I'm writing to communicate an upcoming major change in MediaWiki-Vagrant. In the coming week, I'm going to upgrade the base image from Precise Pangolin to Trusty Tahr, the latest version from Canonical. Trusty integrates many new open-source software components, many of them specifically targeting cloud and virtual environments. You can read more about the release in the release announcement and the release notes:
http://fridge.ubuntu.com/2014/04/17/ubuntu-14-04-trusty-tahr-released/ https://wiki.ubuntu.com/TrustyTahr/ReleaseNotes
This change to MediaWiki-Vagrant anticipates a migration of Wikimedia's application server stack from Precise to Trusty, the groundwork for which is already well underway. (Wikimedia's TechOps team, substantially assisted by volunteer contributors, has completed a migration to Puppet 3, and has made a Trusty image available on Labs).
I hope to keep the migration painless so as to not disrupt the work of those of you who use this stack as your primary development environment. The fact that a similar migration process is underway for Wikimedia's production infrastructure will, I hope, foster increased collaboration across Wikimedia and the broader developer community.