diff -r 15299bfd0813 -r c39afce52e31 hgext/evolve.py
--- a/hgext/evolve.py	Wed Nov 21 00:18:41 2012 +0100
+++ b/hgext/evolve.py	Wed Nov 21 11:37:30 2012 +0100
@@ -19,7 +19,7 @@
     - improves some aspect of the early implementation in 2.3
 '''
 
-testedwith = '2.4-rc'
+testedwith = ''
 buglink = 'https://bitbucket.org/marmoute/mutable-history/issues'
 
 
@@ -29,11 +29,14 @@
 
 try:
     from mercurial import obsolete
-    getattr(obsolete, 'getrevs') # 2.4 specific
     if not obsolete._enabled:
         obsolete._enabled = True
+    from mercurial import bookmarks
+    bookmarks.bmstore
 except (ImportError, AttributeError):
-    raise util.Abort('Evolve extension requires Mercurial 2.4 (or later)')
+    raise util.Abort('This version of Evolve is too old for you mercurial version',
+                     hint='requires version >> 2.4.x')
+
 
 
 from mercurial import bookmarks
@@ -1499,7 +1502,7 @@
     [('A', 'addremove', None,
      _('mark new/missing files as added/removed before committing')),
     ('n', 'note', '', _('use text as commit message for this update')),
-    ('c', 'change', '', _('specifies the changesets to amend'), _('REV')),
+    ('c', 'change', '', _('specifies the changesets to amend (DEPRECATED)'), _('REV')),
     ('e', 'edit', False, _('invoke editor on commit messages')),
     ] + walkopts + commitopts + commitopts2,
     _('[OPTION]... [FILE]...'))