--- a/mercurial/help/internals/extensions.txt Fri Jan 18 23:13:04 2019 -0500
+++ b/mercurial/help/internals/extensions.txt Fri Jan 18 23:22:56 2019 -0500
@@ -313,6 +313,14 @@
buglink = 'https://bitbucket.org/USER/REPO/issues'
+If an extension requires a minimum version of Mercurial, it can be declared
+with the ``minimumhgversion`` variable::
+
+ minimumhgversion = '4.6'
+
+Older clients will print a warning that the extension requires a new version,
+instead of attempting to load it.
+
Wrap up: what belongs where?
============================