Google Code-in

Make MediaWiki's "Vector" skin use the "deviceWidthTablet" LESS variable

• json
• less
• skin

Replace 2 or 3 deprecated hooks in 2 or 3 MediaWiki extensions (IV)

• php
• technical debt

Make hard-coded english strings in Huggle interface localizable

• Beginner
• huggle
• xml
• c++

Replace ~10 deprecated "Article::getContent()" calls in several MediaWiki extensions (IV)

• php
• technical debt

Subscribe/Unsubscribe newsletter floating dialog disappears too soon

Replace deprecated "Revision::getText()" calls in SemanticPageMaker MediaWiki extension

• php
• technical debt

In the WikiEduDashboard, do not allow that programs can be created with url-encoded spaces in the title

• javascript

Create an alias "mul" for -lang: syntax in Pywikibot

• python
• pywikibot

Fix raw HTML entity displayed in French locale in MediaWiki's Newsletter extension

• i18n
• php

Replace multiple Linker::link() usages with LinkRenderer in three MediaWiki extensions

• deprecation
• php
• object-orientated
• class