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Will Binns-Smith ec107c16dd lazy server hmr (#96566)
## Summary

Make Turbopack server HMR demand-driven. Server updates are now compiled
and applied when the next relevant request writes an endpoint, instead
of eagerly evaluating changed server modules after every file change.

This replaces the aggregate server HMR subscription with an on-demand
update API, while preserving incremental updates and falling back to
full cache eviction when a restart is required.

Test Plan: added an e2e test

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Co-authored-by: vercel-fleet-prod[bot] <318278635+vercel-fleet-prod[bot]@users.noreply.github.com>
Co-authored-by: Will Binns-Smith <755844+wbinnssmith@users.noreply.github.com>
2026-08-31 09:12:51 -07:00
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2026-08-31 09:12:51 -07:00
2026-08-31 09:12:51 -07:00