

Fixed

• Fetch remote tags before pcb publish determines a board version bump.
• Hide Advice-level diagnostics from pcb publish output while preserving warnings and errors.
• Clarified that pcb layout --check validates an existing layout without modifying it; the command now fails when that layout is missing.
• Reject stackups with an odd number of copper layers before generating an invalid KiCad board.
• Resolve domain-based package references with pcb doc --package.

0.4.43 - 2026-09-01

Added

• Add canonical assembly IR and derive component placement data from it.
• Derive physical electrical terminations from exact IPC-2581 pin and padstack identities.
• Add strict profile-based DFM PDK schema v2, executable JLCPCB 1 oz profiles, and metadata-only IPC 1A-3C profiles.
• Add maximum plated-hole aspect-ratio DFM checks and make IPC 1A-3C profiles executable with opinionated partial IPC-informed baselines.
• Add circular drilled-hole-to-unrelated-copper DFM checks and extend the executable IPC 1A-3C partial baselines with opinionated IPC-informed values.
• Add drilled-feature board-edge DFM checks and extend the executable IPC 1A-3C partial baselines with opinionated IPC-informed values.
• Add a deterministic, versioned PCBA assembly report contract over canonical assembly and physical IR.
• Expose PCBA assembly reports as JSON through pcb ipc assembly.
• Preserve external part-library provenance and same-part MPN aliases in IPC-2581 BOM selections.
• Preserve IPC-2581 package geometry and exact board and panel profiles in assembly IR and reports.

Changed

• Speed up DFM width and gap checks.
• Separate DFM profile support, subject selectors, limits, and named conditional cases in PDK schema v2.

Fixed

• Keep IPC-2581 DOCUMENT BOM entries out of CPL exports.
• Prevent sub-resolution boundary backtracking from producing false DFM width findings.

0.4.42 - 2026-09-01

Added

• Preserve IPC-2581 assembly BOM, package, pin, population, and supporting dictionary source facts in pcb-ir imports.

Changed

• Use a device-style PKCE flow for pcb auth login so headless machines can authenticate securely.

0.4.41 - 2026-08-31

Added

• Add self-contained DFM JSON reports with native geometry and PDK source.
• Add WASM APIs for IPC-2581 import, export, and DFM.

Fixed

• Isolate KiCad CLI temp directories so concurrent ODB exports do not collide.
• Reply to unknown LSP requests with JSON-RPC MethodNotFound instead of leaving clients waiting.
• Preserve schematic conversion diagnostics in LSP evaluation.
• Keep the language server running when LSP request or notification parameters are malformed.
• Return JSON-compatible WASM evaluation results with JavaScript numbers and null.
• Include standalone board outlines in Gerber exports.
• Inherit symbol descriptions for non-generic BOM components.
• Require external power IOs to have a net symbol or hierarchical label.
• Complete the E48 and E192 standard value tables used by e48() and e192().
• pcb build --config now rejects unknown root configuration keys.
• PCB commands now exit cleanly when an output pipe closes early.
• JSON configuration inputs preserve signed and unsigned 64-bit integers.
• pcb fmt now exits nonzero when a file fails to parse, read, or write in write, diff, and check modes.
• Keep SPICE example DC measurements after later analyses by storing them in ngspice's constant plot.

0.4.40 - 2026-08-28

Fixed

• Restored the public @stdlib/bom/helpers.zen match_component() helper for user-defined BOM modifiers.

0.4.39 - 2026-08-28

Changed

• Use API-only generic matching with path-independent group caching and House/Extended provenance.
• Add offline dependency resolution and BOM hydration to pcb dfm and pcb lsp.
• Refresh stale or missing BOM matches during LSP evaluation.
• Keep pcb build BOM hydration cache-only.
• Better error handling in launcher.
• Reference designator hints now support custom uppercase component prefixes.

0.4.38 - 2026-08-27

Added

• Add pcb dfm for .zen boards.

Changed

• Send structured pin-header parameters to the BOM matcher.
• Hydrate schematics from cached BOM matches, with online refresh for stale or missing entries.
• Added cross-platform diode:// links that open sandbox layouts in KiCad with live sync and native recovery prompts.
• Place generated schematic net symbols outside full component geometry in deterministic wired staircases, sharing one symbol only across adjacent same-net pins and reserving the routed staircase during component packing.
• The interposer mate constellation is S13: uniform 2×3 blocks with corner mate-detect loops.
• Orient newly generated missing schematic symbols from attached net-symbol pin directions.

Fixed

• Allow pcb apply schematic to connect one logical terminal to multiple physical symbol pins.

0.4.37 - 2026-08-26

Added

• Add the standard DFM PDK with copper layer-count checks.
• pcb apply schematic reconciles a linked KiCad schematic with its design, planning and applying per-issue repairs; builds of linked projects report schematic-equivalence diagnostics.

Changed

• Cache pcb bom matches per line with stale-data fallback.
• Make IPC DFM copper-clearance checks net-aware.
• Preserve selected BOM offer identities and datasheet URLs in PCB BOM results.

0.4.36 - 2026-08-25

Added

• Added pcb ipc interposer --ipc to export the finished board as manufacturing IPC-2581 XML with its BOM.
• TestPoint ict= uses a dedicated ICT footprint whose courtyard enforces 3 mm spacing.

Changed

• pcb ipc2581 edit bom --selections preserves canonical manufacturer IDs and selected supplier provenance.
• Interposer mate lands are Ø1.5 mm, sized for the fixture bed's 2.54 mm pogo blocks.
• Interposer pogo pads use the Mill-Max 806 footprint.

0.4.35 - 2026-08-24

Added

• Added pcb route --engine freerouting to auto-route boards locally via FreeRouting.
• Added pcb ipc interposer --route to auto-route the interposer with FreeRouting and stitch the GND pours with vias.

Changed

• pcb preview and its preview release upload path.
• pcb vendor remains available but is hidden from top-level command help.
• Removed deprecated v1 web-component workflows.

Added

• pcb publish warns about unknown BOM parts and parts without supplier offers.

0.4.34 - 2026-08-21

Added

• pcb ipc interposer generates the test-fixture interposer board for a board-array panel.

Fixed

• Nested DiodeHub packages continue resolving when a speculative repository prefix is inaccessible.

0.4.33 - 2026-08-21

Added

• pcb ipc ict lists ICT fixture contacts (components with an Ict BOM characteristic) as CSV.

Fixed

• DiodeHub dependency resolution falls back to SSH when HTTPS authentication is unavailable.

0.4.32 - 2026-08-20

Added

• TestPoint accepts an optional ict fixture role that is copied onto the footprint.
• pcb ipc dfm check validates IPC-2581 files against fabrication PDKs.

Changed

• pcb bom caches API matches for ten minutes and reuses an exact stale match offline or when an online refresh fails.
• pcb bom sends structured parameters for resistors, capacitors, crystals, LEDs, inductors, ferrite beads, rectifiers, Zener diodes, and TVS diodes to the API matcher.
• pcb bom writes the API-selected compatible MPN and manufacturer into output.

Fixed

• LSP navigation now resolves loaded symbols in the same package scope as evaluation.
• pcb layout --sync-footprints refreshes changed embedded 3D models even when their filenames stay the same.
• pcb bom again colors planner-selected parts by green, yellow, and red sourceability tiers.
• Copper balancing no longer emits sliver voids where boundary voids graze the fill boundary.
• Pads whose padstack definition is missing now render from their inline primitives.
• Drilled hole and slot diameters now honor feature placement-group scaling.

0.4.31 - 2026-08-18

Added

• pcb layout --sync-footprints reloads footprint definitions from source.
• Fabrication panel generation can emit only the usable packing area with --emit-usable-area.

Changed

• Default hole-to-hole clearance is now 0.3 mm.

Fixed

• IPC-derived Gerbers no longer apply padstack shape offsets twice to rotated pads.
• Board-array rail fiducials now distinguish top and bottom surfaces.
• BOM generation no longer panics when truncating UTF-8 component descriptions.
• Nested modules retain group ownership for copied routing and graphics during layout synchronization.
• Distinct KiCad signal names that sanitize to the same Starlark identifier are now uniquified instead of silently merging onto one net.

0.4.30 - 2026-08-14

Fixed

• Nested DiodeHub packages resolve from their owning git repository.

0.4.29 - 2026-08-12

Changed

• BOM sourcing now uses the API's deterministic offer order for five-board builds.
• Board arrays place rail fiducials and tooling holes on the other rail pair when the preferred pair does not fit.
• Auto board arrays error out when rail fiducials and tooling holes cannot fit.

0.4.28 - 2026-08-11

Changed

• Gerber exports emit simpler, more CAM-compatible copper geometry.
• Copper-balancing voids export as compact shared-aperture flashes.

0.4.27 - 2026-08-10

Changed

• KiCad Python scripts no longer inject package-specific module paths.
• Gerber exports now use a JLCPCB-compatible subset.

Fixed

• KiCad imports now preserve stackups with more than ten copper layers.
• Gerber X2 fabrication attributes now follow the specification.

0.4.26 - 2026-08-08

Fixed

• Inner copper Gerbers now use KiCad's layer numbering (In1_Cu, In2_Cu, ...).
• Exported Gerbers declare %TF.FilePolarity,Positive.
• Drill tool diameters snap to 1 µm, cleaning up float dust from EDA exports, and the tool table is sorted by diameter.
• Pads with rounded or custom shapes now export as shared Gerber aperture flashes instead of repeated regions, shrinking mask and paste layers.
• Rounded-rectangle pads export as compact parameterized macro apertures, and hexagon and octagon pads as polygon apertures.
• Gerber output no longer repeats object attributes on every object.

0.4.25 - 2026-08-07

Fixed

• Gerber manufacturing exports now expand panel instances for compatibility with CAM systems that do not support aperture blocks.

0.4.24 - 2026-08-07

Added

• ipc2581 warp estimates panel bow and twist against the IPC-6012 limit, with an optional HTML report.

Changed

• Board arrays default to copper balancing; fabrication panels default to no balancing. Both can be overridden.
• Default board configurations now keep copper at least 0.4 mm from the board edge.
• The default 1 oz board netclass now uses a 0.45 mm via diameter with a 0.20 mm drill.
• Removed pcb layout --temp; layouts are now always generated in their configured directory.

Fixed

• ipc2581 render now draws the copper inside repeated boards on a board array or fabrication panel.

0.4.23 - 2026-08-05

Added

• fab-panel create now automatically balances copper in the gutters between placed assembly panels.

Changed

• Gerber exports for copper-balanced panels are much smaller.

Fixed

• Pad shapes with padstack offsets now land at the correct position on rotated pads across all IPC-2581 outputs.

0.4.22 - 2026-08-04

Changed

• pcb doc now renders Markdown list items as styled bullets instead of literal hyphens.
• Removed API authentication via AWS credentials.

Fixed

• Gerber exports now include F.Fab/B.Fab drawings and preserve patterned IPC strokes.

0.4.21 - 2026-08-04

Added

• Added AEC-Q200-qualified Vishay D/CRCW e3 parts as 0402 generic resistor matches through 10 MΩ.

Changed

• pcb auth git configure now accepts a DiodeHub repository URL and scopes Git credentials to its exact HTTPS origin.
• Panasonic house resistor matches now use the current Panasonic Industry manufacturer name.
• The TDK MPZ house ferrite bead now uses the current TDK manufacturer name.

Fixed

• pcb auth now uses the latest stable managed toolchain instead of a workspace's pinned toolchain.

0.4.20 - 2026-08-03

Changed

• Strict (exact MPN) BOM matching is now the default for availability queries; opt out with [workspace.bom] strict = false.

0.4.19 - 2026-08-03

Changed

• Legacy Registry references now prefer the canonical DiodeHub identity while remaining compatible with legacy workspace identities.
• Updated the embedded Starlark runtime to the rebased starlark-rust 0.14.2 APIs.
• Updated pcb lsp to the LSP 3.18 Rust protocol stack.

Fixed

• LSP document notification errors no longer stop the language server.
• Hovering local Zener functions now shows their signatures and parameter defaults even when they have no docstring.
• pcb layout now keeps generated KiCad board files canonically formatted after updating board settings.
• pcb auth git now uses ambient Diode API authentication in managed sandboxes.
• Git dependency resolution now falls back to SSH when DiodeHub HTTPS authentication is unavailable.

0.4.18 - 2026-08-03

Changed

• PCB search and new-board defaults now use the DiodeHub Registry identity.
• Board-array balancing now certifies per-layer regions and reduces density and stack imbalance with variable voids.
• Board-array creation now prints a per-layer copper-balance summary and warns when stackup data is missing.
• Board-array balancing now keeps clear of stray panel-frame copper instead of failing.

Fixed

• Board-array creation now emits fiducials on both declared copper and solder-mask surfaces.
• Flattened IPC-2581 layer renders no longer drop stroked features such as plane-layer traces.

0.4.17 - 2026-07-31

Fixed

• IPC-2581 BOM selections now fall back to an explicit reference designator when the stable Path is unavailable.

0.4.16 - 2026-07-31

Added

• Added common fabrication panel sizes to pcb ipc2581 fab-panel create.
• Added reusable IPC board-array copper-balancing safe-region computation and clearance certification to pcb-ir.

Changed

• IPC-2581 fabrication views and panels now omit non-manufacturing data.
• Split the Nix flake's pcb shim and pcbc compiler into independent package outputs.

Fixed

• Fab panels now reserve configurable process margins.
• IPC-2581 parsing now preserves multiple feature children emitted in one Features block.
• Split fab-panel outlines and cutouts into separate Gerbers.

0.4.15 - 2026-07-29

Added

• pcb import now supports standalone KiCad schematics with accurate pin mapping and library-aware footprint resolution.

Changed

• Git authentication now leaves repository authorization to DiodeHub.

Fixed

• Corrected house TVS ratings and clamping-voltage range matching.
• Preserved explicit SSH remotes in PCB-owned Git operations.

0.4.14 - 2026-07-28

Added

• Added pcb auth git configure and pcb auth git unconfigure to manage host-specific global Git credential configuration for DiodeHub.
• PCB now authenticates its own DiodeHub Git operations without requiring global Git configuration.

Changed

• pcb migrate now rewrites legacy GitHub registry references to DiodeHub.
• Dropped support for Intel Macs; macOS now requires Apple silicon.

0.4.13 - 2026-07-27

Added

• Added pcb auth git as a Git credential helper that exchanges PCB authentication for short-lived DiodeHub Bearer credentials.
• Added pcb ipc2581 fab-panel create to tile up to 32 assembly panels with identical stackups into a fixed 18 by 24 inch fabrication panel.
• Added read-only pcb component search and pcb component download commands with pretty and raw JSON output.

Changed

• Deprecated legacy component API access through pcb search -m web:components and the online paths of pcb new component.

0.4.12 - 2026-07-24

Changed

• pcb lsp now reports its pcbc version, executable, client, workspace roots, and startup configuration.

Fixed

• E-series helpers now consider the nearest value in the adjacent decade without changing exact E-series inputs.
• IPC-2581 board-array output now uses schema-valid history changes and one feature per generated geometry container.
• Prevent textDocument/didSave from republishing an open-buffer netlist already emitted by textDocument/didChange.

0.4.11 - 2026-07-23

Changed

• Removed legacy LSP schematic position-write APIs.
• pcb ipc2581 edit bom now supports strict path-based selections; --rules is deprecated.

0.4.10 - 2026-07-23

Added

• Added pcb toolchain prune [--dry-run] and pcb toolchain repair <request>.

Changed

• pcb toolchain show is now read-only, checks for updates, and supports --offline.
• Toolchain install and self-update output now reports component status and failures accurately.
• Bundled pcb-rectify now reports its version and takes precedence over PATH.

Fixed

• Avoid duplicate LSP netlist updates for unchanged state.

0.4.9 - 2026-07-23

Added

• pcb scan supports page ranges with --pages START-END.

Changed

• LSP schematic position writes support atomic updates and deletions while remaining compatible with legacy clients.

Fixed

• [workspace.bom] strict = true now selects the API's strict BOM matcher instead of sending an ignored request-body field.

0.4.8 - 2026-07-22

Changed

• Added a Murata model for the 0201 2.2 nF house capacitor.
• Added a 0603 2.2 µF, 50 V X5R house capacitor; upgraded the 0402 470 nF part to X7R.

0.4.7 - 2026-07-10

Added

• LSP position saves accept a baseHash and return a text edit; evaluation results carry a contentHash.

Changed

• Physical quantity types now compose with * and / from builtin fundamentals, replacing builtin.physical_value().
• Physical dimensions now use five SI bases while preserving existing electrical units.

0.4.6 - 2026-07-08

Changed

• pcb scan now uses the datasheet cache API and skips re-uploading PDFs the backend already has.
• pcb new component resolves symbol datasheet URLs through the datasheet cache API and keeps the URL in the symbol instead of vendoring a local PDF copy.

0.4.5 - 2026-07-07

Added

• Added pcb gerber normalize to re-emit a Gerber layer through the pcb-ir pipeline.
• Added pcb ipc2581 dfm to flag features and gaps narrower than a manufacturing minimum.

Changed

• Gerber import preserves standard-aperture flashes.
• Board array profile Gerbers emit arcs instead of tessellated segments.

Fixed

• pcb sync no longer downgrades workspace dependency pins when local git tags are stale.
• Gerber regions no longer connect holes with board-length cut-in slivers.
• pcb open now accepts sandbox file URIs in the new /fs/read?path=... form emitted by Diode Registry and uses the current streamed sandbox exec API.
• Reference designators derived from instance-name hints now honor 4-digit (1000-series) numbers such as R1000, R1500, and LED1001 instead of silently auto-renumbering them.
• pcb doc @stdlib/... now works from inside any workspace.

0.4.4 - 2026-07-03

Added

• Added pcb sync --check to fail CI when hydrated pcb.toml manifests or vendored package versions are out of sync. The check covers the whole workspace regardless of the current directory.
• Added DIODE_API_AUTH=none to send Diode API requests without attaching client auth, for proxy-injected authentication.

Changed

• pcb sync now applies manifest and vendor updates only after the whole workspace resolves; a resolution failure no longer leaves partially hydrated manifests.
• pcb sync and pcb vendor no longer create an empty vendor/ directory when no packages match the vendor patterns.

Removed

• Removed pcb sync --offline; use pcb build --offline with a synced manifest for offline reproducibility.

0.4.3 - 2026-06-29

Added

• IPC-2581 mutations now create a history record when the source file does not already have one, including board array creation.
• IPC-2581 board arrays now include panelization metadata.

Fixed

• Fixed a pcb build performance regression in large workspaces with many packages.
• IPC-2581 to Gerber export now emits compound region holes as local Gerber cut-ins.

0.4.2 - 2026-06-26

Added

• Added IPC-2581 board array creation, viewing, and export support to pcb ipc.
• Added pcb rectify check and pcb rectify fix, backed by a bundled pcb-rectify sidecar binary, to check and patch KiCad footprint 3D model (rotate ...)/(offset ...) transforms by matching tessellated STEP geometry against the footprint's pads and holes.

Fixed

• pcb toolchain resolution now only considers fully-published releases. Releases are gated on a pcb/index/<version> completion marker written as the final step of publishing, so the shim never resolves or downloads a release whose artifacts are still uploading.
• NotConnected is now an open-net constructor, not a net type.

0.4.1 - 2026-06-22

Fixed

• Net kind merging now promotes empty or NotConnected placeholders to observed concrete kinds.
• Stdlib TVS matching now includes the SP3022-01ETG-NM SOD-882 peak pulse power rating.
• pcb build now rejects relative imports into undeclared nested workspace packages and asks users to run pcb sync.

0.4.0 - 2026-06-17

Fixed

• Net aliases used inside io() interface templates no longer unregister the original net name.
• Child net-symbol position overrides (# pcb:sch <child>.<NET>.<idx>) are no longer dropped when the net is renamed across the module boundary.
• Package content hashes ignore generated pcb.sum files.
• Read/evaluation paths now require hydrated manifests and never mutate dependency state.
• pcb info reports cache dependencies using stable .pcb/cache paths.
• Frozen eval root detection uses resolved package roots.
• Restored stdlib Crystal support for the 2012_2Pin package with its bundled KiCad footprint.

Changes

• Stdlib LEDs now use color-specific KiCad small filled symbols for single-color LEDs.
• Stdlib generic passives, diodes, crystals, ferrite beads, and test points now use KiCad small schematic symbols by default.
• Removed legacy v1/pcb.sum resolution, disabled pcb update, and dropped obsolete --locked read-command flags.
• pcb migrate removes deprecated [workspace].members; other commands reject it.
• pcb sync no longer writes stdlib-only KiCad dependency entries.
• pcb migrate now upgrades workspace pcb-version after successful latest-toolchain migrations.
• Added [workspace.bom] strict = true to require exact MPN matching when fetching BOM availability.
• pcb publish release metadata now records strict workspace BOM matching when enabled.
• Bundled selected KiCad library assets into stdlib, including embedded footprint STEP models; @kicad-symbols and @kicad-footprints now resolve to those bundled assets.
• Legacy gitlab.com/kicad/libraries/* manifest dependencies are ignored during resolution because stdlib carries the referenced KiCad assets.
• Updated stdlib generics to use KiCad 10.0.3 symbols and footprints, while keeping Crystal() compatible with KiCad 9 four-pin symbols.
• pcb publish now bundles only referenced KiCad split-symbol files instead of whole split-library directories.
• Added pcb +local ... to run the local toolchain installed by install.sh --local.
• pcb +nightly ... now caches nightly release metadata for 30 minutes.
• Removed legacy manifest and import support: [module], [packages], [assets], and [workspace].resolver are rejected; legacy stdlib load paths are no longer accepted; pcb migrate no longer runs V1 codemods.
• Removed deprecated stdlib files and modules, including config.zen, metadata.zen, pins.zen, kicad/*, and the generic BJT, diode, MOSFET, standoff, and terminal-block modules.
• Removed deprecated stdlib API shims, including Properties(), Schematics(), config_unit(), config_properties(), *Range unit aliases, legacy NetTie inputs, and legacy resistor, capacitor, ferrite, and inductor inputs.
• Removed deprecated language shims, including config(convert=...), bare add_property(...), NET= net casts, module DNP properties, automatic component property key capitalization, legacy Component(properties={...}) sourcing/DNP keys, and legacy net moved aliases.
• Regular nets now require explicit or assignment-inferred unique names; unnamed or duplicate regular nets fail evaluation.
• NotConnected nets are now source-unnamed; explicit names are ignored with a warning and downstream tools assign connection-derived names as needed.
• Added KiCad 10 jumper-pin support.

0.3.93 - 2026-06-12

Changed

• Remote sandbox sync now uses octet-stream writes, refreshes auth during sessions, and keeps recoverable local KiCad session files when sync exits unexpectedly.

0.3.92 - 2026-06-09

Changed

• pcb publish package mode now includes board manifests.

0.3.91 - 2026-06-08

Changed

• Added a No match (unknown part) type to the pcb bom availability legend and summary.

0.3.90 - 2026-06-04

Added

• Added ESR-aware stdlib crystal matching, 24 MHz house parts, and lower-ESR ECS 2520 options.

Fixed

• pcb publish now rehydrates V2 package dependency manifests when publishing dependents of newly tagged workspace packages.

0.3.89 - 2026-06-03

Added

• Render IPC-2581 artwork layers in stackup order, plus non-stackup layer SVGs, in the HTML export through the shared IR geometry pipeline.

Fixed

• Reduced cache-index SQLite connection churn during pcb sync to avoid intermittent crashes.
• Fixed the Nix flake build and exposed both pcb and pcbc.

0.3.88 - 2026-06-02

Added

• pcb build now accepts multiple explicit .zen file paths from the same workspace.
• Added pcb list -m -u and pcb list -m -versions for read-only V2 dependency update discovery.

Fixed

• pcb new board and fresh pcb import output no longer create obsolete pcb.sum files.

0.3.87 - 2026-05-29

Changed

• Batched IPC/Gerber polygon boolean operations for much faster real-board geometry processing.

Fixed

• pcb open now ignores diagnostics when evaluation still produces usable output.
• pcb build now syncs workspace-vendored dependencies before evaluating hydrated MVS v2 projects.
• pcb publish V2 source bundles now validate offline without requiring KiCad assets in .pcb/cache.
• V2 workspaces now derive KiCad footprint library names from resolved stdlib dependencies.

0.3.86 - 2026-05-28

Added

• Added a 48 V Vishay SMBJ DO-214AA unidirectional TVS house part.
• Added install.sh --local to build and install local pcb and pcbc binaries side-by-side for development.

Changed

• config() now rejects Starlark record() types as module input types.
• Lowered the default board-config minimum silkscreen text height from 0.8 mm to 0.6 mm.
• Removed the hidden pcb package subcommand.
• pcb update now rejects hydrated V2 dependency manifests and points users to pcb add -u.
• Workspaces with pcb-version = "0.4" or newer now always use MVS v2 dependency resolution.
• pcb migrate now hydrates V2 dependency manifests and removes obsolete pcb.sum lockfiles.
• Workspace package discovery is now implicit; use [workspace].exclude to prune paths.
• Updated the embedded Starlark runtime integration to the current starlark-rust APIs.

Fixed

• Removed stale KiCad board items that reference layers deleted by layout stackup sync.
• pcb add -u now works when the workspace root is also a package directory.
• Use hydrated MVS v2 dependency resolution consistently across CLI, LSP, docs, and WASM evaluation.

0.3.85 - 2026-05-21

Added

• Added Würth Elektronik WE-PMFI 1210 power inductors to stdlib house BOM matching.

0.3.84 - 2026-05-21

Added

• Added remote sandbox URI support for pcb open and pcb layout.
• Added pcb open support for local and remote .kicad_pcb files.
• Added a pcbc compiler/toolchain binary alongside pcb so releases can publish versioned toolchain artifacts.
• Added a rustup-style pcb shim crate that selects, installs, and executes the separate versioned pcbc toolchain crate from the workspace pcb-version lane or a +<toolchain> CLI override.
• Added pcb +nightly ... and scheduled pcbc nightly publishing from the head of main.

Changed

• Treat empty legacy Component() sourcing values as missing.
• Error for BOM components without part data unless house matching supports them.

0.3.83 - 2026-05-19

Changed

• Standalone pcb releases now use the Diode CDN for faster, less exciting downloads and update checks.

0.3.82 - 2026-05-19

Added

• Added pcb ipc2581 render for processed IPC-2581 layer output to SVG, PNG, and terminal graphics, including board outline overlays.
• Added pcb ipc2581 outline to export the IPC-2581 board profile as a KiCad-importable DXF.
• Added pcb ipc2581 gerber to export IPC-2581 fabrication layers as Gerber X2 files through a canonical artwork pipeline.
• Added initial gerberx2 crate and pcb gerber render SVG/PNG/terminal previews.
• Added pcb build --diagnostics <path> to write structured JSON diagnostics for all evaluated root files.
• Added pcb layout -f json and pcb layout --no-sync for machine-readable layout output and existing-layout discovery.

Changed

• Added diagnostic kinds for more toolchain diagnostics, including duplicate child names.
• Deprecated legacy properties= and sourcing kwargs on Component()/Module(); use typed kwargs (dnp, skip_bom, skip_pos, type, description, part=Part(...)).
• Deprecated the bare add_property(...) global in favor of builtin.add_property(...).
• pcb new board <name> <repo-url> now creates a board repository directly, replacing the separate pcb new workspace flow.
• pcb import now writes directly into a board repository root instead of creating boards/<name>/ under a workspace.
• Board release uploads now derive the Diode workspace name from the first path segment of [workspace].repository, with [workspace].name available as an override.
• pcb layout now deletes stale copied synced footprints.
• Deprecated stdlib generic modules generics/TerminalBlock.zen and generics/Standoff.zen, and removed generic BOM matching for standoffs.
• Removed the hidden pcb build --board-config JSON output option.

Fixed

• Fixed remote package imports from non-GitHub/non-GitLab hosts such as code.diode.computer.
• Fixed auto-dependency discovery warnings caused by non-import strings that only looked like remote URLs.
• Fixed stdlib LPDDR4 channel impedance defaults to use 40 Ω single-ended and 80 Ω differential routing targets.

0.3.81 - 2026-05-11

Changed

• Explicitly loading prelude-provided stdlib identifiers now emits a warning encouraging use of the @stdlib prelude.
• pcb self update now prints release notes between the old and new versions.
• pcb doc is now only for package documentation.
• Removed embedded docs/pages, embedded changelog rendering, pcb doc spec, pcb doc --install, and pcb doc --list.

Fixed

• pcb publish now tolerates layouts missing release text variables from older pcb layout runs by adding them during staging.

0.3.80 - 2026-05-11

Added

• Added stdlib BOM matching for Murata 0201 2.2nF capacitors.
• Added an LPDDR4 channel interface to stdlib.
• Added scoped multi-registry search for registry-backed pcb search.
• Builds now validate file-backed KiCad footprint S-expressions and embedded model checksums before layout generation.
• pcb info -f json now includes the full transitive external dependency closure using package metadata aligned with workspace packages.
• Added stdlib BOM matching for 0603 and 0805 Würth Elektronik WE-PMI and WE-PMCI power inductors.
• Added stdlib BOM matching for Panasonic ERJ-1GJF and ERJ-1GNF 0201 resistors.

Changed

• pcb layout now initializes release text variables in KiCad project and board files, using d10d3c0 as the placeholder git hash.
• Embedded STEP writers now use KiCad's current MMH3 checksums instead of legacy SHA-256 checksums.
• pcb embed-step is now shown in CLI help.

Fixed

• Improved pcb publish workspace resolution.
• pcb publish no longer loads and rewrites boards with KiCad Python just to update release text variables, avoiding headless KiCad failures.
• Fixed 4-digit resistor R-notation for generic BOM matching of sub-10Ω E96 values.
• MVS v2 layout generation now keeps cache-backed footprint library paths workspace-relative.

0.3.79 - 2026-05-08

Added

• Added simpler version footprint and separate QR to stdlib.

Fixed

• MVS v2 offline builds now load dependency manifests from vendor/ before falling back to the package cache.

0.3.78 - 2026-05-07

Fixed

• pcb layout now embeds footprint-relative 3D models.
• pcb layout --check and board publish now use a semantic managed-footprint/connectivity check instead of byte-comparing shadow-synced KiCad files.
• Schematic position parsing for hierarchical labels representing interface nets now works correctly.

0.3.77 - 2026-05-07

Changed

• Capacitor voltage-rating warnings now compare explicit ratings against the connected net voltage difference instead of the inferred 1.5x rounded requirement.
• Hydrated MVS v2 builds now reuse cached loads across packages with identical package-local dependency maps.

0.3.76 - 2026-05-06

Added

• Added SOD-882 TVS diodes with capacitance-based BOM matching.

Changed

• Capacitors now warn when explicit voltage ratings are below the inferred 1.5x rounded net-voltage requirement.

Fixed

• KiCad CLI discovery now checks PATH before platform fallbacks.
• pcb search now refreshes stale local registry and KiCad indexes before non-interactive searches.
• pcb layout no longer fails when KiCad groups contain generated tuning-pattern items.
• Capacitor auto voltage ratings now round the 1.5x net-voltage requirement up to common capacitor voltage tiers.

0.3.75 - 2026-05-02

Added

• Added API authentication via AWS credentials.

0.3.74 - 2026-04-30

Added

• Added experimental MVS v2 dependency resolution via pcb sync / pcb add.

0.3.73 - 2026-04-27

Changed

• Generated component .zen files now declare pins as flat top-level io(Net) assignments instead of a Pins = struct(...) block.
• Component datasheets now prefer Part metadata before component-level datasheets, with KiCad symbol datasheets as the final fallback.

0.3.72 - 2026-04-27

Added

• pcb layout, pcb simulate, and pcb test now support repeatable --config KEY=VALUE overrides.
• pcb-version now requires major.minor; auto-deps bumps older workspace minors forward and newer-required minors error out.
• pcb info -f json now includes package entrypoints and top-level KiCad symbol names.

Changed

• Removed pcb info --tree; it was not reliable and will be added back later when the dependency-tree semantics are more robust.
• Removed the hidden pcb mcp command and deleted the pcb-mcp / rquickjs integration from the workspace.
• Board releases no longer generate GLB model files.
• ODB++ release exports now use precision 4.
• pcb info now computes package dirty status from git metadata more efficiently.

Fixed

• pcb doc --package <url> now prefers matching local workspace members for bare package URLs.
• pcb doc now supports changelog[@latest|@unreleased|@<version>].
• Suppressed binding.rebind warnings for repeated _ discard targets in top-level assignments.
• Warn when a BOM-included non-generic component is missing part information.

0.3.71 - 2026-04-20

Added

• Extended house Schottky and TVS BOM ladders with additional higher-voltage entries.

Fixed

• Avoid collisions in generated footprint library names.

Added

• pcb fmt now supports --include=kicad-sym|all to format .kicad_sym files during directory walks.

0.3.70 - 2026-04-17

Fixed

• Unresolvable inherited KiCad symbol datasheet paths are now dropped silently instead of emitting build warnings.

0.3.69 - 2026-04-17

Fixed

• Fixed io prelude handling for generics/Rectifier.zen and generics/Zener.zen.
• Generated component .zen files now omit KiCad no_connect pins from io() and Component(..., pins=...).

0.3.68 - 2026-04-17

Migration Guide

Prefer template-first io(template) over io(type, default=...). default= for io() remains source-compatible for now, but it is deprecated and now emits a warning.

Before:

VDD = io(Power, default=Power("VDD", voltage="3.3V"))
GND = io(Ground, default=Ground("GND"))

After:

VDD = io(Power("VDD", voltage="3.3V"))
GND = io(Ground("GND"))

Example warning:

Warning: io() parameter `default` is deprecated; prefer template-first `io(template)` instead
    ╭─[ /Users/akhilles/src/diode/registry/reference/TCA9517Ax/TCA9517Ax.zen:46:6 ]
 46 │EN = io("EN", Net, optional=True, default=Net(VCC_A))
    │                             ╰──────────────────────── io() parameter `default` is deprecated; prefer template-first `io(template)` instead

Omit explicit connections for pin.no_connect pins. If a pin is marked no_connect, leave it out of pins and Component() will wire NotConnected() automatically.

Before:

NC = io("NC", Net)

Component(
    name="J1",
    ...,
    pins={"A": A, "B": B, "NC": NC},
)

After:

Component(
    name="J1",
    ...,
    pins={"A": A, "B": B},
)

Example warning:

Warning: Pin 'NC' on component '1-2199119-3' is marked no_connect but was explicitly connected to Net net 'NC'; omit it from `pins` and Component() will wire NotConnected() automatically
    ╭─[ /Users/akhilles/src/dioderobot/demo/components/TE_Connectivity/1M2199119M3/1M2199119M3.zen:38:8 ]
 38 │    NC=io("NC", Net),
    │             ╰─────── Pin 'NC' on component '1-2199119-3' is marked no_connect but was explicitly connected to Net net 'NC'; omit it from `pins` and Component() will wire NotConnected() automatically

Avoid rebinding the same top-level name in a module. If you need to derive a final wiring choice, bind it to a new name instead of overwriting the original io() or intermediate value.

Before:

RT = io("RT", Net)

if rt_value == "GND":
    RT = GND
elif rt_value == "VCC":
    RT = VCC

After:

RT = io("RT", Net)

if rt_value == "GND":
    rt_pin = GND
elif rt_value == "VCC":
    rt_pin = VCC
else:
    rt_pin = RT

Example warning:

Warning: Rebinding 'CURR_FDBK1_OPAMP_MINUS' in the same scope
    ╭─[ /Users/akhilles/src/dioderobot/demo/boards/DM0001/src/ShuntSense.zen:43:1 ]
 43 │CURR_FDBK1_OPAMP_MINUS = GND
    │           ╰─────────── Rebinding 'CURR_FDBK1_OPAMP_MINUS' in the same scope

Use Power() or Ground() for io()s that feed power pins instead of plain Net.

Before:

VDD = io("VDD", Net)
GND = io("GND", Net)

After:

VDD = io(Power())
GND = io(Ground())

Example warning:

Warning: Pin 'VDD' on component 'LIS3DH' is a power pin but is connected to plain Net 'VDD'; consider using Power() or Ground()
    ╭─[ /Users/akhilles/src/dioderobot/demo/components/STMicroelectronics/LIS3DH/LIS3DH.zen:16:9 ]
 16 │    VDD=io("VDD", Net),
    │               ╰─────── Pin 'VDD' on component 'LIS3DH' is a power pin but is connected to plain Net 'VDD'; consider using Power() or Ground()

Migrate deprecated generics/Diode.zen usage to the more specific diode generics:

• Use generics/Rectifier.zen for standard and Schottky diodes, including small-signal / signaling diodes.
• Use generics/Zener.zen for reverse-breakdown regulation and reference diodes.
• Use generics/Tvs.zen for transient-voltage suppressors.

Package mapping:

SMA -> DO-214AC
SMB -> DO-214AA
SMC -> DO-214AB
SOD-123 / SOD-323 / SOD-523 stay the same

Rectifier / Schottky:

Diode(package="SMA", variant="Schottky", v_r="40V", i_f="1A", v_f="500mV", A=A, K=K)
Rectifier(package="DO-214AC", technology="Schottky", reverse_voltage="40V", forward_current="1A", forward_voltage="500mV", A=A, K=K)

Zener:

Diode(package="SOD-123", variant="Zener", v_r="5.1V", A=A, K=K)
Zener(package="SOD-123", zener_voltage="5.1V", A=A, K=K)

TVS:

Tvs(package="DO-214AA", direction="Unidirectional", reverse_standoff_voltage="24V", reverse_clamping_voltage="38.9V", peak_pulse_power="3000W", A=GND, K=VIN)

Added

• Added generics/Rectifier.zen and generics/Zener.zen with expanded package support and house-part BOM matching coverage.
• pcb layout and board publish now fail early when a board was last saved by a newer KiCad major version than the one installed locally.
• pcb build now accept repeatable --config key=value for setting config() parameters.
• Net type physical-value fields now coerce string and scalar inputs like io()/config().
• Unnamed Net()/typed nets and generated interface child nets now infer names from assignment targets when possible.
• Add io() direction metadata plus input() / output() sugar.
• config(), io(), input(), and output() now allow omitting the explicit name when assigned to a top-level variable.
• config() now supports discrete allowed= sets for scalar and physical-value inputs.
• Preserve KiCad symbol pin metadata and add Component() pin/net compatibility warnings.
• Added style advice for redundant explicit names on io(), config(), nets, and interfaces.
• Add pass-based schematic ERC plumbing and net-site pin.no_connect diagnostics with inline suppression support.
• io(template) now infers placeholder types and enforces typed-net voltage compatibility.

Changed

• Component generation no longer automatically scans datasheets.
• Component modifiers can now override spice_model.
• House Murata caps now use vendor MLCC models when available.
• voltage_within() now accepts nets with voltage metadata or direct Voltage values.
• pcb new component and pcb search component imports now place datasheet artifacts under each component's docs/ subdirectory.
• Layout sync and KiCad netlist export now normalize file- and package-based footprints to library-aware FPIDs.
• Component() now infers spice_model from symbol Sim.* properties.
• Simulation() now accepts bom_profile=.
• Module-scoped variable rebinding is now a warning.
• Removed the 10uF 100V 1210 stdlib house capacitor from generic matching due to severe derating.
• Net and Power now expose unset voltage as None.
• Deprecated NET= net casts now warn; use positional forms like Power(other_net).
• Remove legacy pcb fork subcommands and reserve pcb fork for future use.

Fixed

• LSP diagnostics now publish to the .zen file that owns the root diagnostic span.

0.3.67 - 2026-04-10

Added

• Added workspace-scoped Diode endpoint overrides via [workspace].endpoint, with auth tokens stored per resolved endpoint.

Changed

• Loading deprecated stdlib physical-unit *Range aliases now emits a deprecation warning pointing to the corresponding base unit type.
• Deprecated the stdlib pins.zen and metadata.zen modules.
• Deprecated the Schematics() helper.
• Deprecated generic modules generics/Bjt.zen, generics/Diode.zen, generics/Mosfet.zen, and generics/OperationalAmplifier.zen.
• Deprecated non-standard packages in generics/Inductor.zen.
• Newly added KiCad symbol properties now default to justify left top and hide yes.
• pcb scan now resolves local PDFs through the shared datasheet materialization cache by default, and --output copies the materialized Markdown and images out of that cache.
• pcb scan now prints both PDF: and Markdown: output paths, with local PDF scans reporting the original input PDF path and URL scans reporting the materialized cached PDF path.
• pcb search now merges docs full-text results for registry packages and KiCad symbols, with consistent phrase handling across indices.

Fixed

• pcb build --offline now reuses selected locked pseudo-versions for rev-pinned workspace deps.
• PhysicalValue is now hashable in Starlark, including after freezing.
• Layout sync no longer creates empty footprint (embedded_files) blocks that KiCad removes on save.
• Fixed an LSP memory leak during reparsing.
• Rev-pinned dependencies now override stale lockfile-seeded pseudo-versions during resolution.

0.3.66 - 2026-04-06

0.3.65 - 2026-04-03

Added

• Added 10uF 100V 1210 house capacitor in stdlib

Fixed

• pcb layout no longer crashes when a managed component path is numeric-only, such as 1053091102.
• pcb build now warns and drops invalid inherited symbol datasheet paths instead of failing the build.

0.3.64 - 2026-04-02

Added

• Added support for KiCad 10.

0.3.63 - 2026-03-30

Changed

• KiCad symbol is now the source of truth for component metadata (footprint, datasheet, part); generated .zen files are minimal wrappers.
• Component() inherits skip_bom from the KiCad symbol in_bom flag (inverted) when not explicitly set.
• pcb fork add is now blocked and points users to pcb sandbox; pcb fork remove and pcb fork upstream remain for existing forks.

Added

• Warn when module io()s are declared but never connected to any realized ports.

Fixed

• Stdlib Crystal and MountingHole no longer expose unused variant-specific ports.
• Untagged branch/rev dependencies now use 0.1.1-0... pseudo-versions so they outrank plain 0.1.0 deps.

0.3.62 - 2026-03-27

Fixed

• pcb doc --package <url> now defaults remote packages to the latest tagged version and accepts an explicit @latest suffix.

0.3.61 - 2026-03-25

Added

• pcb new component now prints a Module("...") usage hint when it can infer a qualified URL.

Fixed

• Auto-deps now only upgrades synced workspace member dependency versions.
• Workspace-namespace dependencies now fail locally with a clear missing-member error instead of remote fetch fallback.

0.3.60 - 2026-03-25

Added

• Board publish now blocks outside CI when any pcb.toml uses [patch] or branch/rev dependencies.

Changed

• Show Fetching <repo> progress while populating shared bare repos under ~/.pcb/bare.
• Vendored remote packages now copy only canonical package files instead of whole cache directories.

Fixed

• Git HTTPS fallback probes now run non-interactively before falling back to SSH.
• Exclude pcb.sum in canonical package hash
• LSP now watches **/pcb.toml and **/pcb.sum for dependency and workspace updates.
• Auto-deps now sync workspace member versions against tags reachable from the current HEAD, avoiding version bumps from future history on historical checkouts.

0.3.59 - 2026-03-23

Added

• pcb search now supports kicad:components in both the TUI and non-interactive search.

Changed

• Dependency materialization now archives directly from ~/.pcb/bare for tagged and pinned dependencies.

Fixed

• Existing partial bare repos under ~/.pcb/bare now transparently hydrate to full clones before serving pinned local commits.

0.3.58 - 2026-03-21

Added

• Usb2TypeC interface adapter in stdlib to connet USB2 to TypeC
• Dvp interface for cameras with 8, 10, 12 and 16 bit width
• SdRam interface for 16 bit and 32 bit

Changed

• pcb publish for packages now builds before planning publish waves and aborts if the validation build dirties the repository.

Fixed

• pcb update now consistently scopes nested paths to the containing package.
• Branch and rev dependencies now resolve the pseudo-version matching the pinned commit, avoiding flaky pcb.sum entries.

0.3.57 - 2026-03-18

Added

• pcb publish now supports inferred package bumps from conventional commits with --bump=infer.
• pcb publish -y now skips the final package publish confirmation prompt.
• Include version in dependency/dependent URLs in search results (e.g. ...@1.0).

Changed

• All @stdlib/kicad/ modules (PinHeader, PinSocket, MolexPicoBlade, SolderWire, TagConnect) now emit deprecation warnings.
• pcb publish now fetches remote state before preflight checks and verifies local main is in sync with the remote.
• pcb publish for packages now requires the CI environment variable to be set (use --force or CI=true to bypass).
• Skill setup and instructions now live in pcb ai instead of the main pcb CLI and MCP server.

Fixed

• pcb publish now generates shorter conventional commit titles for dependency bumps.
• pcb publish now rolls back local tags and commits if pushing to remote fails.

0.3.56 - 2026-03-14

Fixed

• Reject same-package package URLs in Module() and require relative paths instead of adding self-dependencies.

0.3.55 - 2026-03-14

Fixed

• Stop syncing Alternatives and Matcher component metadata into KiCad footprint fields during layout sync.
• pcb bom now keeps MOQ-expensive offers in BOM output but marks them hard to source in table summaries instead of dropping them.

0.3.54 - 2026-03-12

Added

• Hidden pcb kq command to inspect KiCad symbol libraries as structured JSON views (sym, metadata, electrical, raw).
• pcb new component --component-id <id> now installs a web-searched component non-interactively, with optional --part-number fallback and --manufacturer override/fallback.
• [[workspace.kicad_library]] now supports parts = "<url>", materializing a virtual parts manifest for KiCad symbol repos so @kicad-symbols/... symbols can inherit default parts too.

Changed

• CLI and MCP component search JSON outputs are now aligned, with cleaner payloads and per-source caps for web:components.

Fixed

• pcb publish now shows patch, minor, and major bumps for boards consistently, and major on 0.x now produces 1.0.0.

0.3.53 - 2026-03-11

Added

• pcb new workspace now creates an empty pcb.sum, so pcb build --locked --offline works immediately.
• pcb scan now accepts http(s) datasheet URLs in addition to local PDF paths and prints the resolved markdown path.
• Part is now in the standard library prelude. Use Part(mpn=..., manufacturer=...) with Component(part=...) for manufacturer sourcing.
• pcb doc --install writes embedded documentation to ~/.pcb/docs; runs automatically on first use and after pcb self update.
• Component() now inherits default part, alternatives, and part qualifications from manifest parts entries matched by stable package:// symbol URIs.

Changed

• Part is now the single source of truth for component sourcing. mpn and manufacturer on Component() still work but part= is preferred.
• pcb new now uses subcommands (workspace, board, package, component) instead of --workspace/--board/--package/--component flags.
• pcb new component [DIR] now imports local component directories; pcb search --dir support was removed.
• Net is now defined in @stdlib/interfaces.zen and available via the stdlib prelude instead of being a language builtin.
• Removed deprecated backward-compatibility shims: builtin.physical_range(), builtin.Voltage/Current/etc. attributes, using().
• pcb scan removed --model and --json; local PDF and URL flows now both resolve to markdown output with default processing.

Fixed

• match_component() now skips non-component children such as ElectricalCheck instead of failing on missing mpn.
• pcb update no longer proposes updates for KiCad asset libraries (symbols, footprints, 3D models) which publish breaking changes in patch releases.
• Auto-dependency detection now resolves relative path imports that cross workspace member boundaries (e.g. load("../../modules/Lib/Lib.zen", ...)).
• Layout sync now applies pad assignments to all same-number KiCad pad objects in a footprint.

0.3.52 - 2026-03-07

Added

• config() now supports checks parameter for validation functions, matching io().
• Stdlib prelude: Power, Ground, NotConnected, Layout, and Board are now implicitly available in .zen files without explicit load() statements.

Changed

• config() parameter convert is now deprecated and emits a warning.
• Bundle the standard library with pcb and make it available automatically in each workspace.

Fixed

• Preserve KiCad zone priorities during layout.sync and bias fragment zones so overlapping fills keep the intended precedence.

0.3.51 - 2026-03-04

Changed

• Bump stdlib to 0.5.11

Added

• Added typed part metadata with builtin.Part(...) and Component(part=...), including JSON netlist serialization and list[Part] support for properties["alternatives"].

Fixed

• Apply MVS-selected KiCad asset versions in resolution/materialization and sibling promotion, preventing @kicad-* alias failures after patch updates.
• pcb update now ignores prerelease dependency versions when selecting updates.

0.3.50 - 2026-03-02

Changed

• Bump stdlib to 0.5.10

Fixed

• pcb publish now skips tracked paths from regular manifest dependencies and correctly copies tracked asset directories, fixing release staging failures on patched/forked module layouts.

0.3.49 - 2026-03-02

Changed

• Replace [assets] with [[workspace.kicad_library]] for built-in resolution of KiCad symbol, footprint, and 3D model repositories.
• Embed referenced 3D models directly into .kicad_pcb layout files, eliminating the need for external 3D model files at layout time.

0.3.48 - 2026-02-28

Added

• pcb simulate: run SPICE simulations directly via ngspice with inline set_sim_setup(), --netlist/-o - output, workspace discovery, and LSP diagnostics on save. Errors on components missing a SpiceModel to prevent incomplete netlists.
• Support net names in f-strings for SPICE simulation setup (e.g. f"V1 {VIN} {GND} AC 1"), including dot-notation for interface nets ({POWER.vcc}).

Fixed

• Normalize net and component symbol source paths to package://..., so emitted schematic/netlist symbol_path values no longer leak absolute cache paths.

0.3.47 - 2026-02-27

Fixed

• Ensure File() footprint paths resolve to package://... when dependency files are read from ~/.pcb/cache.

0.3.46 - 2026-02-26

Changed

• Use zstd level 17 (was 15) when embedding STEP 3D models into KiCad footprints.
• Path(..., allow_not_exist=True) no longer emits missing-path warnings.
• pcb search component add now prefers symbol datasheets, using fallback URL scan only when needed.
• pcb search add-component now rewrites symbol Manufacturer_Part_Number/Manufacturer_Name metadata before generating .zen.

Fixed

• Normalize netlist package_roots cache paths to <workspace>/.pcb/cache for unvendored remote dependencies (including stdlib).
• MCP resolve_datasheet now avoids top-level JSON Schema combinators in inputSchema, fixing strict MCP clients (e.g., Claude Code) that reject oneOf at schema root.

0.3.45 - 2026-02-25

Added

• Added pcb doc guides for bringup, changelog, and readme conventions.
• Added MCP tool resolve_datasheet to produce cached datasheet.md + images/ from datasheet_url, pdf_path, or kicad_sym_path.
• Added LSP request pcb/resolveDatasheet, sharing the same resolve flow as the MCP tool.

Fixed

• Standalone .zen files with inline manifests now map Board(..., layout_path=...) to package://workspace/..., avoiding absolute-path leakage.
• Stackup sync now emits dielectric (type ...) once per grouped layer (not per addsublayer), preventing spurious layout.sync drift.

0.3.44 - 2026-02-20

Added

• Component() now infers missing footprint from symbol Footprint (<stem> or KiCad <lib>:<fp>), reducing duplicated footprint data over .kicad_sym.

Changed

• MCP external tool discovery now prefers mcp --code-mode=false (raw tools) and falls back to mcp only when needed, avoiding nested code-mode wrappers for compatible pcb-* backends.

Fixed

• Reduced layout.sync false positives in publish/check flows by normalizing .kicad_pro newline writes and ignoring trailing whitespace-only drift when comparing synced layout files.
• Simplified dependency fetch/index concurrency paths and reuse a shared cache index during resolve/fetch phases to reduce open-file pressure on macOS.
• Auto-deps is now conservative and online-only: it adds remote deps only after successful materialization, skips imports already covered by existing dependencies/assets, and no longer infers missing deps from pcb.sum.
• Branch-based dependencies now require commit pinning for reproducibility: online resolve/update pins branch deps to rev, while --locked/--offline reject branch-only declarations.
• Fixed dotted pin-name handling by resolving port owners with longest-prefix component matching in netlist/layout/publish flows.

0.3.43 - 2026-02-18

Added

• pcb import now imports KiCad design rules (including solder-mask/zone defaults), copies sibling .kicad_dru, and prints the generated board .zen path.
• pcb fmt now formats KiCad S-expression files when given explicit file paths.

Changed

• Bump stdlib to 0.5.9
• pcb layout --check now runs layout sync against a shadow copy.
• Removed --sync-board-config; board config sync is now always enabled for layout sync (CLI, MCP run_layout, and pcb_layout::process_layout).
• Stackup/layers patching in pcb layout now uses structural S-expression mutation + canonical KiCad-style formatting, with unconditional patch/write.
• pcb layout stackup sync now also patches general (thickness ...) from computed stackup thickness.
• Removed MCP resource zener-docs (https://docs.pcb.new/llms.txt) from pcb mcp, with Zener docs now embedded in pcb doc.
• Move board-config/title-block patching to Rust; simplify Python sync; only update .kicad_pro netclass patterns when assignments exist.
• pcb search now formats generated component .kicad_sym and .kicad_mod files with the KiCad S-expression formatter.
• pcb search now rewrites imported symbol property "Footprint" to the local lib:footprint form (<stem>:<stem>), matching fp-lib-table resolution during layout sync.
• pcb search now fails fast unless imported .kicad_sym contains exactly one symbol.

Fixed

• Standardized KiCad unnamed-pin handling: empty/placeholder names now fall back to pin numbers in both import and runtime symbol loading, fixing Unknown pin name errors for imported components.
• KiCad symbol variant parsing now selects one style per unit using named-pin coverage (tie: lowest style index), avoiding pin-name overrides while supporting _N_0 symbols.

0.3.42 - 2026-02-13

Changed

• config() physical-value coercion now accepts numeric scalars (int/float) in addition to strings, matching constructor behavior.
• config() now enforces required module inputs: optional=False emits an error diagnostic even when default is set; omitted optional infers from default.
• Bump stdlib to 0.5.8

Fixed

• Fix package:// resolution for workspace and versioned dependencies, preventing absolute path leakage from File().

0.3.41 - 2026-02-12

Fixed

• Harden pcb import passive value parsing (e.g. 1 uF, 2,2uF, 1uF/16V, 10 kΩ, R10) so generic R/C auto-promotion is applied consistently.

0.3.40 - 2026-02-12

Added

• load() and Module() with relative paths can now cross package boundaries within a workspace, resolved through the dependency system.

Fixed

• pcb publish now works when run from a board directory with a relative .zen path (e.g., pcb publish DM0002.zen).

Changed

• Resolve Path() and File() to stable relative paths for machine-independent build artifacts.
• Bump stdlib to 0.5.7
• pcb import now scaffolds a full workspace (git init, README, .gitignore) when the output directory is new, matching pcb new --workspace.

0.3.39 - 2026-02-11

Fixed

• Layout discovery now uses only .kicad_pro files, ignoring extra .kicad_pcb files in the layout directory.

0.3.38 - 2026-02-11

Added

• pcb release now includes drc.json in the release archive containing the full KiCad DRC report.
• pcb import <project.kicad_pro> <output_dir> to generate a Zener board from a KiCad project.

Changed

• KiCad layout discovery no longer assumes layout.kicad_pcb; it now discovers a single top-level .kicad_pro (preferred) or .kicad_pcb in the layout directory and errors on ambiguity.

0.3.37 - 2026-02-09

Added

• Reference designator assignment now opportunistically honors unambiguous hierarchical path hints (e.g. foo.R22.part).
• pcb:sch comments now support optional mirror=x|y, and netlist instances.*.symbol_positions.* now serializes mirror when set.

Fixed

• Improved LSP file change syncing to prevent spurious diagnostics.

0.3.36 - 2026-02-06

Fixed

• On layout sync, detach all items from removed KiCad groups before deleting the group to avoid SaveBoard crashes from stale group handles.

0.3.35 - 2026-02-06

Added

• pcb new --board now generates README.md and CHANGELOG.md files from templates
• pcb new --package now generates README.md and CHANGELOG.md files from templates

Changed

• Bump stdlib to 0.5.6
• pcb update <path> limits updates to a single workspace package when <path> points to that package directory.
• Reference designator auto-assignment now uses natural sorting of hierarchical instance names (e.g., R2 before R10).
• Drop support for v1 workspaces

Fixed

• Stabilize auto-named single-port NotConnected() net names (e.g., NC_R1_P2) to reduce layout implicit renames.
• Layout sync: explode single-pin multi-pad NotConnected nets into per-pad unconnected-(...) nets.
• Accept KiCad copper role jumper when importing stackups.
• IPC-2581 rev B: parse FunctionMode level attribute as numeric.
• Restoring missing KiCad groups no longer triggers fragment placement that can move existing footprints.

0.3.34 - 2026-02-03

Added

• pcb preview <path/to/board.zen> to generate a preview link for a release.

Changed

• Board release gerber exports now use Gerber X2 format.
• Board release drill exports now generate separate PTH/NPTH Excellon files and both PDF + GerberX2 drill maps.

Fixed

• Restore NotConnected compatibility: keep normal connectivity (no per-pad net exploding), warn when it connects multiple pins, and only mark pads no_connect for single-pin cases.

0.3.33 - 2026-02-03

Changed

• PhysicalValue now formats symmetric tolerances as 10k 5% (instead of min–max (nominal nom.)).

0.3.32 - 2026-02-02

Changed

• Unify physical value and range types (e.g. VoltageRange is just an alias to Voltage)
• Deduplicate pin names when generating component .zen file

0.3.31 - 2026-02-01

Added

• config() now auto-converts strings to PhysicalValue/PhysicalRange types (e.g., voltage = "3.3V")

Fixed

• io() default values now correctly apply net type promotion (e.g., default=NotConnected() promotes to the expected net type)

0.3.30 - 2026-02-01

Added

• Warning for unnamed nets that fall back to auto-assigned N{id} names
• NotConnected nets now preserve their type in schematics and can be passed to any net type parameter
• Layout sync now handles NotConnected pads correctly

Changed

• Bump stdlib to 0.5.4

0.3.29 - 2026-01-26

Changed

• pcb publish no longer fails on warnings in non-interactive mode (CI)

Fixed

• pcb publish now correctly handles workspaces with nested packages

0.3.28 - 2026-01-26

Added

• pcb publish <path/to/board.zen> to publish a board release

Removed

• pcb tag and pcb release are no longer supported. Use pcb publish <path/to/board.zen> instead.

Changed

• Bump stdlib to 0.5.3

0.3.27 - 2026-01-23

Added

• Post-sync detection of stale moved() paths that weren't renamed

Changed

• Bump stdlib to 0.5.2
• Deterministic diagnostic ordering during parallel module evaluation
• moved() directives are now skipped if the target path already exists in the layout
• moved() now requires at least one path to be a direct child (depth 1)
• pcb publish now uses single confirmation prompt instead of two
• pcb release now works for boards without a layout directory
• pcb layout now auto-detects implicit net renames and patches zones/vias before sync

Removed

• Remove board_config.json generation from pcb release

Fixed

• Validate that member packages do not have [workspace] sections during workspace discovery
• pcb new --board and pcb new --package no longer generate [workspace] sections in pcb.toml
• pcb update now correctly respects interactive selection for breaking changes
• pcb release now correctly identifies the board package when workspace root has dependencies
• copy_dir_all now skips hidden files/directories to prevent copying .pcb/, .git/, etc.

0.3.26 - 2026-01-20

Changed

• Bump stdlib to 0.5.1
• Standardize CLI: build/test/fmt take optional [PATH], layout/bom/sim/open/route/release require <FILE>

0.3.25 - 2026-01-19

Added

• Add pcb mcp eval to execute JavaScript with MCP tools (also exposed as execute_tools MCP tool)
• Add pcb run add-skill to install the pcb skill into any git repository
• Add V2 dependency resolution support to pcb sim (adds --offline and --locked flags)
• Add pcb search --mode to specify starting mode (registry:modules, registry:components, web:components)
• Add availability, pricing, offers to pcb search, pcb bom -f json, MCP tools

Changed

• pcb layout now displays sync diagnostics (orphaned zones/vias, moved path warnings) even without --check
• Zones/vias referencing deleted nets are now unassigned instead of heuristically reassigned; use moved() for intentional net renames
• Change pcb search --json to pcb search -f json for consistency with other commands
• Rename pcb search TUI modes: registry → registry:modules/registry:components, new → web:components

Removed

• Remove --add flag from pcb search
• Remove unused pcb bom --rules flag

Fixed

• Fix pcb layout group splitting regression where running layout twice would cause module groups to split into two (one with footprints, one with tracks/zones)
• Fix race condition when populating dependency cache

0.3.24 - 2026-01-14

Added

• pcb release now generates a canonical netlist.json in the release staging directory

0.3.23 - 2026-01-13

Added

• Add pcb doc --changelog to view embedded release notes
• Add pcb doc --package <url> for viewing docs of a Zener package
• Add pcb doc --package <pkg> --list to list .zen files in a package as a tree
• Add subpath filtering for pcb doc --package (e.g., @stdlib/generics filters to generics/)

Changed

• Bump stdlib to 0.4.10
• MCP search_registry tool now returns workspace-relative cache paths when run inside a workspace

Removed

• Remove stdlib hijacking from evaluator. The toolchain now relies on the pinned stdlib version instead of replacing types at runtime.

Fixed

• Fix repeated gitignore parsing when walking multiple directories

0.3.22 - 2026-01-13

Added

• Add pcb new --workspace <name> --repo <url> to create a new workspace
• Add pcb new --board <name> to create a new board in an existing workspace
• Add pcb new --package <path> to create a new package (e.g., modules/my_module)
• Add pcb new --component to search and add a new component via the TUI
• Add pcb doc command for viewing embedded Zener documentation with fuzzy search
• Add HTML export to pcb ipc2581 command
• Add surface finish detection and color swatches to pcb ipc2581 info and HTML export
• Include IPC-2581 HTML export as release artifact at manufacturing/ipc2581.html

Changed

• Refactor layout sync to use a groups registry (virtual DOM pattern) as source of truth instead of querying KiCad directly

Removed

• Remove get_zener_docs MCP tool (use pcb doc CLI command instead)
• Remove pcb search --legacy flag and the old interactive API search. Use the default TUI-based registry search instead.
• Remove pcb clean command. To recover from cache issues, manually delete files in ~/.pcb.
• Remove fab_drawing.html from release artifacts (replaced by IPC-2581 HTML export)
• Remove docs/ directory from release staging output

Fixed

• Fix pcb layout crash due to stale SWIG wrappers after removing empty groups
• Fix intermittent "No such file or directory" errors during package fetch caused by race conditions between concurrent pcb processes

0.3.21 - 2026-01-10

Added

• Add v2 dependency resolution support to pcb test

Changed

• Use source layout directly in release instead of separate copy
• Change extra footprint sync diagnostic from error to warning
• Show module path and FPID in layout sync diagnostics (extra_footprint, missing_footprint, fpid_mismatch)
• pcb layout now auto-replaces footprints when FPID changes (preserving position and nets)
• Speed up workspace discovery by pruning unrelated directories

Fixed

• Fix pcb layout --check only reporting first extra footprint instead of all
• Fix inconsistent handling of invalid pcb.toml files between pcb build and pcb publish
• Fix fp-lib-table in release staging to use vendored paths instead of .pcb/cache
• Create <workspace>/.pcb/cache symlink pointing to ~/.pcb/cache for stable paths

0.3.20 - 2026-01-09

Added

• Add pcb route command for auto-routing using DeepPCB
• Detect footprint sync issues (FPID mismatch, missing/extra components) during layout

Changed

• Skip version prompt for unpublished packages in pcb publish (always 0.1.0)
• Error on path dependencies that point to workspace members
• Error on pcb.toml parse failures

Fixed

• Fix asset resolution to check vendor directory before cache
• Fix inconsistent vendoring with folder assets and subfiles
• Fix TUI package details not loading after fresh index download

0.3.19 - 2026-01-06

Added

• Add pcb fork subcommands (add, remove, upstream) for local package forking
• Add TUI mode to pcb search for browsing registry packages

Changed

• Bump stdlib to 0.4.9

0.3.18 - 2026-01-01

Added

• Support schematic="embed"/"collapse" as a top-level kwarg
• Add dirty status to pcb info -f json output
• Warn on duplicate module name

Changed

• Error on invalid type passed to io()
• Format the auto-generated component .zen files