v3.20.234-lts v6.0.0

high risk

firecrawl/pdf-inspectorSep 29, 2026 → Sep 29, 20260 days between releases

What's New

Major engine rewrite from C to Rust with breaking replication and configuration changes

Breaking Changes

  • Mixed 4.x and 6.0 nodes in replication sets are incompatible.
  • Configuration option `EFFECTS_THRESHOLD` is now ignored.
  • Configuration option `TIMEOUT` is deprecated.
  • Docker tags `latest` and `latest-alpine` point to different engines.

New Features

  • Rust-based query engine replacing the legacy C engine.
  • New replication mechanism using effects format v3.
  • RediSearch 8.6.1 for full-text and vector indexes.

Improvements

  • Improved performance with the new Rust engine.
  • Improved memory safety with `GRAPH.BULK`.
  • Updated search engine to RediSearch 8.6.1.

Upgrade Notes

Do not mix 4.x and 6.0 nodes in the same replication set. Update configuration to use `TIMEOUT_DEFAULT` and `TIMEOUT_MAX` instead of `TIMEOUT`. Note that `latest-alpine` still uses the C engine.

The Two Releases

v3.20.234-lts

v3.20.234-lts

Sep 29, 2026· 23 days ago

Fixes canvas scrolling and adds testing contracts for widgets.

Full release notes
v6.0.0

v6.0.0

Sep 29, 2026· 23 days ago

Major rewrite of the FalkorDB engine from C to Rust. While the API remains compatible (Redis module, GRAPH commands), replication mechanisms and package structures have changed significantly.

Full release notes