Latest tech news from the Wikimedia technical community. Please tell other users about these changes. Not all changes will affect you. Translations are available.
You will be able to read but not to edit Wikimedia Commons for 30 minutes on 19 June at 05:00 (UTC). This is to fix a hardware problem. 
Changes later this week
MIDI files can soon be played without the Score extension. You can then add them with [[File:Filename.midi]]. Later override_midi and override_audio will stop working. Instead you will need to add the MIDI file below the music score. 
A new video player will soon replace the old one. You will be able to enable it as a beta feature in your preferences. It will later be enabled for everyone if there are no big problems. 
The new version of MediaWiki will be on test wikis and MediaWiki.org from 18 June. It will be on non-Wikipedia wikis and some Wikipedias from 19 June. It will be on all wikis from 20 June (calendar).
You can join the technical advice meeting on IRC. During the meeting, volunteer developers can ask for advice. The meeting will be on 19 June at 15:00 (UTC). See how to join.
Some gadgets and user scripts still use the old wgEnableAPI and wgEnableWriteAPI values. These values are always true. They will soon be removed. This might break the gadgets and scripts. You should fix your gadgets to not use these values.