v4.20.0

Name: emailwiz
Author: LukeSmithxyz

LukeSmithxyz/emailwizv4.20.0Jul 13, 2026by swilly22

Upgrading?

What changed from server-v0.0.5 → v4.20.0?What's new in v4.20.1 after v4.20.0?

Release notes summary

Major release introducing variable length traversal semantics and enforcing maximum identifier lengths, alongside performance optimizations.

Key Highlights

Variable length traversal semantics
Maximum identifier length enforcement
Performance improvements for SPpaths and Dijkstra
Removes Bolt support

Breaking Changes

remove bolt support

New Features

Variable length traversal semantics
Maximum identifier length enforcement
Defrag locking improvements
Dependency updates (libcurl, RediSearch infrastructure)

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

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