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 1.25wmf19 (c20f8d3), 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.
A message has been added to note to Special:Block indicating if the IP is already globally blocked. (r58385, bug 20478)
Section edit links have been removed from the edit conflict form. (r58362)
HTMLDiff has been removed from MediaWiki, with developers noting this could be salvaged someday as an extension but currently it is a mostly-broken experimental feature that does not belong in the core code. (r58267, bug 19859)