[[!comment format=mdwn username="yarikoptic" avatar="http://cdn.libravatar.org/avatar/f11e9c84cb18d26a1748c33b48c924b4" subject="comment 21" date="2018-02-07T20:01:53Z" content=""" Ok, gotcha. Shouldn't then EXTENSION entries also be somehow versioned per each one of them? or if needed a new extension would be born by appending a version to its name (e.g. as with all those imap, imap2, imap3, ... ;-)) """]]