This is your friendly but final warning that we are replacing Selenium tests written in Ruby with tests in Node.js. There will be no more reminders. Ruby stack will no longer be maintained. For more information see T139740 and T173488.

Extensive documentation is available at mediawiki.org. If you need help with the migration, I am available for pairing and code review (zfilipin in Gerrit, zeljkof in #wikimedia-releng).

To see how to write a test watch Selenium tests in Node.js tech talk (J78).