diff --git a/tests/test-amend.t b/tests/test-amend.t
--- a/tests/test-amend.t
+++ b/tests/test-amend.t
@@ -11,7 +11,7 @@
 #if obsstore-on
   $ cat << EOF >> $HGRCPATH
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
 #endif
 
@@ -176,7 +176,7 @@
 
   $ cat >> $HGRCPATH <<EOF
   > [experimental]
-  > evolution=createmarkers, allowunstable
+  > stabilization=createmarkers, allowunstable
   > EOF
 
   $ hg amend
diff --git a/tests/test-bisect.t b/tests/test-bisect.t
--- a/tests/test-bisect.t
+++ b/tests/test-bisect.t
@@ -574,7 +574,7 @@
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
 
 tip is obsolete
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
@@ -6,7 +6,7 @@
   > [phases]
   > publish=False
   > [experimental]
-  > evolution=createmarkers,exchange
+  > stabilization=createmarkers,exchange
   > EOF
 
 initialize
diff --git a/tests/test-bundle2-exchange.t b/tests/test-bundle2-exchange.t
--- a/tests/test-bundle2-exchange.t
+++ b/tests/test-bundle2-exchange.t
@@ -15,7 +15,7 @@
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
-  > evolution=createmarkers,exchange
+  > stabilization=createmarkers,exchange
   > bundle2-output-capture=True
   > [ui]
   > ssh="$PYTHON" "$TESTDIR/dummyssh"
diff --git a/tests/test-bundle2-format.t b/tests/test-bundle2-format.t
--- a/tests/test-bundle2-format.t
+++ b/tests/test-bundle2-format.t
@@ -227,7 +227,7 @@
   > [extensions]
   > bundle2=$TESTTMP/bundle2.py
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > [ui]
   > ssh=$PYTHON "$TESTDIR/dummyssh"
   > logtemplate={rev}:{node|short} {phase} {author} {bookmarks} {desc|firstline}
diff --git a/tests/test-cache-abuse.t b/tests/test-cache-abuse.t
--- a/tests/test-cache-abuse.t
+++ b/tests/test-cache-abuse.t
@@ -2,7 +2,7 @@
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > [phases]
   > publish=False
   > EOF
diff --git a/tests/test-clone.t b/tests/test-clone.t
--- a/tests/test-clone.t
+++ b/tests/test-clone.t
@@ -706,7 +706,7 @@
   $ cd filteredrev0
   $ cat >> .hg/hgrc << EOF
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
   $ echo initial1 > foo
   $ hg -q commit -A -m initial0
diff --git a/tests/test-command-template.t b/tests/test-command-template.t
--- a/tests/test-command-template.t
+++ b/tests/test-command-template.t
@@ -3567,7 +3567,7 @@
   $ cd hashcollision
   $ cat <<EOF >> .hg/hgrc
   > [experimental]
-  > evolution = createmarkers
+  > stabilization = createmarkers
   > EOF
   $ echo 0 > a
   $ hg ci -qAm 0
diff --git a/tests/test-commandserver.t b/tests/test-commandserver.t
--- a/tests/test-commandserver.t
+++ b/tests/test-commandserver.t
@@ -497,7 +497,7 @@
 
   $ cat >> .hg/hgrc << EOF
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
 
   >>> import os
diff --git a/tests/test-commit-amend.t b/tests/test-commit-amend.t
--- a/tests/test-commit-amend.t
+++ b/tests/test-commit-amend.t
@@ -520,7 +520,7 @@
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
-  > evolution=createmarkers,allowunstable
+  > stabilization=createmarkers,allowunstable
   > EOF
 
 Amend with no files changes
diff --git a/tests/test-drawdag.t b/tests/test-drawdag.t
--- a/tests/test-drawdag.t
+++ b/tests/test-drawdag.t
@@ -2,7 +2,7 @@
   > [extensions]
   > drawdag=$TESTDIR/drawdag.py
   > [experimental]
-  > evolution=all
+  > stabilization=all
   > EOF
 
   $ reinit () {
diff --git a/tests/test-glog.t b/tests/test-glog.t
--- a/tests/test-glog.t
+++ b/tests/test-glog.t
@@ -2290,7 +2290,7 @@
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
 
   $ hg debugobsolete `hg id --debug -i -r 8`
diff --git a/tests/test-histedit-arguments.t b/tests/test-histedit-arguments.t
--- a/tests/test-histedit-arguments.t
+++ b/tests/test-histedit-arguments.t
@@ -494,7 +494,7 @@
 
   $ cat >>$HGRCPATH <<EOF
   > [experimental]
-  > evolution=createmarkers,allowunstable
+  > stabilization=createmarkers,allowunstable
   > EOF
   $ hg commit --amend -m 'allow this fold'
   $ hg histedit --continue
diff --git a/tests/test-histedit-obsolete.t b/tests/test-histedit-obsolete.t
--- a/tests/test-histedit-obsolete.t
+++ b/tests/test-histedit-obsolete.t
@@ -8,7 +8,7 @@
   > [phases]
   > publish=False
   > [experimental]
-  > evolution=createmarkers,allowunstable
+  > stabilization=createmarkers,allowunstable
   > [extensions]
   > histedit=
   > rebase=
@@ -545,7 +545,7 @@
   |
   o  0:cb9a9f314b8b (public) a
   
-  $ hg histedit -r 'b449568bf7fc' --commands - << EOF --config experimental.evolution.track-operation=1
+  $ hg histedit -r 'b449568bf7fc' --commands - << EOF --config experimental.stabilization.track-operation=1
   > pick b449568bf7fc 13 f
   > pick 7395e1ff83bd 15 h
   > pick 6b70183d2492 14 g
@@ -556,7 +556,7 @@
   Editing (ee118ab9fa44), you may commit or record as needed now.
   (hg histedit --continue to resume)
   [1]
-  $ hg histedit --continue --config experimental.evolution.track-operation=1
+  $ hg histedit --continue --config experimental.stabilization.track-operation=1
   $ hg log -G
   @  23:175d6b286a22 (secret) k
   |
diff --git a/tests/test-lfconvert.t b/tests/test-lfconvert.t
--- a/tests/test-lfconvert.t
+++ b/tests/test-lfconvert.t
@@ -326,7 +326,7 @@
   $ cd largefiles-repo-hg
   $ cat >> .hg/hgrc <<EOF
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
   $ hg debugobsolete `hg log -r tip -T "{node}"`
   obsoleted 1 changesets
diff --git a/tests/test-log.t b/tests/test-log.t
--- a/tests/test-log.t
+++ b/tests/test-log.t
@@ -1700,7 +1700,7 @@
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
 
   $ hg log --template='{rev}:{node}\n'
@@ -2280,7 +2280,7 @@
   $ hg init issue4490
   $ cd issue4490
   $ echo '[experimental]' >> .hg/hgrc
-  $ echo 'evolution=createmarkers' >> .hg/hgrc
+  $ echo 'stabilization=createmarkers' >> .hg/hgrc
   $ echo a > a
   $ hg ci -Am0
   adding a
diff --git a/tests/test-obsmarker-template.t b/tests/test-obsmarker-template.t
--- a/tests/test-obsmarker-template.t
+++ b/tests/test-obsmarker-template.t
@@ -10,7 +10,7 @@
   > [phases]
   > publish=False
   > [experimental]
-  > evolution=all
+  > stabilization=all
   > [alias]
   > tlog = log -G -T '{node|short}\
   >     {if(predecessors, "\n  Predecessors: {predecessors}")}\
diff --git a/tests/test-obsolete-bundle-strip.t b/tests/test-obsolete-bundle-strip.t
--- a/tests/test-obsolete-bundle-strip.t
+++ b/tests/test-obsolete-bundle-strip.t
@@ -15,10 +15,10 @@
   > 
   > [experimental]
   > # enable evolution
-  > evolution = all
+  > stabilization = all
   > 
   > # include obsmarkers in bundle
-  > evolution.bundle-obsmarker = yes
+  > stabilization.bundle-obsmarker = yes
   > 
   > [extensions]
   > # needed for some tests
diff --git a/tests/test-obsolete-changeset-exchange.t b/tests/test-obsolete-changeset-exchange.t
--- a/tests/test-obsolete-changeset-exchange.t
+++ b/tests/test-obsolete-changeset-exchange.t
@@ -3,7 +3,7 @@
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
 
 Push does not corrupt remote
@@ -87,7 +87,7 @@
 
 check-that bundle can contain markers:
 
-  $ hg bundle --hidden --rev f89bcc95eba5 --base "f89bcc95eba5^" ../f89bcc95eba5-obs.hg --config experimental.evolution.bundle-obsmarker=1
+  $ hg bundle --hidden --rev f89bcc95eba5 --base "f89bcc95eba5^" ../f89bcc95eba5-obs.hg --config experimental.stabilization.bundle-obsmarker=1
   1 changesets found
   $ hg debugbundle ../f89bcc95eba5.hg
   Stream params: sortdict([('Compression', 'BZ')])
diff --git a/tests/test-obsolete-checkheads.t b/tests/test-obsolete-checkheads.t
--- a/tests/test-obsolete-checkheads.t
+++ b/tests/test-obsolete-checkheads.t
@@ -6,7 +6,7 @@
   > [ui]
   > logtemplate='{node|short} ({phase}) {desc|firstline}\n'
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
   $ mkcommit() {
   >    echo "$1" > "$1"
diff --git a/tests/test-obsolete-divergent.t b/tests/test-obsolete-divergent.t
--- a/tests/test-obsolete-divergent.t
+++ b/tests/test-obsolete-divergent.t
@@ -9,7 +9,7 @@
   > [ui]
   > logtemplate = {rev}:{node|short} {desc}\n
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > [extensions]
   > drawdag=$TESTDIR/drawdag.py
   > [alias]
diff --git a/tests/test-obsolete-tag-cache.t b/tests/test-obsolete-tag-cache.t
--- a/tests/test-obsolete-tag-cache.t
+++ b/tests/test-obsolete-tag-cache.t
@@ -5,7 +5,7 @@
   > mock=$TESTDIR/mockblackbox.py
   > 
   > [experimental]
-  > evolution = createmarkers
+  > stabilization = createmarkers
   > EOF
 
 Create a repo with some tags
diff --git a/tests/test-obsolete.t b/tests/test-obsolete.t
--- a/tests/test-obsolete.t
+++ b/tests/test-obsolete.t
@@ -39,7 +39,7 @@
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
-  > evolution=createmarkers,exchange
+  > stabilization=createmarkers,exchange
   > EOF
 
 Killing a single changeset without replacement
@@ -892,7 +892,7 @@
 Checking _enable=False warning if obsolete marker exists
 
   $ echo '[experimental]' >> $HGRCPATH
-  $ echo "evolution=" >> $HGRCPATH
+  $ echo "stabilization=" >> $HGRCPATH
   $ hg log -r tip
   obsolete feature not enabled but 68 markers found!
   68:c15e9edfca13 (draft) [tip ] add celestine
@@ -900,7 +900,7 @@
 reenable for later test
 
   $ echo '[experimental]' >> $HGRCPATH
-  $ echo "evolution=createmarkers,exchange" >> $HGRCPATH
+  $ echo "stabilization=createmarkers,exchange" >> $HGRCPATH
 
   $ rm hg.pid access.log errors.log
 #endif
@@ -1263,7 +1263,7 @@
   $ hg ci -m '2'
 
   $ echo bar > f2
-  $ hg commit --amend --config experimetnal.evolution=createmarkers
+  $ hg commit --amend --config experimetnal.stabilization=createmarkers
   $ hg log -G
   @  4:b0551702f918 (draft) [tip ] 2
   |
@@ -1402,7 +1402,7 @@
   $ echo d > d
   $ hg ci -Am d
   adding d
-  $ hg ci --amend -m dd --config experimental.evolution.track-operation=1
+  $ hg ci --amend -m dd --config experimental.stabilization.track-operation=1
   $ hg debugobsolete --index --rev "3+7"
   1 6fdef60fcbabbd3d50e9b9cbc2a240724b91a5e1 d27fb9b066076fd921277a4b9e8b9cb48c95bc6a 0 \(.*\) {'user': 'test'} (re)
   3 4715cf767440ed891755448016c2b8cf70760c30 7ae79c5d60f049c7b0dd02f5f25b9d60aaf7b36d 0 \(.*\) {'operation': 'amend', 'user': 'test'} (re)
diff --git a/tests/test-phases.t b/tests/test-phases.t
--- a/tests/test-phases.t
+++ b/tests/test-phases.t
@@ -588,7 +588,7 @@
 (enabling evolution)
   $ cat >> $HGRCPATH << EOF
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
 
 (making a changeset hidden; H in that case)
diff --git a/tests/test-push-race.t b/tests/test-push-race.t
--- a/tests/test-push-race.t
+++ b/tests/test-push-race.t
@@ -98,7 +98,7 @@
   > [phases]
   > publish = no
   > [experimental]
-  > evolution = all
+  > stabilization = all
   > [alias]
   > graph = log -G --rev 'sort(all(), "topo")'
   > EOF
diff --git a/tests/test-rebase-conflicts.t b/tests/test-rebase-conflicts.t
--- a/tests/test-rebase-conflicts.t
+++ b/tests/test-rebase-conflicts.t
@@ -400,7 +400,7 @@
   $ hg update E -q
   $ echo 3 > B
   $ hg commit --amend -m E -A B -q
-  $ hg rebase -r B+D -d . --config experimental.evolution=all
+  $ hg rebase -r B+D -d . --config experimental.stabilization=all
   rebasing 1:112478962961 "B" (B)
   merging B
   warning: conflicts while merging B! (edit, then use 'hg resolve --mark')
@@ -411,7 +411,7 @@
   $ hg resolve -m
   (no more unresolved files)
   continue: hg rebase --continue
-  $ hg rebase --continue --config experimental.evolution=none
+  $ hg rebase --continue --config experimental.stabilization=none
   rebasing 1:112478962961 "B" (B)
   not rebasing ignored 2:26805aba1e60 "C" (C)
   rebasing 3:f585351a92f8 "D" (D)
diff --git a/tests/test-rebase-obsolete.t b/tests/test-rebase-obsolete.t
--- a/tests/test-rebase-obsolete.t
+++ b/tests/test-rebase-obsolete.t
@@ -8,7 +8,7 @@
   > [ui]
   > logtemplate= {rev}:{node|short} {desc|firstline}
   > [experimental]
-  > evolution=createmarkers,allowunstable
+  > stabilization=createmarkers,allowunstable
   > [phases]
   > publish=False
   > [extensions]
@@ -732,7 +732,7 @@
   |
   o  0:4a2df7238c3b A
   
-  $ hg debugobsolete `hg log -r 7 -T '{node}\n'` --config experimental.evolution=all
+  $ hg debugobsolete `hg log -r 7 -T '{node}\n'` --config experimental.stabilization=all
   obsoleted 1 changesets
   $ hg rebase -d 6 -r "4::"
   rebasing 4:ff2c4d47b71d "C"
@@ -760,7 +760,7 @@
   $ hg add nonrelevant
   $ hg commit -m nonrelevant
   created new head
-  $ hg debugobsolete `hg log -r 11 -T '{node}\n'` --config experimental.evolution=all
+  $ hg debugobsolete `hg log -r 11 -T '{node}\n'` --config experimental.stabilization=all
   obsoleted 1 changesets
   $ hg rebase -r . -d 10
   note: not rebasing 11:f44da1f4954c "nonrelevant" (tip), it has no successor
@@ -885,7 +885,7 @@
   $ printf "dummy" > L
   $ hg add L
   $ hg commit -m "dummy change"
-  $ hg debugobsolete `hg log -r ".^" -T '{node}'` `hg log -r 19 -T '{node}'` --config experimental.evolution=all
+  $ hg debugobsolete `hg log -r ".^" -T '{node}'` `hg log -r 19 -T '{node}'` --config experimental.stabilization=all
   obsoleted 1 changesets
 
   $ hg log -G -r 17::
@@ -1121,7 +1121,7 @@
 equivalents in destination
   $ hg init rbsrepo && cd rbsrepo
   $ echo "[experimental]" > .hg/hgrc
-  $ echo "evolution=all" >> .hg/hgrc
+  $ echo "stabilization=all" >> .hg/hgrc
   $ echo "rebaseskipobsolete=on" >> .hg/hgrc
   $ echo root > root && hg ci -Am root
   adding root
@@ -1140,7 +1140,7 @@
   $ hg up 2 && hg log -r .  # working dir is at rev 2 again
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   2:1e9a3c00cbe9 b (no-eol)
-  $ hg rebase -r 2 -d 3 --config experimental.evolution.track-operation=1
+  $ hg rebase -r 2 -d 3 --config experimental.stabilization.track-operation=1
   note: not rebasing 2:1e9a3c00cbe9 "b" (mybook), already in destination as 3:be1832deae9a "b"
 Check that working directory was updated to rev 3 although rev 2 was skipped
 during the rebase operation
diff --git a/tests/test-rebase-partial.t b/tests/test-rebase-partial.t
--- a/tests/test-rebase-partial.t
+++ b/tests/test-rebase-partial.t
@@ -7,7 +7,7 @@
   > drawdag=$TESTDIR/drawdag.py
   > 
   > [experimental]
-  > evolution=createmarkers,allowunstable
+  > stabilization=createmarkers,allowunstable
   > 
   > [alias]
   > tglog = log -G --template "{rev}: {desc}"
diff --git a/tests/test-rebase-scenario-global.t b/tests/test-rebase-scenario-global.t
--- a/tests/test-rebase-scenario-global.t
+++ b/tests/test-rebase-scenario-global.t
@@ -933,7 +933,7 @@
   > [extensions]
   > wraprebase=$TESTTMP/wraprebase.py
   > [experimental]
-  > evolution=all
+  > stabilization=all
   > EOF
 
   $ hg debugdrawdag <<'EOS'
diff --git a/tests/test-revset.t b/tests/test-revset.t
--- a/tests/test-revset.t
+++ b/tests/test-revset.t
@@ -1830,7 +1830,7 @@
   $ cd wdir-hashcollision
   $ cat <<EOF >> .hg/hgrc
   > [experimental]
-  > evolution = createmarkers
+  > stabilization = createmarkers
   > EOF
   $ echo 0 > a
   $ hg ci -qAm 0
@@ -4465,7 +4465,7 @@
   $ cd repo1
   $ cat <<EOF >> .hg/hgrc
   > [experimental]
-  > evolution = createmarkers
+  > stabilization = createmarkers
   > EOF
 
   $ hg debugdrawdag <<'EOS'
diff --git a/tests/test-shelve.t b/tests/test-shelve.t
--- a/tests/test-shelve.t
+++ b/tests/test-shelve.t
@@ -696,7 +696,7 @@
 
   $ cat >> $HGRCPATH << EOF
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
   $ hg shelve
   shelved as default
diff --git a/tests/test-strip.t b/tests/test-strip.t
--- a/tests/test-strip.t
+++ b/tests/test-strip.t
@@ -1063,8 +1063,8 @@
   $ cd $TESTTMP/scmutilcleanup.obsstore
   $ cat >> .hg/hgrc <<EOF
   > [experimental]
-  > evolution=all
-  > evolution.track-operation=1
+  > stabilization=all
+  > stabilization.track-operation=1
   > EOF
 
   $ hg log -r . -T '\n' --config extensions.t=$TESTTMP/scmutilcleanup.py
diff --git a/tests/test-subrepo-missing.t b/tests/test-subrepo-missing.t
--- a/tests/test-subrepo-missing.t
+++ b/tests/test-subrepo-missing.t
@@ -76,7 +76,7 @@
   > [phases]
   > publish=False
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
 
 check that we can update parent repo with missing (amended) subrepo revision
diff --git a/tests/test-update-branches.t b/tests/test-update-branches.t
--- a/tests/test-update-branches.t
+++ b/tests/test-update-branches.t
@@ -473,7 +473,7 @@
   > [ui]
   > logtemplate={rev}:{node|short} {desc|firstline}
   > [experimental]
-  > evolution=createmarkers
+  > stabilization=createmarkers
   > EOF
 
 Test no-argument update to a successor of an obsoleted changeset