Latest tech news from the Wikimedia technical community. Please tell other users about these changes. Not all changes will affect you. You can read translations.
- You can test a new system to see math using MathML. Go to your display options and choose "SVG with PNG fallback (MathML can be enabled via browser plugin)".
- You can add badges in Wikidata for quality articles and featured lists.  
File information cleanup
- Developers fixed a security problem. If you use Internet Explorer 6, you won't be able to log in any more. You should use a newer browser. 
Changes this week
- The new version of MediaWiki (1.25wmf4) has been on test wikis and MediaWiki.org since October 16. It will be on non-Wikipedia wikis from October 21, and on all Wikipedias from October 23 (calendar).
- 10% of logged-out readers are getting pages from servers that run the HHVM tool. HHVM should make pages load faster. You can also test it as a Beta Feature. 
- If you add the same parameter twice in a template, it now puts the page in a tracking category.  
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