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v4.20.4

zeroclaw-labs/zeroclawv4.20.4Aug 20, 2026by swilly22

Upgrading?

What changed from 6.0.8 → v4.20.4?What's new in v0.25.6 after v4.20.4?

AI Summary

This release fixes a critical crash bug in replicas caused by divergence between master and replica states. It also improves performance by optimizing how graph matrices are decoded from RDB files.

Key Highlights

  • Replicas no longer crash when an effect references a missing node or edge (SIGSEGV fix)
  • Incremental matrix rebuilding during RDB decoding speeds up graph loading
  • New public APIs allow external modules to manage graph encoding versions

New Features

  • Export of Graph_EncodingVersion and Graph_GetDecoder APIs

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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