The upcoming platform update is scheduled for June 23rd, 2015.
Bundler gets an update with version 1.9.9.
Cassandra has been updated to version 2.1.6.
Git gets and update with version 2.4.3.
io.js is now on version 1.8.2 featuring an improved memory footprint when using TLS.
JRuby gets an update with version 22.214.171.124 which improves compatibility with Ruby 1.9.3.
MongoDB has been updated to version 2.6.10.
MySQL is now on version 5.6.25 with quite a few InnoDB and other bugfixes.
RethinkDB is now on version 2.0.3.
Trying the new platform
You can evaluate the new platform right away by selecting Ubuntu 14.04 LTS v1506 (release candidate) from the Platform section of Project Settings. We encourage you to try it out, so that we can fix the issues you may encounter until the final release on the next Tuesday.
A full list of changes is available in the platform changelog.