v0.66.1

netbirdio/netbirdv0.66.1Mar 3, 2026by mlsmaycon

AI Summary

This release focuses on stability and security, addressing critical client and server bugs like deadlocks and mutex issues. It introduces new self-hosting capabilities and upgrades the underlying Alpine Linux.

Key Highlights

Fixed server mutex blocking and closed-channel panic in client retry loops.
Added Embedded IdP PostgreSQL database support for self-hosted deployments.
Upgraded Alpine Linux to version 3.23.3 for security hardening.
Added reverse proxy services REST client and explicit target deletion logic.
Fixed deadlock in route peer status watcher and profile config permissions.

New Features

Embedded IdP PostgreSQL database support
SQL file locations for auth, activity, and main stores
Reverse proxy services REST client

Full Release Notes

## Release Notes for v0.66.1

### What's New
#### Client Improvements
- Fixed **server mutex being held across `waitForUp` in `Up()`**, preventing potential blocking behavior.  
  [#5460](https://github.com/netbirdio/netbird/pull/5460)
- Fixed **close-of-closed-channel panic** in `ConnectClient` retry loop.  
  [#5470](https://github.com/netbirdio/netbird/pull/5470)
- Fixed **deadlock in route peer status watcher**.  
  [#5489](https://github.com/netbirdio/netbird/pull/5489)
- Fixed **profile config directory permissions**.  
  [#5457](https://github.com/netbirdio/netbird/pull/5457)
- Lowered socket auto-discovery log level from **Info to Debug**.  
  [#5463](https://github.com/netbirdio/netbird/pull/5463)

#### Management Improvements
- Prevented deletion of **groups linked to flow groups**.  
  [#5439](https://github.com/netbirdio/netbird/pull/5439)
- Fixed **user update permission validation**.  
  [#5441](https://github.com/netbirdio/netbird/pull/5441)
- Added **reverse proxy services REST client**.  
  [#5454](https://github.com/netbirdio/netbird/pull/5454)
- Added explicit **target deletion on service removal**.  
  [#5420](https://github.com/netbirdio/netbird/pull/5420)

#### Proxy Improvements
- Flushed buffer immediately to improve **gRPC support**.  
  [#5469](https://github.com/netbirdio/netbird/pull/5469)

#### Self-Hosted Enhancements
- Added support for **Embedded IdP PostgreSQL database**.  
  [#5443](https://github.com/netbirdio/netbird/pull/5443)
- Allowed specifying **SQL file locations** for auth, activity, and main stores.  
  [#5487](https://github.com/netbirdio/netbird/pull/5487)

#### Security
- Upgraded **Alpine Linux** from 3.23.2 to 3.23.3.  
  [#5217](https://github.com/netbirdio/netbird/pull/5217)

### New Contributors
- @artivis made their first contribution in [#5457](https://github.com/netbirdio/netbird/pull/5457)

**Full Changelog**: [v0.66.0...v0.66.1](https://github.com/netbirdio/netbird/compare/v0.66.0...v0.66.1)