WMF deployed extensions that need converting to manifest_version 2 ([[ https://www.mediawiki.org/wiki/Manual:Extension.json/Schema#manifest_version | compatible with 1.29+ ]]):
[x] ActiveAbstract
[x] ApiFeatureUsage
[ ] ArticlePlaceholder
[x] Babel
[x] BetaFeatures
[x] Calendar
[x] Campaigns
[x] Capiunto
[x] CategoryTree
[x] CentralNotice
[x] CharInsert
[x] cldr
[x] CodeEditor
[ ] CodeMirror
[x] CodeReview
[x] CollaborationKit
[x] CommonsMetadata
[x] ContactPage
[ ] ContributionTracking
[x] CreditsSource
[ ] Dashiki
[ ] Disambiguator
[ ] DismissableSiteNotice
[ ] DonationInterface
[ ] DoubleWiki
[ ] DynamicSidebar
[x] Elastica
[ ] ElectronPdfService
[ ] EventBus
[ ] ExtensionDistributor
[ ] FeaturedFeeds
[ ] FundraiserLandingPage
[ ] Gadgets
[x] GeoCrumbs
[ ] GettingStarted
[ ] GlobalCssJs
[ ] GlobalPreferences
[ ] GlobalUserPage
[ ] GoogleNewsSitemap
[ ] Graph
[ ] GuidedTour
[x] ImageMap
[x] InputBox
[x] Insider
[ ] intersection
[ ] Interwiki
[x] Josa
[x] LabeledSectionTransclusion
[ ] LandingCheck
[ ] Linter
[x] Listings
[ ] LocalisationUpdate
[x] MapSources
[ ] MassMessage
[ ] Math
[x] MobileApp
[ ] MobileFrontend
[ ] MultimediaViewer
[x] Newsletter
[ ] NewUserMessage
[x] Nuke
[ ] PageAssessments
[ ] ParserFunctions
[ ] ParsoidBatchAPI
[ ] PdfHandler
[x] PerformanceInspector
[ ] Petition
[x] Poem
[x] PoolCounter
[x] PropertySuggester
[x] QuickSurveys
[x] Quiz
[x] Renameuser
[x] RevisionSlider
[ ] RSS
[ ] SandboxLink
[ ] Score
[ ] SearchExtraNS
[ ] SecurePoll
[ ] ShortUrl
[ ] SpamBlacklist
[ ] SubpageSortkey
[ ] SyntaxHighlight_GeSHi
[ ] TemplateData
[ ] TemplateSandbox
[ ] TextExtracts
[ ] Thanks
[ ] TitleBlacklist
[x] TocTree
[ ] TranslationNotifications
[x] TrustedXFF
[ ] UploadsLink
[ ] UploadWizard
[ ] UrlShortener
[ ] UserMerge
[ ] VisualEditor
[x] WikiEditor
[x] wikihiero
[ ] WikiLove
[ ] WikimediaBadges
[ ] WikimediaEvents
[ ] WikimediaIncubator
[ ] Wikisource
[x] XAnalytics