mosquitto/www/posts/2026/01/rc-2.1.0rc1-available.md

The first release candidate for Mosquitto 2.1.0 is now available for testing. If no release critical issues are reported, this will become 2.1.0 on 2026-01-26.

The source and binary packages are available:

• Source
• Windows 64-bit
• Windows 32-bit
• Debian (amd64, armhf) (note: the final release version will be available in the normal repository)
• Ubuntu (amd64) (note: the final release version will be available in the normal repository)
• Snap (amd64): snap refresh --edge mosquitto or snap install --edge mosquitto