User blog comment:Rappy 4187/Technical Update: May 20, 2014/@comment-3247345-20140521071803/@comment-126761-20140521151336

The changes mentioned almost always will go live when the code goes out on Wednesday (generally around late morning in Europe). However, if a change is live earlier than this, we will endeavour to say so.

I do think we have a habit of tense switching though - I'll bring it up with the team.