Version 2 0 18 Released

<!-- .. title: Version 2.0.18 released. .. slug: version-2-0-18-released .. date: 2023-09-18 22:18:38 UTC+1 .. tags: Releases .. category: .. link: .. description: .. type: text -->

Version 2.0.18 of Mosquitto has been released. This is a bugfix release.

Broker:

• Fix crash on subscribe under certain unlikely conditions. Closes #2885. Closes #2881.

Clients:

• Fix mosquitto_rr not honouring -R. Closes #2893.