Enabled unified diff components by default

app/controllers/projects/merge_requests_controller.rb

@@ -36,7 +36,7 @@ class Projects::MergeRequestsController < Projects::MergeRequests::ApplicationCo
     push_frontend_feature_flag(:approvals_commented_by, @project, default_enabled: true)
     push_frontend_feature_flag(:hide_jump_to_next_unresolved_in_threads, default_enabled: true)
     push_frontend_feature_flag(:merge_request_widget_graphql, @project)
-    push_frontend_feature_flag(:unified_diff_components, @project)
+    push_frontend_feature_flag(:unified_diff_components, @project, default_enabled: true)
     push_frontend_feature_flag(:default_merge_ref_for_diffs, @project)
     push_frontend_feature_flag(:core_security_mr_widget, @project, default_enabled: true)
     push_frontend_feature_flag(:core_security_mr_widget_counts, @project)

config/feature_flags/development/unified_diff_components.yml

@@ -4,4 +4,4 @@ introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/44974
 rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/268039
 type: development
 group: group::code review
-default_enabled: false
+default_enabled: true