Thread:Talk:Extension default namespaces/Social tools' namespaces/reply (7)

The de-facto "prior agreement" was 0-99 reserved for MediaWiki internal namespaces (of which 0-15 are currently in use) and site-specific namespaces on 100+ since at least 2004 (MW 1.04 was limited to one-byte namespace numbers). In the half-dozen years which followed, many wikis were deployed with site-specific namespaces just above the internal ones or starting at 100+ like the instructions told the site admins to do.

Unless every wiki which deployed "by the book" using 100+ as site-specific is now expected to renumber all of its custom namespaces to some other range (something which we do not have automated tools to do, short of raw SQL UPDATE commands, as a proper namespace editor never did make it into MW 1.7+ core code) there should be no "reservations" of namespaces in this range to extensions. Quite simply, the designation of 100+ as the site-specific range pre-dates the changes to extensions like DPLforum to hard-code them to namespaces (there was nothing special about 110 or any other namespace number in the original 2005-06 implementation of DPLforum, this is a recent addition breaking existing sites).

If you want to "reserve" some block, use one which hasn't been assigned to site-specific namespaces since at least 2004, please.