--- a/mercurial/configitems.py	Mon Jan 24 11:49:06 2022 +0100
+++ b/mercurial/configitems.py	Tue Feb 01 16:36:20 2022 +0100
@@ -1306,9 +1306,10 @@
     # Enable this dirstate format *when creating a new repository*.
     # Which format to use for existing repos is controlled by .hg/requires
     b'format',
-    b'exp-rc-dirstate-v2',
+    b'use-dirstate-v2',
     default=False,
     experimental=True,
+    alias=[(b'format', b'exp-rc-dirstate-v2')],
 )
 coreconfigitem(
     b'format',
@@ -1880,7 +1881,7 @@
     default=b'skip',
     experimental=True,
 )
-# experimental as long as format.exp-rc-dirstate-v2 is.
+# experimental as long as format.use-dirstate-v2 is.
 coreconfigitem(
     b'storage',
     b'dirstate-v2.slow-path',

--- a/mercurial/helptext/config.txt	Mon Jan 24 11:49:06 2022 +0100
+++ b/mercurial/helptext/config.txt	Tue Feb 01 16:36:20 2022 +0100
@@ -892,7 +892,7 @@
 
     Enabled by default.
 
-``exp-rc-dirstate-v2``
+``use-dirstate-v2``
     Enable or disable the experimental "dirstate-v2" feature. The dirstate
     functionality is shared by all commands interacting with the working copy.
     The new version is more robust, faster and stores more information.
@@ -916,7 +916,7 @@
 
     $ hg debugupgraderepo \
           --run \
-          --config format.exp-rc-dirstate-v2=False \
+          --config format.use-dirstate-v2=False \
           --config storage.dirstate-v2.slow-path=allow
 
     For a more comprehensive guide, see :hg:`help internals.dirstate-v2`.

--- a/mercurial/helptext/internals/dirstate-v2.txt	Mon Jan 24 11:49:06 2022 +0100
+++ b/mercurial/helptext/internals/dirstate-v2.txt	Tue Feb 01 16:36:20 2022 +0100
@@ -37,12 +37,12 @@
 ------------------------------------------------
 
 When creating a new local repository such as with `hg init` or `hg clone`,
-the `exp-rc-dirstate-v2` boolean in the `format` configuration section
+the `use-dirstate-v2` boolean in the `format` configuration section
 controls whether to use this file format.
 This is disabled by default as of this writing.
 To enable it for a single repository, run for example::
 
-    $ hg init my-project --config format.exp-rc-dirstate-v2=1
+    $ hg init my-project --config format.use-dirstate-v2=1
 
 Checking the format of an existing local repository
 --------------------------------------------------
@@ -63,15 +63,15 @@
 The `debugupgrade` command does various upgrades or downgrades
 on a local repository
 based on the current Mercurial version and on configuration.
-The same `format.exp-rc-dirstate-v2` configuration is used again.
+The same `format.use-dirstate-v2` configuration is used again.
 
 Example to upgrade::
 
-    $ hg debugupgrade --config format.exp-rc-dirstate-v2=1
+    $ hg debugupgrade --config format.use-dirstate-v2=1
 
 Example to downgrade to `dirstate-v1`::
 
-    $ hg debugupgrade --config format.exp-rc-dirstate-v2=0
+    $ hg debugupgrade --config format.use-dirstate-v2=0
 
 Both of this commands do nothing but print a list of proposed changes,
 which may include changes unrelated to the dirstate.

--- a/mercurial/helptext/rust.txt	Mon Jan 24 11:49:06 2022 +0100
+++ b/mercurial/helptext/rust.txt	Tue Feb 01 16:36:20 2022 +0100
@@ -19,7 +19,7 @@
     - discovery of differences between repositories (pull/push)
     - nodemap (see :hg:`help config.format.use-persistent-nodemap`)
     - all commands using the dirstate (status, commit, diff, add, update, etc.)
-    - dirstate-v2 (see :hg:`help config.format.exp-rc-dirstate-v2`)
+    - dirstate-v2 (see :hg:`help config.format.use-dirstate-v2`)
     - iteration over ancestors in a graph
 
 More features are in the works, and improvements on the above listed are still

--- a/mercurial/localrepo.py	Mon Jan 24 11:49:06 2022 +0100
+++ b/mercurial/localrepo.py	Tue Feb 01 16:36:20 2022 +0100
@@ -1189,7 +1189,7 @@
             b"fast implementation."
         )
         hint = _(
-            b"check `hg help config.format.exp-rc-dirstate-v2` " b"for details"
+            b"check `hg help config.format.use-dirstate-v2` " b"for details"
         )
         if not dirstate.HAS_FAST_DIRSTATE_V2:
             if slow_path == b'warn':
@@ -3630,9 +3630,9 @@
         if ui.configbool(b'format', b'sparse-revlog'):
             requirements.add(requirementsmod.SPARSEREVLOG_REQUIREMENT)
 
-    # experimental config: format.exp-rc-dirstate-v2
+    # experimental config: format.use-dirstate-v2
     # Keep this logic in sync with `has_dirstate_v2()` in `tests/hghave.py`
-    if ui.configbool(b'format', b'exp-rc-dirstate-v2'):
+    if ui.configbool(b'format', b'use-dirstate-v2'):
         requirements.add(requirementsmod.DIRSTATE_V2_REQUIREMENT)
 
     # experimental config: format.exp-use-copies-side-data-changeset

--- a/tests/test-basic.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-basic.t	Tue Feb 01 16:36:20 2022 +0100
@@ -6,7 +6,7 @@
   devel.all-warnings=true
   devel.default-date=0 0
   extensions.fsmonitor= (fsmonitor !)
-  format.exp-rc-dirstate-v2=1 (dirstate-v2 !)
+  format.use-dirstate-v2=1 (dirstate-v2 !)
   largefiles.usercache=$TESTTMP/.cache/largefiles
   lfs.usercache=$TESTTMP/.cache/lfs
   ui.slash=True

--- a/tests/test-commandserver.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-commandserver.t	Tue Feb 01 16:36:20 2022 +0100
@@ -218,7 +218,7 @@
   devel.all-warnings=true
   devel.default-date=0 0
   extensions.fsmonitor= (fsmonitor !)
-  format.exp-rc-dirstate-v2=1 (dirstate-v2 !)
+  format.use-dirstate-v2=1 (dirstate-v2 !)
   largefiles.usercache=$TESTTMP/.cache/largefiles
   lfs.usercache=$TESTTMP/.cache/lfs
   ui.slash=True

--- a/tests/test-dirstate-race.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-dirstate-race.t	Tue Feb 01 16:36:20 2022 +0100
@@ -3,7 +3,7 @@
 #if dirstate-v2
   $ cat >> $HGRCPATH << EOF
   > [format]
-  > exp-rc-dirstate-v2=1
+  > use-dirstate-v2=1
   > [storage]
   > dirstate-v2.slow-path=allow
   > EOF

--- a/tests/test-dirstate-race2.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-dirstate-race2.t	Tue Feb 01 16:36:20 2022 +0100
@@ -3,7 +3,7 @@
 #if dirstate-v2
   $ cat >> $HGRCPATH << EOF
   > [format]
-  > exp-rc-dirstate-v2=1
+  > use-dirstate-v2=1
   > [storage]
   > dirstate-v2.slow-path=allow
   > EOF

--- a/tests/test-dirstate.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-dirstate.t	Tue Feb 01 16:36:20 2022 +0100
@@ -3,7 +3,7 @@
 #if dirstate-v2
   $ cat >> $HGRCPATH << EOF
   > [format]
-  > exp-rc-dirstate-v2=1
+  > use-dirstate-v2=1
   > [storage]
   > dirstate-v2.slow-path=allow
   > EOF

--- a/tests/test-help.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-help.t	Tue Feb 01 16:36:20 2022 +0100
@@ -1585,7 +1585,7 @@
   
       "usefncache"
   
-      "exp-rc-dirstate-v2"
+      "use-dirstate-v2"
   
       "use-persistent-nodemap"
   

--- a/tests/test-hgignore.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-hgignore.t	Tue Feb 01 16:36:20 2022 +0100
@@ -3,7 +3,7 @@
 #if dirstate-v2
   $ cat >> $HGRCPATH << EOF
   > [format]
-  > exp-rc-dirstate-v2=1
+  > use-dirstate-v2=1
   > [storage]
   > dirstate-v2.slow-path=allow
   > EOF

--- a/tests/test-permissions.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-permissions.t	Tue Feb 01 16:36:20 2022 +0100
@@ -5,7 +5,7 @@
 #if dirstate-v2
   $ cat >> $HGRCPATH << EOF
   > [format]
-  > exp-rc-dirstate-v2=1
+  > use-dirstate-v2=1
   > [storage]
   > dirstate-v2.slow-path=allow
   > EOF

--- a/tests/test-persistent-nodemap.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-persistent-nodemap.t	Tue Feb 01 16:36:20 2022 +0100
@@ -800,7 +800,7 @@
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-zstd no-dirstate-v2 !)
      preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd no-dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd dirstate-v2 !)
      removed: persistent-nodemap
   
   processed revlogs:
@@ -844,7 +844,7 @@
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-zstd no-dirstate-v2 !)
      preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd no-dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd dirstate-v2 !)
      added: persistent-nodemap
   
   processed revlogs:
@@ -876,7 +876,7 @@
   requirements
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlogv1, share-safe, sparserevlog, store (no-zstd no-dirstate-v2 !)
      preserved: dotencode, fncache, generaldelta, persistent-nodemap, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd no-dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, persistent-nodemap, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, persistent-nodemap, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd dirstate-v2 !)
   
   optimisations: re-delta-all
   

--- a/tests/test-purge.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-purge.t	Tue Feb 01 16:36:20 2022 +0100
@@ -3,7 +3,7 @@
 #if dirstate-v2
   $ cat >> $HGRCPATH << EOF
   > [format]
-  > exp-rc-dirstate-v2=1
+  > use-dirstate-v2=1
   > [storage]
   > dirstate-v2.slow-path=allow
   > EOF

--- a/tests/test-share-safe.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-share-safe.t	Tue Feb 01 16:36:20 2022 +0100
@@ -225,7 +225,7 @@
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (dirstate-v2 !)
      added: revlog-compression-zstd
   
   processed revlogs:
@@ -253,8 +253,8 @@
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-zstd no-dirstate-v2 !)
      preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd no-dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-zstd dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, share-safe, sparserevlog, store (no-zstd dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlog-compression-zstd, revlogv1, share-safe, sparserevlog, store (zstd dirstate-v2 !)
      added: persistent-nodemap
   
   processed revlogs:
@@ -360,7 +360,7 @@
   $ hg debugupgraderepo -q
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)
      added: share-safe
   
   processed revlogs:
@@ -373,7 +373,7 @@
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)
      added: share-safe
   
   share-safe
@@ -454,7 +454,7 @@
   $ hg debugupgraderepo -q
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)
      removed: share-safe
   
   processed revlogs:
@@ -467,7 +467,7 @@
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)
      removed: share-safe
   
   processed revlogs:
@@ -553,7 +553,7 @@
   
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-dirstate-v2 !)
-     preserved: dotencode, exp-rc-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)
+     preserved: dotencode, use-dirstate-v2, fncache, generaldelta, revlogv1, sparserevlog, store (dirstate-v2 !)
      added: share-safe
   
   processed revlogs:

--- a/tests/test-status.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-status.t	Tue Feb 01 16:36:20 2022 +0100
@@ -3,7 +3,7 @@
 #if dirstate-v2
   $ cat >> $HGRCPATH << EOF
   > [format]
-  > exp-rc-dirstate-v2=1
+  > use-dirstate-v2=1
   > [storage]
   > dirstate-v2.slow-path=allow
   > EOF

--- a/tests/test-stream-bundle-v2.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-stream-bundle-v2.t	Tue Feb 01 16:36:20 2022 +0100
@@ -48,12 +48,12 @@
   stream2 -- {bytecount: 1693, filecount: 11, requirements: dotencode%2Cfncache%2Cgeneraldelta%2Crevlogv1%2Csparserevlog%2Cstore} (mandatory: True) (no-zstd !)
   stream2 -- {bytecount: 1693, filecount: 11, requirements: dotencode%2Cfncache%2Cgeneraldelta%2Crevlog-compression-zstd%2Crevlogv1%2Csparserevlog%2Cstore} (mandatory: True) (zstd no-rust !)
   stream2 -- {bytecount: 1693, filecount: 11, requirements: dotencode%2Cfncache%2Cgeneraldelta%2Cpersistent-nodemap%2Crevlog-compression-zstd%2Crevlogv1%2Csparserevlog%2Cstore} (mandatory: True) (rust no-dirstate-v2 !)
-  stream2 -- {bytecount: 1693, filecount: 11, requirements: dotencode%2Cexp-rc-dirstate-v2%2Cfncache%2Cgeneraldelta%2Cpersistent-nodemap%2Crevlog-compression-zstd%2Crevlogv1%2Csparserevlog%2Cstore} (mandatory: True) (dirstate-v2 !)
+  stream2 -- {bytecount: 1693, filecount: 11, requirements: dotencode%2Cuse-dirstate-v2%2Cfncache%2Cgeneraldelta%2Cpersistent-nodemap%2Crevlog-compression-zstd%2Crevlogv1%2Csparserevlog%2Cstore} (mandatory: True) (dirstate-v2 !)
   $ hg debugbundle --spec bundle.hg
   none-v2;stream=v2;requirements%3Ddotencode%2Cfncache%2Cgeneraldelta%2Crevlogv1%2Csparserevlog%2Cstore (no-zstd !)
   none-v2;stream=v2;requirements%3Ddotencode%2Cfncache%2Cgeneraldelta%2Crevlog-compression-zstd%2Crevlogv1%2Csparserevlog%2Cstore (zstd no-rust !)
   none-v2;stream=v2;requirements%3Ddotencode%2Cfncache%2Cgeneraldelta%2Cpersistent-nodemap%2Crevlog-compression-zstd%2Crevlogv1%2Csparserevlog%2Cstore (rust no-dirstate-v2 !)
-  none-v2;stream=v2;requirements%3Ddotencode%2Cexp-rc-dirstate-v2%2Cfncache%2Cgeneraldelta%2Cpersistent-nodemap%2Crevlog-compression-zstd%2Crevlogv1%2Csparserevlog%2Cstore (dirstate-v2 !)
+  none-v2;stream=v2;requirements%3Ddotencode%2Cuse-dirstate-v2%2Cfncache%2Cgeneraldelta%2Cpersistent-nodemap%2Crevlog-compression-zstd%2Crevlogv1%2Csparserevlog%2Cstore (dirstate-v2 !)
 
 Test that we can apply the bundle as a stream clone bundle
 

--- a/tests/test-symlinks.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-symlinks.t	Tue Feb 01 16:36:20 2022 +0100
@@ -5,7 +5,7 @@
 #if dirstate-v2
   $ cat >> $HGRCPATH << EOF
   > [format]
-  > exp-rc-dirstate-v2=1
+  > use-dirstate-v2=1
   > [storage]
   > dirstate-v2.slow-path=allow
   > EOF

--- a/tests/test-upgrade-repo.t	Mon Jan 24 11:49:06 2022 +0100
+++ b/tests/test-upgrade-repo.t	Tue Feb 01 16:36:20 2022 +0100
@@ -1645,9 +1645,9 @@
 
 Upgrade to dirstate-v2
 
-  $ hg debugformat -v --config format.exp-rc-dirstate-v2=1 | grep dirstate-v2
+  $ hg debugformat -v --config format.use-dirstate-v2=1 | grep dirstate-v2
   dirstate-v2:         no    yes      no
-  $ hg debugupgraderepo --config format.exp-rc-dirstate-v2=1 --run
+  $ hg debugupgraderepo --config format.use-dirstate-v2=1 --run
   upgrade will perform the following actions:
   
   requirements
@@ -1707,14 +1707,14 @@
 dirstate-v2: upgrade and downgrade from and empty repository:
 -------------------------------------------------------------
 
-  $ hg init --config format.exp-rc-dirstate-v2=no dirstate-v2-empty
+  $ hg init --config format.use-dirstate-v2=no dirstate-v2-empty
   $ cd dirstate-v2-empty
   $ hg debugformat | grep dirstate-v2
   dirstate-v2:         no
 
 upgrade
 
-  $ hg debugupgraderepo --run --config format.exp-rc-dirstate-v2=yes
+  $ hg debugupgraderepo --run --config format.use-dirstate-v2=yes
   upgrade will perform the following actions:
   
   requirements
@@ -1741,7 +1741,7 @@
 
 downgrade
 
-  $ hg debugupgraderepo --run --config format.exp-rc-dirstate-v2=no
+  $ hg debugupgraderepo --run --config format.use-dirstate-v2=no
   upgrade will perform the following actions:
   
   requirements