v4.20.2

silvia-odwyer/photonv4.20.2Aug 9, 2026by swilly22

Upgrading?

AI Summary

This release introduces significant improvements to replication mechanisms, including a default effects-based approach and better handling of query pausing and divergence.

Key Highlights

  • Defaulted to replicate using effects by default, extending this mechanism to include indices and constraints.
  • Implemented query abortion when the database is paused to prevent inconsistent states.
  • Fixed constraint replication commands to ensure data consistency across replicas.
  • Added detection of replica divergence to automatically trigger a full synchronization.
  • Added query queuing functionality for stub loading scenarios.

New Features

  • Effects-based replication system for indices and constraints.
  • Query pausing and automatic aborting capabilities.
  • Replica divergence detection and full sync triggering.
  • Query queuing on stub loading.

Full Release Notes

## What's Changed

* Replicate using effects by default, extend effects to include indices and constraints #2398
* Abort query when paused #2372
* Fix constraint replication command #2261
* Detect replica divergence and trigger full sync #2247
* Queue queries on stub loading #2230

**Full Changelog**: https://github.com/FalkorDB/FalkorDB/compare/v4.20.1...v4.20.2

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