Deprecation

[ianmcclean]

The deprecation tag for gl.xml is not yet supported, and that makes defining enums and commands for a version with the forward compatibility bit set to true is tough.

[oddhack]

If you would like to propose schema and schema documentation updates to allow <deprecate> blocks similar to <remove> blocks, that would be fine. I don't think we would have that affect the headers we generate, since they aim for maximum backward-compatibility, but I could see it being useful to other consumers of the XML.

[Perksey]

Could just add a type attribute to remove blocks which will accept either “remove” or “deprecate”