<!-- .. title: Version 2.0.20 released. .. slug: version-2-0-20-released .. date: 2024-10-16 17:11:38 UTC+1 .. tags: Releases .. category: .. link: .. description: .. type: text -->

Version 2.0.20 of Mosquitto has been released. This is a bugfix release.

Broker

• Fix QoS 1 / QoS 2 publish incorrectly returning "no subscribers". Closes #3128.
• Open files with appropriate access on Windows. Closes #3119.
• Don't allow invalid response topic values.
• Fix some strict protocol compliance issues. Closes #3052.

Client library

• Fix cmake build on OS X. Closes #3125.

Build

• Fix build on NetBSD