interpret repo#name url syntax as branch instead of revision Previously, the name part of an repo#name url was interpreted as a revision, similar to using the --rev option. Now it is instead looked up as a branch first, and if that succeeds all the heads of the branch will be processed instead of just its tip-most head. If the branch lookup fails, it will be assumed to be an revision as before (e.g. for tags).

dispatch: provide help for disabled extensions and commands Before a command is declared unknown, each extension in hgext is searched, starting with hgext.<cmdname>. If there's a matching command, a help message suggests the appropriate extension and how to enable it. Every extension could potentially be imported, but for cases like rebase, relink, etc. only one extension is imported. For the case of "hg help disabledext", if the extension is in hgext, the extension description is read and a similar help suggestion is printed. No extension import occurs.

extensions: refactor disabled()