diff --git a/mercurial/upgrade.py b/mercurial/upgrade.py
--- a/mercurial/upgrade.py
+++ b/mercurial/upgrade.py
@@ -807,14 +807,14 @@
     if not revcount:
         return
 
-    ui.write(
+    ui.status(
         _(
             b'migrating %d total revisions (%d in filelogs, %d in manifests, '
             b'%d in changelog)\n'
         )
         % (revcount, frevcount, mrevcount, crevcount)
     )
-    ui.write(
+    ui.status(
         _(b'migrating %s in store; %s tracked data\n')
         % ((util.bytecount(srcsize), util.bytecount(srcrawsize)))
     )
@@ -837,7 +837,7 @@
         oldrl = _revlogfrompath(srcrepo, unencoded)
 
         if isinstance(oldrl, changelog.changelog) and b'c' not in seen:
-            ui.write(
+            ui.status(
                 _(
                     b'finished migrating %d manifest revisions across %d '
                     b'manifests; change in size: %s\n'
@@ -845,7 +845,7 @@
                 % (mrevcount, mcount, util.bytecount(mdstsize - msrcsize))
             )
 
-            ui.write(
+            ui.status(
                 _(
                     b'migrating changelog containing %d revisions '
                     b'(%s in store; %s tracked data)\n'
@@ -861,7 +861,7 @@
                 _(b'changelog revisions'), total=crevcount
             )
         elif isinstance(oldrl, manifest.manifestrevlog) and b'm' not in seen:
-            ui.write(
+            ui.status(
                 _(
                     b'finished migrating %d filelog revisions across %d '
                     b'filelogs; change in size: %s\n'
@@ -869,7 +869,7 @@
                 % (frevcount, fcount, util.bytecount(fdstsize - fsrcsize))
             )
 
-            ui.write(
+            ui.status(
                 _(
                     b'migrating %d manifests containing %d revisions '
                     b'(%s in store; %s tracked data)\n'
@@ -888,7 +888,7 @@
                 _(b'manifest revisions'), total=mrevcount
             )
         elif b'f' not in seen:
-            ui.write(
+            ui.status(
                 _(
                     b'migrating %d filelogs containing %d revisions '
                     b'(%s in store; %s tracked data)\n'
@@ -941,7 +941,7 @@
 
     progress.complete()
 
-    ui.write(
+    ui.status(
         _(
             b'finished migrating %d changelog revisions; change in size: '
             b'%s\n'
@@ -949,7 +949,7 @@
         % (crevcount, util.bytecount(cdstsize - csrcsize))
     )
 
-    ui.write(
+    ui.status(
         _(
             b'finished migrating %d total revisions; total change in store '
             b'size: %s\n'
@@ -1013,7 +1013,7 @@
     assert srcrepo.currentwlock()
     assert dstrepo.currentwlock()
 
-    ui.write(
+    ui.status(
         _(
             b'(it is safe to interrupt this process any time before '
             b'data migration completes)\n'
@@ -1048,14 +1048,14 @@
         if not _filterstorefile(srcrepo, dstrepo, requirements, p, kind, st):
             continue
 
-        srcrepo.ui.write(_(b'copying %s\n') % p)
+        srcrepo.ui.status(_(b'copying %s\n') % p)
         src = srcrepo.store.rawvfs.join(p)
         dst = dstrepo.store.rawvfs.join(p)
         util.copyfile(src, dst, copystat=True)
 
     _finishdatamigration(ui, srcrepo, dstrepo, requirements)
 
-    ui.write(_(b'data fully migrated to temporary repository\n'))
+    ui.status(_(b'data fully migrated to temporary repository\n'))
 
     backuppath = pycompat.mkdtemp(prefix=b'upgradebackup.', dir=srcrepo.path)
     backupvfs = vfsmod.vfs(backuppath)
@@ -1067,7 +1067,7 @@
     # as a mechanism to lock out new clients during the data swap. This is
     # better than allowing a client to continue while the repository is in
     # an inconsistent state.
-    ui.write(
+    ui.status(
         _(
             b'marking source repository as being upgraded; clients will be '
             b'unable to read from repository\n'
@@ -1077,18 +1077,18 @@
         srcrepo.vfs, srcrepo.requirements | {b'upgradeinprogress'}
     )
 
-    ui.write(_(b'starting in-place swap of repository data\n'))
-    ui.write(_(b'replaced files will be backed up at %s\n') % backuppath)
+    ui.status(_(b'starting in-place swap of repository data\n'))
+    ui.status(_(b'replaced files will be backed up at %s\n') % backuppath)
 
     # Now swap in the new store directory. Doing it as a rename should make
     # the operation nearly instantaneous and atomic (at least in well-behaved
     # environments).
-    ui.write(_(b'replacing store...\n'))
+    ui.status(_(b'replacing store...\n'))
     tstart = util.timer()
     util.rename(srcrepo.spath, backupvfs.join(b'store'))
     util.rename(dstrepo.spath, srcrepo.spath)
     elapsed = util.timer() - tstart
-    ui.write(
+    ui.status(
         _(
             b'store replacement complete; repository was inconsistent for '
             b'%0.1fs\n'
@@ -1098,7 +1098,7 @@
 
     # We first write the requirements file. Any new requirements will lock
     # out legacy clients.
-    ui.write(
+    ui.status(
         _(
             b'finalizing requirements file and making repository readable '
             b'again\n'
@@ -1287,7 +1287,7 @@
 
     def printupgradeactions():
         for a in actions:
-            ui.write(b'%s\n   %s\n\n' % (a.name, a.upgrademessage))
+            ui.status(b'%s\n   %s\n\n' % (a.name, a.upgrademessage))
 
     if not run:
         fromconfig = []
@@ -1302,35 +1302,35 @@
         if fromconfig or onlydefault:
 
             if fromconfig:
-                ui.write(
+                ui.status(
                     _(
                         b'repository lacks features recommended by '
                         b'current config options:\n\n'
                     )
                 )
                 for i in fromconfig:
-                    ui.write(b'%s\n   %s\n\n' % (i.name, i.description))
+                    ui.status(b'%s\n   %s\n\n' % (i.name, i.description))
 
             if onlydefault:
-                ui.write(
+                ui.status(
                     _(
                         b'repository lacks features used by the default '
                         b'config options:\n\n'
                     )
                 )
                 for i in onlydefault:
-                    ui.write(b'%s\n   %s\n\n' % (i.name, i.description))
+                    ui.status(b'%s\n   %s\n\n' % (i.name, i.description))
 
-            ui.write(b'\n')
+            ui.status(b'\n')
         else:
-            ui.write(
+            ui.status(
                 _(
                     b'(no feature deficiencies found in existing '
                     b'repository)\n'
                 )
             )
 
-        ui.write(
+        ui.status(
             _(
                 b'performing an upgrade with "--run" will make the following '
                 b'changes:\n\n'
@@ -1344,14 +1344,14 @@
         unusedoptimize = [i for i in alloptimizations if i not in actions]
 
         if unusedoptimize:
-            ui.write(
+            ui.status(
                 _(
                     b'additional optimizations are available by specifying '
                     b'"--optimize <name>":\n\n'
                 )
             )
             for i in unusedoptimize:
-                ui.write(_(b'%s\n   %s\n\n') % (i.name, i.description))
+                ui.status(_(b'%s\n   %s\n\n') % (i.name, i.description))
         return
 
     # Else we're in the run=true case.
@@ -1362,9 +1362,9 @@
 
     upgradeactions = [a.name for a in actions]
 
-    ui.write(_(b'beginning upgrade...\n'))
+    ui.status(_(b'beginning upgrade...\n'))
     with repo.wlock(), repo.lock():
-        ui.write(_(b'repository locked and read-only\n'))
+        ui.status(_(b'repository locked and read-only\n'))
         # Our strategy for upgrading the repository is to create a new,
         # temporary repository, write data to it, then do a swap of the
         # data. There are less heavyweight ways to do this, but it is easier
@@ -1373,7 +1373,7 @@
         tmppath = pycompat.mkdtemp(prefix=b'upgrade.', dir=repo.path)
         backuppath = None
         try:
-            ui.write(
+            ui.status(
                 _(
                     b'creating temporary repository to stage migrated '
                     b'data: %s\n'
@@ -1390,15 +1390,17 @@
                     ui, repo, dstrepo, newreqs, upgradeactions, revlogs=revlogs
                 )
             if not (backup or backuppath is None):
-                ui.write(_(b'removing old repository content%s\n') % backuppath)
+                ui.status(
+                    _(b'removing old repository content%s\n') % backuppath
+                )
                 repo.vfs.rmtree(backuppath, forcibly=True)
                 backuppath = None
 
         finally:
-            ui.write(_(b'removing temporary repository %s\n') % tmppath)
+            ui.status(_(b'removing temporary repository %s\n') % tmppath)
             repo.vfs.rmtree(tmppath, forcibly=True)
 
-            if backuppath:
+            if backuppath and not ui.quiet:
                 ui.warn(
                     _(b'copy of old repository backed up at %s\n') % backuppath
                 )
diff --git a/tests/test-lfs-serve.t b/tests/test-lfs-serve.t
--- a/tests/test-lfs-serve.t
+++ b/tests/test-lfs-serve.t
@@ -133,30 +133,6 @@
   requirements
      preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
   
-  beginning upgrade...
-  repository locked and read-only
-  creating temporary repository to stage migrated data: * (glob)
-  (it is safe to interrupt this process any time before data migration completes)
-  migrating 3 total revisions (1 in filelogs, 1 in manifests, 1 in changelog)
-  migrating 324 bytes in store; 129 bytes tracked data
-  migrating 1 filelogs containing 1 revisions (73 bytes in store; 8 bytes tracked data)
-  finished migrating 1 filelog revisions across 1 filelogs; change in size: 0 bytes
-  migrating 1 manifests containing 1 revisions (117 bytes in store; 52 bytes tracked data)
-  finished migrating 1 manifest revisions across 1 manifests; change in size: 0 bytes
-  migrating changelog containing 1 revisions (134 bytes in store; 69 bytes tracked data)
-  finished migrating 1 changelog revisions; change in size: 0 bytes
-  finished migrating 3 total revisions; total change in store size: 0 bytes
-  copying phaseroots
-  data fully migrated to temporary repository
-  marking source repository as being upgraded; clients will be unable to read from repository
-  starting in-place swap of repository data
-  replaced files will be backed up at * (glob)
-  replacing store...
-  store replacement complete; repository was inconsistent for *s (glob)
-  finalizing requirements file and making repository readable again
-  removing temporary repository * (glob)
-  copy of old repository backed up at * (glob)
-  the old repository will not be deleted; remove it to free up disk space once the upgraded repository is verified
 
   $ grep 'lfs' .hg/requires $SERVER_REQUIRES
   [1]
diff --git a/tests/test-upgrade-repo.t b/tests/test-upgrade-repo.t
--- a/tests/test-upgrade-repo.t
+++ b/tests/test-upgrade-repo.t
@@ -174,6 +174,11 @@
      every revision will be re-added as if it was new content. It will go through the full storage mechanism giving extensions a chance to process it (eg. lfs). This is similar to "re-delta-all" but even slower since more logic is involved.
   
 
+  $ hg debugupgraderepo --quiet
+  requirements
+     preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
+  
+
 --optimize can be used to add optimizations
 
   $ hg debugupgrade --optimize redeltaparent
@@ -225,6 +230,12 @@
   re-delta-fulladd
      every revision will be re-added as if it was new content. It will go through the full storage mechanism giving extensions a chance to process it (eg. lfs). This is similar to "re-delta-all" but even slower since more logic is involved.
   
+  $ hg debugupgrade --optimize re-delta-parent --quiet
+  requirements
+     preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
+  
+  optimisations: re-delta-parent
+  
 
 unknown optimization:
 
@@ -332,6 +343,11 @@
   re-delta-fulladd
      every revision will be re-added as if it was new content. It will go through the full storage mechanism giving extensions a chance to process it (eg. lfs). This is similar to "re-delta-all" but even slower since more logic is involved.
   
+  $ hg debugupgraderepo --quiet
+  requirements
+     preserved: revlogv1, store
+     added: dotencode, fncache, generaldelta, sparserevlog
+  
 
   $ hg --config format.dotencode=false debugupgraderepo
   repository lacks features recommended by current config options:
@@ -1210,9 +1226,13 @@
   store
 
 Check that we can add the sparse-revlog format requirement
-  $ hg --config format.sparse-revlog=yes debugupgraderepo --run >/dev/null
-  copy of old repository backed up at $TESTTMP/sparserevlogrepo/.hg/upgradebackup.* (glob)
-  the old repository will not be deleted; remove it to free up disk space once the upgraded repository is verified
+  $ hg --config format.sparse-revlog=yes debugupgraderepo --run --quiet
+  upgrade will perform the following actions:
+  
+  requirements
+     preserved: dotencode, fncache, generaldelta, revlogv1, store
+     added: sparserevlog
+  
   $ cat .hg/requires
   dotencode
   fncache
@@ -1222,9 +1242,13 @@
   store
 
 Check that we can remove the sparse-revlog format requirement
-  $ hg --config format.sparse-revlog=no debugupgraderepo --run >/dev/null
-  copy of old repository backed up at $TESTTMP/sparserevlogrepo/.hg/upgradebackup.* (glob)
-  the old repository will not be deleted; remove it to free up disk space once the upgraded repository is verified
+  $ hg --config format.sparse-revlog=no debugupgraderepo --run --quiet
+  upgrade will perform the following actions:
+  
+  requirements
+     preserved: dotencode, fncache, generaldelta, revlogv1, store
+     removed: sparserevlog
+  
   $ cat .hg/requires
   dotencode
   fncache
@@ -1239,7 +1263,13 @@
 
 upgrade
 
-  $ hg --config format.revlog-compression=zstd debugupgraderepo --run  --no-backup >/dev/null
+  $ hg --config format.revlog-compression=zstd debugupgraderepo --run  --no-backup --quiet
+  upgrade will perform the following actions:
+  
+  requirements
+     preserved: dotencode, fncache, generaldelta, revlogv1, store
+     added: revlog-compression-zstd, sparserevlog
+  
   $ hg debugformat -v
   format-variant    repo config default
   fncache:           yes    yes     yes
@@ -1262,7 +1292,13 @@
 
 downgrade
 
-  $ hg debugupgraderepo --run --no-backup > /dev/null
+  $ hg debugupgraderepo --run --no-backup --quiet
+  upgrade will perform the following actions:
+  
+  requirements
+     preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
+     removed: revlog-compression-zstd
+  
   $ hg debugformat -v
   format-variant    repo config default
   fncache:           yes    yes     yes
@@ -1288,7 +1324,13 @@
   > [format]
   > revlog-compression=zstd
   > EOF
-  $ hg debugupgraderepo --run --no-backup > /dev/null
+  $ hg debugupgraderepo --run --no-backup --quiet
+  upgrade will perform the following actions:
+  
+  requirements
+     preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store
+     added: revlog-compression-zstd
+  
   $ hg debugformat -v
   format-variant    repo config default
   fncache:           yes    yes     yes
@@ -1316,7 +1358,15 @@
 
 upgrade
 
-  $ hg --config format.exp-use-side-data=yes debugupgraderepo --run  --no-backup --config "extensions.sidedata=$TESTDIR/testlib/ext-sidedata.py" >/dev/null
+  $ hg --config format.exp-use-side-data=yes debugupgraderepo --run  --no-backup --config "extensions.sidedata=$TESTDIR/testlib/ext-sidedata.py" --quiet
+  upgrade will perform the following actions:
+  
+  requirements
+     preserved: dotencode, fncache, generaldelta, revlogv1, store (no-zstd !)
+     preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, sparserevlog, store (zstd !)
+     added: exp-sidedata-flag (zstd !)
+     added: exp-sidedata-flag, sparserevlog (no-zstd !)
+  
   $ hg debugformat -v
   format-variant    repo config default
   fncache:           yes    yes     yes
@@ -1345,7 +1395,14 @@
 
 downgrade
 
-  $ hg debugupgraderepo --config format.exp-use-side-data=no --run --no-backup > /dev/null
+  $ hg debugupgraderepo --config format.exp-use-side-data=no --run --no-backup --quiet
+  upgrade will perform the following actions:
+  
+  requirements
+     preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-zstd !)
+     preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, sparserevlog, store (zstd !)
+     removed: exp-sidedata-flag
+  
   $ hg debugformat -v
   format-variant    repo config default
   fncache:           yes    yes     yes
@@ -1374,7 +1431,14 @@
   > [format]
   > exp-use-side-data=yes
   > EOF
-  $ hg debugupgraderepo --run --no-backup > /dev/null
+  $ hg debugupgraderepo --run --no-backup --quiet
+  upgrade will perform the following actions:
+  
+  requirements
+     preserved: dotencode, fncache, generaldelta, revlogv1, sparserevlog, store (no-zstd !)
+     preserved: dotencode, fncache, generaldelta, revlog-compression-zstd, revlogv1, sparserevlog, store (zstd !)
+     added: exp-sidedata-flag
+  
   $ hg debugformat -v
   format-variant    repo config default
   fncache:           yes    yes     yes