Sometimes, it is hard to see important changes in a wikitext diff. This screenshot of a wikitext diff (click to enlarge) shows that the paragraphs have been rearranged, but it does not highlight the removal of a word or the addition of a new sentence.
If you enable the Beta Feature for "⧼visualeditor-preference-visualdiffpage-label⧽", you will have a new option. It will give you a new box at the top of every diff page. This box will let you choose either diff system on any edit.
Click the toggle button to switch between visual and wikitext diffs.
In the visual diff, additions, removals, new links, and formatting changes will be highlighted. Other changes, such as changing the size of an image, are described in notes on the side.
This screenshot shows the same edit as the wikitext diff. The visual diff highlights the removal of one word and the addition of a new sentence.
You can read and help translate the user guide, which has more information about how to use the visual editor.
The 2017 wikitext editor is available as a Beta Feature on desktop devices. It has the same toolbar as the visual editor and can use the citoid service and other modern tools. The team have been comparing the performance of different editing environments. They have studied how long it takes to open the page and start typing. The study uses data for more than one million edits during December and January. Some changes have been made to improve the speed of the 2017 wikitext editor and the visual editor. Recently, the 2017 wikitext editor opened fastest for most edits, and the 2010 WikiEditor was fastest for some edits. More information will be posted at mw:Contributors/Projects/Editing performance.
The visual diff tool was developed for the visual editor. It is now available to all users of the visual editor and the 2017 wikitext editor. When you review your changes, you can toggle between wikitext and visual diffs. You can also enable the new Beta Feature for "Visual diffs". The Beta Feature lets you use the visual diff tool to view other people's edits on page histories and Special:RecentChanges. 
If you aren't reading this in your preferred language, then please help us with translations! Subscribe to the Translators mailing list or contact us directly. We will notify you when the next issue is ready for translation. Takk!
The wording when you send a thanks message has changed. Instead of Ja or Nei it says Takk and Avbryt. It is also now easier to understand that all thanks are public. 
A notification is now sent to account owner on multiple unsuccessful login attempts. 
Between week 7 and 20 February, when you thanked someone for an edit, the thank went to the latest unthanked edit to that page. It didn't matter which edit you tried to give thanks for. This has been fixed. 
Long page titles on Special:Notifications were not truncated. This is now fixed. 
On Special:AbuseLog you can now choose to list only actions that actually made an edit. Other actions are when the filter warned the editor or blocked the edit from being made. There are also more search options. 
The new version of MediaWiki will be on test wikis and MediaWiki.org from 6 March. It will be on non-Wikipedia wikis and some Wikipedias from 7 March. It will be on all wikis from 8 March (calendar).
You can join the next meeting with the Editing team. During the meeting, you can tell developers which bugs you think are the most important. The meeting will be on 6 March at 19:30 (UTC). See how to join.
You can join the technical advice meeting on IRC. During the meeting, volunteer developers can ask for advice. The meeting will be on 7 March at 16:00 (UTC). See how to join.
In the future you will be able to use global preferences. This means you could change a preference for all wikis instead of having to change it every time for each wiki. You can now test global preferences and give feedback.
It is now possible to specify the block parameters for each filter in Special:AbuseFilter. The parameters include block duration and if the user should be blocked from editing their own talk page. The block duration is separate for anonymous and registered users. 
A hundred Wikimedia wikis will switch to use the Remex parsing library. This is to replace Tidy. It will happen on 13 and 14 March. Other wikis will be recommended to switch soon when they have fixed the errors that must be fixed. Tidy will be removed in the middle of 2018. 
The new version of MediaWiki will be on test wikis and MediaWiki.org from 13 March. It will be on non-Wikipedia wikis and some Wikipedias from 14 March. It will be on all wikis from 15 March (calendar).
You can join the next meeting with the Editing team. During the meeting, you can tell developers which bugs you think are the most important. The meeting will be on 13 March at 19:30 (UTC). See how to join.
You can join the technical advice meeting on IRC. During the meeting, volunteer developers can ask for advice. The meeting will be on 14 March at 16:00 (UTC). See how to join.
It was not possible to opt-in and opt-out Structured discussions on wikis using it as a Beta feature. It is now fixed. 
The visual editor and 2017 wikitext editor interface is going to change for consistency. The toolbar, dialogs and menus will appear slightly bigger; some icons will look different. Content or functionality will not change. That change will apply to Structured Discussions as well. 
Latest tech news from the Wikimedia technical community. Please tell other users about these changes. Not all changes will affect you. Translations are available.
Changes later this week
Some of the interface icons and text sizes will change slightly, as part of the updates for improved accessibility and consistency. These icons are used in many features, including Notifications, Recent Changes, Beta Features, Visual Editor, 2017 Wikitext Editor, Code Editor, and others. While editor toolbars, dialogs, and menus will appear slightly bigger; elements on special pages will be slightly smaller. Functionality will not change. 
The deprecated #toc and #toctitle CSS ids have been removed. If your wiki was still using these for fake Tables of Content (ToC) then these might lose their styling. They can be replaced with .toc and .toctitle classes where appropriate. 
The new version of MediaWiki will be on test wikis and MediaWiki.org from 27 March. It will be on non-Wikipedia wikis and some Wikipedias from 28 March. It will be on all wikis from 29 March (calendar).
You can join the next meeting with the Editing team. During the meeting, you can tell developers which bugs you think are the most important. The meeting will be on 27 March at 18:30 (UTC). See how to join.
You can join the technical advice meeting on IRC. During the meeting, volunteer developers can ask for advice. The meeting will be one hour earlier than usual on 28 March at 15:00 (UTC). See how to join.
From 9 April, the sort order of categories will be distorted for a short time. We are upgrading versions of an internationalisation library (ICU) and using a maintenance script to update existing database entries. This will last anywhere from a few hours to a few days, depending on wiki size. Read more details. 
Changes are coming to search for Serbian projects. Cyrillic and Latin variants of a word and different grammatical forms of a word will be able to find each other. Read more on MediaWiki in Serbian or English.