This is a summary of recent technology and site configuration changes that affect the English Wikipedia. This past week, developers updated the live code on Wikimedia sites to 1.15alpha r48811 (see change log), which means that a number of bug fixes and new features previously mentioned are now live.
Please note that some bug fixes or new features described below have not yet gone live as of press time; the English Wikipedia is currently running version 1.44.0-wmf.2 (8fd6c9c), 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.