diff --git a/tests/test-bookmarks-pushpull.t b/tests/test-bookmarks-pushpull.t
--- a/tests/test-bookmarks-pushpull.t
+++ b/tests/test-bookmarks-pushpull.t
@@ -822,7 +822,7 @@ Local push
 Using ssh
 ---------
 
-  $ hg push -B @ ssh --config experimental.bundle2-exp=True
+  $ hg push -B @ ssh # bundle2+
   pushing to ssh://user@dummy/issue4455-dest
   searching for changes
   no changes found
@@ -845,7 +845,7 @@ Using ssh
 Using http
 ----------
 
-  $ hg push -B @ http --config experimental.bundle2-exp=True
+  $ hg push -B @ http # bundle2+
   pushing to http://localhost:$HGPORT/
   searching for changes
   no changes found
diff --git a/tests/test-obsolete.t b/tests/test-obsolete.t
--- a/tests/test-obsolete.t
+++ b/tests/test-obsolete.t
@@ -650,7 +650,7 @@ List of both
 Test the debug output for exchange
 ----------------------------------
 
-  $ hg pull ../tmpb --config 'experimental.obsmarkers-exchange-debug=True' --config 'experimental.bundle2-exp=True'
+  $ hg pull ../tmpb --config 'experimental.obsmarkers-exchange-debug=True' # bundle2
   pulling from ../tmpb
   searching for changes
   no changes found
diff --git a/tests/test-phases-exchange.t b/tests/test-phases-exchange.t
--- a/tests/test-phases-exchange.t
+++ b/tests/test-phases-exchange.t
@@ -1041,7 +1041,7 @@ same over the wire
   $ cat ../beta.pid >> $DAEMON_PIDS
   $ cd ../gamma
 
-  $ hg pull http://localhost:$HGPORT/ --config experimental.bundle2-exp=True
+  $ hg pull http://localhost:$HGPORT/ # bundle2+
   pulling from http://localhost:$HGPORT/
   searching for changes
   no changes found
diff --git a/tests/test-pull-http.t b/tests/test-pull-http.t
--- a/tests/test-pull-http.t
+++ b/tests/test-pull-http.t
@@ -48,7 +48,7 @@ expect error, cloning not allowed
   $ echo 'allowpull = false' >> .hg/hgrc
   $ hg serve -p $HGPORT -d --pid-file=hg.pid -E errors.log
   $ cat hg.pid >> $DAEMON_PIDS
-  $ hg clone http://localhost:$HGPORT/ test4 --config experimental.bundle2-exp=True
+  $ hg clone http://localhost:$HGPORT/ test4 # bundle2+
   requesting all changes
   abort: authorization failed
   [255]
diff --git a/tests/test-push-hook-lock.t b/tests/test-push-hook-lock.t
--- a/tests/test-push-hook-lock.t
+++ b/tests/test-push-hook-lock.t
@@ -38,7 +38,7 @@
 
   $ hg --cwd 1 --config extensions.strip= strip tip -q
   $ hg --cwd 2 --config extensions.strip= strip tip -q
-  $ hg --cwd 3 push ../2 --config experimental.bundle2-exp=True
+  $ hg --cwd 3 push ../2 # bundle2+
   pushing to ../2
   searching for changes
   adding changesets
diff --git a/tests/test-subrepo.t b/tests/test-subrepo.t
--- a/tests/test-subrepo.t
+++ b/tests/test-subrepo.t
@@ -1539,7 +1539,7 @@ Courtesy phases synchronisation to publi
   [1]
 # clean the push cache
   $ rm s/.hg/cache/storehash/*
-  $ hg push --config experimental.bundle2-exp=True
+  $ hg push # bundle2+
   pushing to $TESTTMP/issue3781-dest (glob)
   pushing subrepo s to $TESTTMP/issue3781-dest/s
   searching for changes