The latest Mesos 0.24.1 is now available for download. This release includes a fix for version parsing for Docker 1.8 and 1.7.0.fc22, as well as a fix for Docker command health checks. These same fixes were backported onto 0.23.0 to produce a new Mesos 0.23.1 release. MESOS-2986 was also backported to 0.21 and 0.22 to produce Mesos 0.21.2 and 0.22.2 (still VOTING). All of these releases are (or will be) available on the downloads page.
Full release notes are available in the release CHANGELOG.
Upgrading to 0.24.1 can be done seamlessly on a 0.24.0 cluster. In fact, only the slaves need to be upgraded. If upgrading from an earlier version, please refer to the upgrades documentation.
Special thanks to the lone code contributor for 0.24.1, 0.23.1, 0.22.2, and 0.21.2: haosdent huang. Our hero.