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v4.20.4

silvia-odwyer/photonv4.20.4Aug 20, 2026by swilly22

Upgrading?

What changed from v0.1.3 → v4.20.4?What's new in v3.3.4 after v4.20.4?

AI Summary

This update prioritizes performance and stability, preventing crashes during replica divergence and significantly speeding up graph loading times. It also introduces new public APIs to facilitate external module integration.

Key Highlights

  • Prevented replica SIGSEGV crashes when UPDATE_EDGE or UPDATE_NODE effects diverge by triggering full resync instead.
  • Accelerated graph loading by removing full sync requirements from the decoder, using incremental delta-matrix rebuilding.
  • Exported new public APIs `Graph_EncodingVersion` and `Graph_GetDecoder` for external modules like graph-offloading.
  • Improved efficiency when stamping persisted graph dumps with specific encoding versions.

New Features

  • New public APIs for graph encoding versioning and decoding selection.

Full Release Notes

## What's Changed

### Bug Fixes
* fix(effects): stop replica SIGSEGV on UPDATE_EDGE/UPDATE_NODE divergence - replicas no longer crash when an effect references a node or edge that no longer exists locally; the mismatch is now detected and triggers a full resync instead (#2581)

### Performance
* remove full sync from decoder - transpose matrices are rebuilt incrementally as delta-matrix components are set during RDB decoding instead of forcing a full sync at the end, speeding up loading of persisted graphs (#2584)

### Improvements
* serializers: export Graph_EncodingVersion and Graph_GetDecoder - new public APIs let external modules (e.g. graph-offloading) stamp dumps with their encoding version and select the matching decoder on load (#2552)

**Full Changelog**: https://github.com/FalkorDB/FalkorDB/compare/v4.20.3...v4.20.4

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