Last week, all wikis had slow access or no access for 30 minutes. There was a problem with generating dynamic lists of articles on the Russian Wikinews, due to the bulk import of 200,000+ new articles over 3 days, which led to database problems. The problematic feature has been disabled on that wiki and developers are discussing if it can be fixed properly.
The new version of MediaWiki will be on test wikis and MediaWiki.org from 3 August. It will be on non-Wikipedia wikis and some Wikipedias from 4 August. It will be on all wikis from 5 August (calendar).
The team of the Wikipedia app for Android is working on communication in the app. The developers are working on how to talk to other editors and get notifications. You can read more. They are looking for users who want to test the plans. Any editor who has an Android phone and is willing to download the app can do this.