v3.8.51 v4.22.0

high risk

windmill-labs/windmillSep 30, 2026 → Sep 30, 20260 days between releases

What's New

Major version jump introduces advanced graph pathfinding algorithms (A*, Yen's) and CCH path index.

Breaking Changes

  • Major version jump (3.x to 4.x) likely introduces breaking API changes
  • Remove full-sync requirement from the decoder

New Features

  • A* search with admissible heuristic for optimal routes
  • Yen's k-shortest paths with goal-directed spur search
  • CCH path index for fast repeated shortest-path queries
  • All-shortest-paths and k-shortest-paths procedures
  • Incremental maintenance for CCH path index

Improvements

  • Optimality/cost-model fixes for path algorithms
  • Replication and persistence fixes
  • Persistence: full RDB serialization restored on load
  • Replica Delta_set transpose maintenance

Bug Fixes

  • Crash on MERGE preceded by an erroring clause
  • Crash when a clause errors mid plan-build
  • Replica SIGSEGV applying UPDATE_EDGE/UPDATE_NODE effect naming a freed id

Upgrade Notes

Upgrading requires attention to the decoder changes, specifically the removal of the full-sync requirement. Ensure your configuration handles the new Graph_EncodingVersion export correctly.

The Two Releases

v3.8.51

v3.8.51

Sep 30, 2026· 22 days ago

A massive release with over 2,000 documented changes focusing on provider catalog updates, security hardening, and advanced routing features including audio/video bridges and dashboard improvements.

Full release notes
v4.22.0

v4.22.0

Sep 30, 2026· 21 days ago

Introduces advanced path-finding algorithms including A* search and Yen's k-shortest paths, along with a new CCH path index for faster repeated queries. Fixes replication and persistence issues.

Full release notes