This is a summary of recent technology and site configuration changes that affect the English Wikipedia. Some bug fixes or new features described below have not yet gone live as of press time; the English Wikipedia is currently running version 1.25wmf12 (d88cea4), and changes to the software with a version number higher than that will not yet be active. Configuration changes and changes to interface messages, however, become active immediately.
The Squid response limit in MediaWiki is now configurable. (r59178, bug 21551)
Wikimedia Germany has purchased two new database servers for the toolserver, two smaller servers and a disk array. The smaller servers will provide redundancy for the NFS and LDAP, and the database servers will provide redundant access to the MySQL databases.