<!--
.. title: Release candidate 2.1.0rc1 available
.. slug: rc-2.1.0rc1-available
.. date: 2026-01-16 16:21:42 UTC
.. tags: Releases
.. category:
.. link:
.. description:
.. type: text
-->

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](https://mosquitto.org/files/source/mosquitto-2.1.0rc1.tar.gz)
* [Windows 64-bit](https://mosquitto.org/files/binary/win64/mosquitto-2.1.0rc1-install-windows-x64.exe)
* [Windows 32-bit](https://mosquitto.org/files/binary/win32/mosquitto-2.1.0rc1-install-windows-x86.exe)
* [Debian (amd64, armhf)](https://mosquitto.org/files/binary/debian) (note: the final release version will be available in the normal repository)
* [Ubuntu (amd64)](https://mosquitto.org/files/binary/ubuntu) (note: the final release version will be available in the normal repository)
* Snap (amd64): `snap refresh --edge mosquitto` or `snap install --edge mosquitto`
