User blog comment:Rappy 4187/Technical Update: November 30, 2015/@comment-24473195-20151130232317

"Various entry points will show the count of items on that Insights list, letting you see how long it has become without having to directly visit it."

Insights are incredibly buggy  on several wikis. Some insights have no items, especially the Special:Insights/wantedpages vs Special:wantedpages. This has been reported months ago.

So unless the backend was changed, that count will undoubtebly be wrong for many wikis including Community central.

Any updates on MediaWiki:ImportJS or will that be a blog post?

Edit:

"The special template editor will now only appear on pages marked with the Infobox Template Type, as this is where it works best. Other template pages will see the 'classic' editor."

That is a step backwords. If all you want is the regular no frills text editor, then simply set the code editor to use "text". An inconsistent editing experience is much worse than reverting back to classic editor for all templates including infoboxes.

Anyway, since Staff doesn't seem to mind changing the editor on demand, my suggestion is that it automatically sets the ace-editor to css or javascript mode when the page ends with .css and .js for all namespaces.