diff --git a/app/assets/javascripts/boards/index.js b/app/assets/javascripts/boards/index.js
index 1c5f8ec6986..cbd3280f0d3 100644
--- a/app/assets/javascripts/boards/index.js
+++ b/app/assets/javascripts/boards/index.js
@@ -86,6 +86,7 @@ export default () => {
       boardId: $boardApp.dataset.boardId,
       groupId: Number($boardApp.dataset.groupId) || null,
       rootPath: $boardApp.dataset.rootPath,
+      canUpdate: $boardApp.dataset.canUpdate,
     },
     store,
     apolloProvider,
diff --git a/app/views/projects/ci/lints/show.html.haml b/app/views/projects/ci/lints/show.html.haml
index 2e79852f4c9..ca169f808b5 100644
--- a/app/views/projects/ci/lints/show.html.haml
+++ b/app/views/projects/ci/lints/show.html.haml
@@ -1,6 +1,6 @@
 - page_title _("CI Lint")
 - page_description _("Validate your GitLab CI configuration file")
-- unless Feature.enabled?(:monaco_ci)
+- unless Feature.enabled?(:monaco_ci, default_enabled: true)
   - content_for :library_javascripts do
     = page_specific_javascript_tag('lib/ace.js')
 
@@ -17,7 +17,7 @@
           .file-holder
             .js-file-title.file-title.clearfix
               = _("Contents of .gitlab-ci.yml")
-            - if Feature.enabled?(:monaco_ci)
+            - if Feature.enabled?(:monaco_ci, default_enabled: true)
               .file-editor.code
                 .js-edit-mode-pane.qa-editor#editor{ data: { 'editor-loading': true } }<
                   %pre.editor-loading-content= params[:content]
diff --git a/changelogs/unreleased/198612-monaco-ci-default.yml b/changelogs/unreleased/198612-monaco-ci-default.yml
new file mode 100644
index 00000000000..3fbef70f629
--- /dev/null
+++ b/changelogs/unreleased/198612-monaco-ci-default.yml
@@ -0,0 +1,5 @@
+---
+title: Replaced ACE with Editor Lite for CI linting
+merge_request: 42814
+author:
+type: added
diff --git a/changelogs/unreleased/migrate-recover-hidden-stage.yml b/changelogs/unreleased/migrate-recover-hidden-stage.yml
new file mode 100644
index 00000000000..e4cf4992a94
--- /dev/null
+++ b/changelogs/unreleased/migrate-recover-hidden-stage.yml
@@ -0,0 +1,5 @@
+---
+title: Migrate Recover hidden stage dropdown
+merge_request: 43032
+author:
+type: other
diff --git a/config/feature_flags/development/build_service_proxy.yml b/config/feature_flags/development/build_service_proxy.yml
index 165e3c15f81..0c0aaa8aca9 100644
--- a/config/feature_flags/development/build_service_proxy.yml
+++ b/config/feature_flags/development/build_service_proxy.yml
@@ -1,7 +1,7 @@
 ---
 name: build_service_proxy
-introduced_by_url: 
-rollout_issue_url: 
-group: 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/9723
+rollout_issue_url:
+group: group::editor
 type: development
 default_enabled: false
diff --git a/config/feature_flags/development/monaco_ci.yml b/config/feature_flags/development/monaco_ci.yml
index 5d6ace8d8ad..0f1c8b521f2 100644
--- a/config/feature_flags/development/monaco_ci.yml
+++ b/config/feature_flags/development/monaco_ci.yml
@@ -1,7 +1,7 @@
 ---
 name: monaco_ci
-introduced_by_url: 
-rollout_issue_url: 
-group: 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/23666
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/249137
+group: group::editor
 type: development
-default_enabled: false
+default_enabled: true
diff --git a/config/feature_flags/development/resource_access_token.yml b/config/feature_flags/development/resource_access_token.yml
index 80c5b2a5eb4..af91cfde89c 100644
--- a/config/feature_flags/development/resource_access_token.yml
+++ b/config/feature_flags/development/resource_access_token.yml
@@ -1,7 +1,7 @@
 ---
 name: resource_access_token
-introduced_by_url: 
-rollout_issue_url: 
-group: 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/29622
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/235765
+group: group::access
 type: development
 default_enabled: true
diff --git a/config/feature_flags/development/snippet_multiple_files.yml b/config/feature_flags/development/snippet_multiple_files.yml
index 28520cea19c..f495c3d4e64 100644
--- a/config/feature_flags/development/snippet_multiple_files.yml
+++ b/config/feature_flags/development/snippet_multiple_files.yml
@@ -1,7 +1,7 @@
 ---
 name: snippet_multiple_files
-introduced_by_url: 
-rollout_issue_url: 
-group: 
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/32416
+rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/217809
+group: group::editor
 type: development
 default_enabled: false
diff --git a/doc/development/pipelines.md b/doc/development/pipelines.md
index 7756ef376fc..d12220d8c95 100644
--- a/doc/development/pipelines.md
+++ b/doc/development/pipelines.md
@@ -122,7 +122,6 @@ graph RL;
   click 2_2-5 "https://app.periscopedata.com/app/gitlab/652085/Engineering-Productivity---Pipeline-Build-Durations?widget=8404303&udv=0"
   subgraph "Needs `setup-test-env` & `compile-test-assets`";
     2_2-2 & 2_2-4 & 2_2-5 --> 1-6 & 1-3;
-    2_2-3 --> 1-6 & 1-4;
   end
 
   2_3-1["build-assets-image (2.5 minutes)"];
@@ -228,7 +227,6 @@ graph RL;
   click 2_2-5 "https://app.periscopedata.com/app/gitlab/652085/Engineering-Productivity---Pipeline-Build-Durations?widget=8404303&udv=0"
   subgraph "Needs `setup-test-env` & `compile-test-assets`";
     2_2-2 & 2_2-4 & 2_2-5 --> 1-6 & 1-3;
-    2_2-3 --> 1-6 & 1-4;
   end
 
   2_3-1["build-assets-image (2.5 minutes)"];
diff --git a/doc/user/project/merge_requests/test_coverage_visualization.md b/doc/user/project/merge_requests/test_coverage_visualization.md
index 56b5774f15b..39c15d49749 100644
--- a/doc/user/project/merge_requests/test_coverage_visualization.md
+++ b/doc/user/project/merge_requests/test_coverage_visualization.md
@@ -5,13 +5,13 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 type: reference, howto
 ---
 
-# Test Coverage Visualization **(CORE ONLY)**
+# Test Coverage Visualization
 
 > - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/3708) in GitLab 12.9.
 > - [Feature flag enabled](https://gitlab.com/gitlab-org/gitlab/-/issues/211410) in GitLab 13.4.
 > - It's enabled on GitLab.com.
 > - It can be disabled per-project.
-> - To use it in GitLab self-managed instances, ask a GitLab administrator to [enable it](#enabling-the-feature). **(CORE ONLY)**
+> - For GitLab self-managed instances, GitLab administrators can opt to [disable it](#enable-or-disable-code-coverage-visualization). **(CORE ONLY)**
 
 With the help of [GitLab CI/CD](../../../ci/README.md), you can collect the test
 coverage information of your favorite testing or coverage-analysis tool, and visualize
@@ -74,21 +74,12 @@ test:
       cobertura: coverage/cobertura-coverage.xml
 ```
 
-## Enabling the feature
+## Enable or disable code coverage visualization
 
 This feature comes with the `:coverage_report_view` feature flag enabled by
 default. It is enabled on GitLab.com. [GitLab administrators with access to the GitLab Rails console](../../../administration/feature_flags.md)
 can disable it for your instance. Test coverage visualization can be enabled or disabled per-project.
 
-To enable it:
-
-```ruby
-# Instance-wide
-Feature.enable(:coverage_report_view)
-# or by project
-Feature.enable(:coverage_report_view, Project.find(<project id>))
-```
-
 To disable it:
 
 ```ruby
@@ -97,3 +88,12 @@ Feature.disable(:coverage_report_view)
 # or by project
 Feature.disable(:coverage_report_view, Project.find(<project id>))
 ```
+
+To enable it:
+
+```ruby
+# Instance-wide
+Feature.enable(:coverage_report_view)
+# or by project
+Feature.enable(:coverage_report_view, Project.find(<project id>))
+```
diff --git a/lib/gitlab/gon_helper.rb b/lib/gitlab/gon_helper.rb
index 66517ecd743..c945fe96116 100644
--- a/lib/gitlab/gon_helper.rb
+++ b/lib/gitlab/gon_helper.rb
@@ -45,7 +45,7 @@ module Gitlab
       # made globally available to the frontend
       push_frontend_feature_flag(:snippets_vue, default_enabled: true)
       push_frontend_feature_flag(:monaco_blobs, default_enabled: true)
-      push_frontend_feature_flag(:monaco_ci, default_enabled: false)
+      push_frontend_feature_flag(:monaco_ci, default_enabled: true)
       push_frontend_feature_flag(:snippets_edit_vue, default_enabled: true)
       push_frontend_feature_flag(:webperf_experiment, default_enabled: false)
       push_frontend_feature_flag(:snippets_binary_blob, default_enabled: false)
diff --git a/lib/gitlab/webpack/manifest.rb b/lib/gitlab/webpack/manifest.rb
index b92890757f4..3424f16b852 100644
--- a/lib/gitlab/webpack/manifest.rb
+++ b/lib/gitlab/webpack/manifest.rb
@@ -24,6 +24,8 @@ module Gitlab
       AssetMissingError = Class.new(StandardError)
 
       class << self
+        include Gitlab::Utils::StrongMemoize
+
         def entrypoint_paths(source)
           raise WebpackError, manifest["errors"] unless manifest_bundled?
 
@@ -55,6 +57,10 @@ module Gitlab
           end
         end
 
+        def clear_manifest!
+          clear_memoization(:manifest)
+        end
+
         private
 
         def manifest_bundled?
@@ -67,7 +73,7 @@ module Gitlab
             load_manifest
           else
             # ... otherwise cache at class level, as JSON loading/parsing can be expensive
-            @manifest ||= load_manifest
+            strong_memoize(:manifest) { load_manifest }
           end
         end
 
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 88dd95d539b..9815d5fac4d 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -1014,6 +1014,11 @@ msgid_plural "%d Days"
 msgstr[0] ""
 msgstr[1] ""
 
+msgid "1 Issue"
+msgid_plural "%d Issues"
+msgstr[0] ""
+msgstr[1] ""
+
 msgid "1 closed issue"
 msgid_plural "%{issues} closed issues"
 msgstr[0] ""
diff --git a/spec/lib/gitlab/webpack/manifest_spec.rb b/spec/lib/gitlab/webpack/manifest_spec.rb
index 65a2d8c750f..606a94ace8d 100644
--- a/spec/lib/gitlab/webpack/manifest_spec.rb
+++ b/spec/lib/gitlab/webpack/manifest_spec.rb
@@ -16,6 +16,14 @@ RSpec.describe Gitlab::Webpack::Manifest do
     EOF
   end
 
+  around do |example|
+    Gitlab::Webpack::Manifest.clear_manifest!
+
+    example.run
+
+    Gitlab::Webpack::Manifest.clear_manifest!
+  end
+
   shared_examples_for "a valid manifest" do
     it "returns single entry asset paths from the manifest" do
       expect(Gitlab::Webpack::Manifest.asset_paths("entry2")).to eq(["/public_path/entry2.js"])