v4.20.0

OpenMOSS/MOSS-Transcribe-Diarizev4.20.0Jul 13, 2026by swilly22

AI Summary

A major version release featuring new traversal semantics, performance optimizations for pathfinding algorithms, and the removal of Bolt support.

Key Highlights

Introduced Variable Length Traversal semantics
Removed Bolt support
Upgraded RediSearch 8.6 build infrastructure
Optimized SPpaths and Dijkstra algorithms

Breaking Changes

Removed Bolt support

New Features

Variable Length Traversal semantics
Enforced maximum length on identifiers
Performance improvements for shortest path algorithms

Full Release Notes

## What's Changed

### 🚀 Features & Semantics
* Variable Length Traversal semantics by @GomezGab in #2156
* Enforce a maximum length on identifiers by @GomezGab in #2108

### ⚡ Performance
* Improve algo.SPpaths single shortest path performance by @swilly22 in #2163
* Optimize dijkstra by @swilly22 in #2173
* Defrag locking by @swilly22 in #2175

### 🐛 Bug Fixes
* fix(defrag): don't stall or orphan writes under active defrag by @DvirDukhan in #2191

### 🔧 Changes
* remove bolt support by @swilly22 in .#2170

### 📦 Dependencies
* chore(deps): update libcurl to curl-8_21_0 by @github-actions[bot] in #2153

### 🧪 CI & Internal
* ci: RediSearch 8.6 build infrastructure by @DvirDukhan in #2101
* ci(build): decouple promote-toolchain from the app build by @DvirDukhan in #2113
* test(flow): increase code coverage with tests by @gkorland in #2067
* Fix coderabbit config by @gkorland in #1936

**Full Changelog**: https://github.com/FalkorDB/FalkorDB/compare/v4.18.11...v4.20.0