diff -r e83327af26f1 -r c3773636ddbb mercurial/requirements.py
--- a/mercurial/requirements.py	Tue Mar 02 18:51:18 2021 +0100
+++ b/mercurial/requirements.py	Wed Mar 03 12:33:24 2021 +0100
@@ -8,6 +8,7 @@
 from __future__ import absolute_import
 
 GENERALDELTA_REQUIREMENT = b'generaldelta'
+DOTENCODE_REQUIREMENT = b'dotencode'
 
 # When narrowing is finalized and no longer subject to format changes,
 # we should move this to just "narrow" or similar.