v1.819.0 v6.0.0

high risk

windmill-labs/windmillSep 29, 2026 → Sep 29, 20260 days between releases

What's New

Newer release is a Rust engine rewrite (FalkorDB) while older release adds OIDC claims and hub sync (Windmill).

New Features

  • New Rust engine
  • New search engine (RediSearch 8.6.1)
  • GRAPH.BULK no longer reserves memory based on client count

Improvements

  • Faster queries and less memory on write-heavy workloads
  • Replication mechanism changed to effects only, eliminating need to re-run queries
  • Replicas don't re-run queries

Bug Fixes

  • Crash and hang fixes for complex queries

Upgrade Notes

The provided release notes are for different repositories (Windmill and FalkorDB), so an upgrade path cannot be determined.

The Two Releases

v1.819.0

v1.819.0

Sep 29, 2026· 23 days ago

Focuses on security, stability, and performance improvements. Key additions include provenance claims in OIDC tokens and a new hub sync button. Performance optimizations allow advancing flow steps with a single update and completing jobs in one statement.

Full release notes
v6.0.0

v6.0.0

Sep 29, 2026· 23 days ago

Major rewrite of the engine in Rust. Changes replication to use effects only, eliminating the need for replicas to re-run queries. Requires upgrading all nodes in a replication group together.

Full release notes