某些時候，要在維基文本編輯差異功能中找到重要的變更並不容易。 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 "可视化差异", 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.
In the visual diff, additions, removals, new links, and formatting changes will be highlighted. 而更改圖片大小等其他變更則會註記在旁邊的備註欄中。
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. 
Editing of sitewide CSS/JS is only possible for interface administrators from now编辑
as announced previously, permission handling for CSS/JS pages has changed: only members of the interface-admin (界面管理员) group, and a few highly privileged global groups such as stewards, can edit CSS/JS pages that they do not own (that is, any page ending with .css or .js that is either in the MediaWiki: namespace or is another user's user subpage). This is done to improve the security of readers and editors of Wikimedia projects. More information is available at Creation of separate user group for editing sitewide CSS/JS. If you encounter any unexpected problems, please contact me or file a bug.
The Wikimedia Foundation will be testing its secondary data centre. This will make sure that Wikipedia and the other Wikimedia wikis can stay online even after a disaster. To make sure everything is working, the Wikimedia Technology department needs to do a planned test. This test will show if they can reliably switch from one data centre to the other. It requires many teams to prepare for the test and to be available to fix any unexpected problems.
They will switch all traffic to the secondary data center on Wednesday, 12 September 2018.
On Wednesday, 10 October 2018, they will switch back to the primary data center.
Unfortunately, because of some limitations in MediaWiki, all editing must stop when we switch. We apologize for this disruption, and we are working to minimize it in the future.
You will be able to read, but not edit, all wikis for a short period of time.
You will not be able to edit for up to an hour on Wednesday, 12 September and Wednesday, 10 October. The test will start at 14:00 UTC (15:00 BST, 16:00 CEST, 10:00 EDT, 07:00 PDT, 23:00 JST, and in New Zealand at 02:00 NZST on Thursday 13 September and Thursday 11 October).
If you try to edit or save during these times, you will see an error message. We hope that no edits will be lost during these minutes, but we can't guarantee it. If you see the error message, then please wait until everything is back to normal. Then you should be able to save your edit. But, we recommend that you make a copy of your changes first, just in case.
Background jobs will be slower and some may be dropped. Red links might not be updated as quickly as normal. If you create an article that is already linked somewhere else, the link will stay red longer than usual. Some long-running scripts will have to be stopped.
There will be code freezes for the weeks of 10 September 2018 and 8 October 2018. Non-essential code deployments will not happen.