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Welcome to MediaWiki.org MediaWiki is a free and open source software wiki package written in PHP, originally for use on Wikipedia. It is now also used by several other projects of the non-profit Wikimedia Foundation and by many other wikis, including this website, the home of MediaWiki. Use the links below to explore the site contents. You'll find some content translated into other languages, but the primary documentation language is English. For general questions about MediaWiki see the communication page or ask at the support desk. About this site   |   About MediaWiki   |   Download   |   Help and support

Download   1.42.3 – 2024-10-01 1.41.4 – 2024-10-01

System Administration Install & configure MediaWiki Upgrade an existing MediaWiki installation Add features with third-party extensions Get more sysadmin help Get professional development and consulting Join MediaWiki Stakeholders' Group, the third-party sysadmin user group	Developing & Extending Become a MediaWiki hacker Learn to use the API and ResourceLoader Browse the developer docs and class reference Already a hacker? Visit the developer hub
New opportunities Other ways to contribute...	News 2024-10-01 Maintenance release: 1.39.10, 1.41.4 and 1.42.3 2024-09-30 Security and maintenance release: 1.39.9 / 1.41.3 / 1.42.2 are now available. 2024-06-28 MediaWiki 1.40.x versions are now end of life. 2024-06-27 Maintenance release: 1.39.8 / 1.40.4 / 1.41.2 / 1.42.1 MediaWiki 1.42.0 is now available. Older news 2024-11-04 to 2024-11-06 MediaWiki Users and Developers Conference Fall 2024 in Vienna, Austria. 2024-05-03 to 2024-05-05 Wikimedia Hackathon 2024 in Tallinn, Estonia. 2024-04-17 to 2024-04-19 MediaWiki Users and Developers Conference Spring 2024 in Portland, OR (USA). (View livestream) 2024-03-28 MediaWiki 1.39.7, 1.40.3 and 1.41.1 security releases are now available. 2023-12-21 MediaWiki 1.41.0 is now available. MediaWiki 1.35.x versions are now end of life. 2024-02-03 to 2024-02-04 FOSDEM in Brussels, Belgium (Europe). 2024-01-05 Scholarship application deadline for Wikimedia Hackathon in Tallinn, Estonia (Europe). MediaWiki 1.35.14, 1.39.6 and 1.40.2 security releases are now available. 2023-12-11 to 2023-12-13 SMWCon Fall 2023 (hybrid event) 2023-09-29 Maintenance release: MediaWiki 1.35.13 2023-09-28 MediaWiki 1.35.12, 1.39.5 and 1.40.1 security releases are now available. 2023-06-30 MediaWiki 1.40.0 is now available. MediaWiki 1.35.11, 1.38.7 and 1.39.4 security releases are now available. MediaWiki 1.38.x versions are now end of life. 2023-08-16 to 2023-08-19 Wikimania 2023 conference in Singapore. 2023-08-15 to 2023-08-19 Chaos Communication Camp near Berlin, Germany (Europe). 2023-05-19 to 2023-05-21 Wikimedia Hackathon in Athens, Greece (Europe). 2023-06-09 MediaWiki 1.40.0-rc.0 pre-release is now ready for testing. 2023-04-19 to 2023-04-21 EMWCon in Austin, Texas, United States. View livestream. 2023-03-30 MediaWiki 1.35.10, 1.38.6 and 1.39.3 security releases are now available. 2023-03-11 MediaWiki is now on Mastodon! Follow us for updates at @mediawiki@wikis.world 2023-02-22 Maintenance release: MediaWiki 1.39.2 2023-02-04 to 2023-02-05 FOSDEM in Brussels, Belgium (Europe). 2022-12-22 MediaWiki 1.35.9, 1.38.5 and 1.39.1 security releases are now available. 2022-11-30 MediaWiki 1.39.0 is now available. MediaWiki 1.37.x versions are now end of life. 2022-10-07 MediaWiki 1.39.0-rc.1 pre-release is now ready for testing. 2022-09-29 MediaWiki 1.35.8, 1.37.5 and 1.38.3 security releases are now available. Maintenance release: MediaWiki 1.37.6 and 1.38.4 2022-06-15 The Wikimedia Developer Portal has launched: Discover Wikimedia's technical areas and how to contribute! 2022-06-03 MediaWiki 1.36.x versions are now end of life. 2022-10-26 to 2022-10-28 SMWCon Fall 2022 (hybrid event) 2022-09-23 MediaWiki 1.39.0-rc.0 pre-release is now ready for testing. 2022-07-08 Maintenance release: MediaWiki 1.37.4 2022-06-30 MediaWiki 1.35.7, 1.37.3 and 1.38.2 security releases are now available. 2022-06-06 Maintenance release: MediaWiki 1.38.1 2022-06-02 MediaWiki 1.38.0 is now available. 2022-05-20 to 2022-05-22 Wikimedia Hackathon 2022 (hybrid event) 2022-05-20 MediaWiki 1.38.0-rc.1 pre-release is now ready for testing. 2022-04-20 MediaWiki 1.38.0-rc.0 pre-release is now ready for testing. 2022-04-06 to 2022-04-08 EMWCon Spring 2022 (Houston, USA) 2022-03-31 MediaWiki 1.35.6, 1.36.4 and 1.37.2 security releases are now available. 2021-12-15 MediaWiki 1.35.5, 1.36.3 and 1.37.1 security releases are now available. 2021-11-18 MediaWiki 1.37.0 is now available. 2021-12-08 to 2021-12-10 SMWCon Fall 2021 (online) 2021-11-10 MediaWiki 1.37.0-rc.2 pre-release is now ready for testing. 2021-11-04 MediaWiki 1.37.0-rc.1 pre-release is now ready for testing. 2021-10-21 MediaWiki 1.37.0-rc.0 pre-release is now ready for testing. 2021-09-30 MediaWiki 1.31.16, 1.35.4 and 1.36.2 security releases are now available. MediaWiki 1.31.x versions are now end of life. 2021-05-20 #mediawiki IRC support channel is moving from Freenode to Libera Chat. 2021-06-23 MediaWiki 1.31.15, 1.35.3 and 1.36.1 security releases are now available. 2021-05-28 MediaWiki 1.36.0 is now available. 2021-05-21 to 2021-05-23 Wikimedia Remote Hackathon 2021 (online) 2021-04-08 MediaWiki 1.31.14 maintenance release is now available. MediaWiki 1.31.13 and 1.35.2 security releases are now available. 2021-04-01 MediaWiki has a new logo. 2020-12-18 MediaWiki 1.31.12 maintenance release is now available. 2020-12-17 MediaWiki 1.31.11 and 1.35.1 security releases are now available. 2020-11-30 MediaWiki 1.34.x versions are now end of life. 2020-09-25 MediaWiki 1.35.0 is now available. MediaWiki 1.31.10 and 1.34.4 maintenance releases are now available. 2020-09-24 MediaWiki 1.31.9 and 1.34.3 security releases are now available. 2020-09-15 A proposal to explore GitLab for code review to supersede Gerrit welcomes your developer feedback. 2020-11-24 to 2020-11-26 SMWCon Fall 2020 (online) 2020-09-04 MediaWiki 1.35.0-rc.3 pre-release is now ready for testing. 2020-08-21 MediaWiki 1.35.0-rc.2 pre-release is now ready for testing. 2020-08-07 MediaWiki 1.35.0-rc.1 pre-release is now ready for testing. 2020-07-31 MediaWiki 1.35.0-rc.0 pre-release is now ready for testing. 2020-06-24 MediaWiki 1.31.8, 1.33.4 and 1.34.2 security releases are now available. 2020-06-24 MediaWiki 1.33.x versions are now end of life. 2020-05-09 to 2020-05-10 Wikimedia Remote Hackathon 2020 (online) 2020-03-30 The Wikimedia Technical blog has been launched. 2020-04-01 to 2020-04-03 Enterprise MediaWiki Conference (online) 2020-03-26 MediaWiki 1.31.7, 1.33.3 and 1.34.1 security releases are now available. 2020-01-24 MediaWiki 1.32.x versions are now end of life. 2019-12-19 MediaWiki 1.34.0 is now available. MediaWiki 1.31.6, 1.32.6 and 1.33.2 security releases are now available. 2019-11-05 MediaWiki 1.34.0-rc.1 pre-release is now ready for testing. 2019-10-15 MediaWiki 1.31.5 and 1.32.5 maintenance releases are now available. MediaWiki 1.34.0-rc.0 pre-release is now ready for testing. 2019-10-07 MediaWiki 1.31.4, 1.32.4 and 1.33.1 security releases are now available. 2019-09-25 to 2019-09-27 SMWCon Fall 2019 in Paris, France. A live stream is available. 2019-07-02 MediaWiki 1.33.0 is now available. MediaWiki 1.31.3 and 1.32.3 are now available. 2019-06-07 MediaWiki 1.27.7 is now available. 2019-06-06 MediaWiki 1.27.6, 1.30.2, 1.31.2, and 1.32.2 security releases are now available. 2019-05-17 to 2019-05-19 European Wikimedia Hackathon in Prague, Czech Republic. 2019-04-30 MediaWiki 1.32.1 is now available. 2019-04-03 to 2019-04-05 Enterprise MediaWiki Conference in Daly City, USA. 2019-01-11 MediaWiki 1.32.0 is now available. 2018-10-23 to 2018-12-13 A Wikimedia/MediaWiki development contest for 13-17 year old students is taking place. See Google Code-in/2018 for more information. 2018-09-20 MediaWiki 1.31.1, 1.30.1, 1.29.3, 1.27.5 security releases are now available. 2018-06-13 MediaWiki 1.31.0 release is now available 2017-12-12 MediaWiki 1.30.0 release is now available 2017-11-14 MediaWiki 1.29.2, 1.28.3, 1.27.4 security releases are now available. 2017-08-23 MediaWiki 1.29.1 bugfix release is now available 2017-07-13 MediaWiki 1.29.0 release is now available 2017-04-30 MediaWiki 1.28.2, 1.27.3 security releases are now available. 2017-04-11 MediaWiki 1.23.17 bugfix release is now available (fixes issue in 1.23.16 for PHP 5.3 installs) 2017-04-06 MediaWiki 1.28.1, 1.27.2, 1.23.16 security releases are now available. 2016-11-28 MediaWiki 1.28.0 release is now available 2016-08-22 MediaWiki 1.27.1, 1.26.4, 1.23.15 security releases are now available. 2016-08-02 The Wikimedia Developer Summit 2016 videos have been published to Commons. 2016-06-28 MediaWiki 1.27.0 release (LTS) is now available  Note: MediaWiki 1.25.x versions are now end of life. 2016-05-20 MediaWiki 1.26.3, 1.25.6, and 1.23.14 security releases are now available. 2015-12-21 MediaWiki 1.26.2, 1.25.5, 1.24.6, and 1.23.13 maintenance releases are now available. 2015-12-17 MediaWiki 1.26.1, 1.25.4, 1.24.5, and 1.23.12 security releases are now available. 2015-11-25 MediaWiki 1.26.0 is now available 2015-10-16 MediaWiki 1.25.3, 1.24.4, and 1.23.11 security releases are now available. 2015-08-10 MediaWiki 1.25.2, 1.24.3, and 1.23.10 security releases are now available. 2015-06-30 From MediaWiki 1.26wmf12 onwards, the old continuation mode of the API for action=query doesn't work (details). 2015-06-12 Wikimedia sites begin requiring HTTPS (including API requests) 2015-05-25 MediaWiki 1.25.1 maintenance release is now available. MediaWiki 1.25.0 is now available, and 1.19 is officially EOL. 2015-03-31 MediaWiki 1.24.2, 1.23.9, and 1.19.24 security releases are now available. 2015-02-11 The VisualEditor project invites the community to participate in weekly triage meetings. 2014-12-17 MediaWiki 1.24.1, 1.23.8, 1.22.15 and 1.19.23 security releases are now available. 2014-11-26 MediaWiki 1.24.0 is now available. MediaWiki 1.23.7, 1.22.14 and 1.19.22 security releases are now available. 2014-10-29 MediaWiki 1.23.6, 1.22.13 and 1.19.21 releases are now available. 2014-10-01 MediaWiki 1.23.5, 1.22.12 and 1.19.20 security releases are now available. 2014-09-24 MediaWiki 1.23.4, 1.22.11 and 1.19.19 security and maintenance releases are now available. 2014-08-27 MediaWiki 1.23.3 and 1.22.10 maintenance releases are now available. 2014-07-30 MediaWiki 1.23.2, 1.22.9 and 1.19.18 security and maintenance releases are now available. 2014-06-25 MediaWiki 1.23.1, 1.22.8, 1.21.11 and 1.19.17 security and maintenance releases are now available. 2014-06-05 MediaWiki 1.23.0 is now available. 2014-05-29 MediaWiki 1.22.7, 1.21.10 and 1.19.16 security and maintenance releases are now available. 2014-04-24 MediaWiki 1.22.6 and 1.21.9 security releases are now available. MediaWiki 1.23.0 release candidate is now available. 2014-04-02 MediaWiki 1.19.15 maintenance release is now available. 2014-03-27 MediaWiki 1.22.5, 1.21.8 and 1.19.14 security releases are now available. 2014-03-11 MediaWiki 1.19.13 security release is now available. MediaWiki 1.22.4 and 1.21.7 are now available. 2014-02-27 MediaWiki 1.22.3, 1.21.6, and 1.19.12 security releases are now available. 2014-01-28 MediaWiki 1.22.2, 1.21.5, and 1.19.11 security releases are now available. 2014-01-13 MediaWiki 1.22.1, 1.21.4, and 1.19.10 security releases are now available. 2013-12-06 MediaWiki 1.22.0 is now available. 2013-12-03 MediaWiki 1.22.0rc3 is now available. 2013-11-17 MediaWiki 1.22.0rc2 is now available. 2013-11-14 MediaWiki 1.21.3, 1.20.8 and 1.19.9 security releases are now available. 2013-09-12 VipsScaler implementation by volunteer developer improves image handling on Wikimedia sites 2013-09-03 MediaWiki 1.21.2, 1.20.7 and 1.19.8 security releases are now available. 2013-05-29 MediaWiki 1.21.1 bug fix release is now available. 2013-05-25 MediaWiki 1.21.0 is now available. 2013-05-21 MediaWiki 1.20.6 and 1.19.7 security releases are now available. 2013-05-09 Watch & test the upcoming user discussion pages in Wikipedia / MediaWiki (more) 2013-04-30 MediaWiki 1.20.5 and 1.19.6 security releases are now available. 2013-04-17 Mobile testers: visit 3 pages. All mobile devices welcome! 2013-04-15 MediaWiki 1.20.4 and 1.19.5 security releases are now available. 2013-04-09 Kiwix for Android released 2013-04-08 Wikimedia has been accepted into Google Summer of Code. 2013-04-04 Join us this Saturday with Weekend Testing Americas and the upcoming Account creation UX 2013-03-13 Lua meets Wikipedia meetup in SF + video stream 2013-03-11 QA weekly goal: browser automation testing for Wikipedia search 2013-03-08 Wikimedia Hackathon in Amsterdam, May 24-26. Registration open. 2013-03-06 Join our Bug Day tomorrow and help triaging MediaWiki - General reports. 2013-03-04 MediaWiki 1.20.3 and 1.19.4 security releases are now available. 2013-02-22 Wikipedia starts supporting the Lua scripting language for writing templates Video: Wikimedia & wikiHow mobile updates 2013-02-21 Smartphone photographers: join the Wikimedia Commons mobile uploads testing week, starting on Feb 25. The Signpost Technology report: Better templates and 3D buildings. 2013-02-20 MediaWiki extensions, gadgets, and modules at SCALE 11x - this weekend in Los Angeles. 2013-02-11 The MediaWiki community will apply to be part of the 2013 edition of Google Summer of Code (announcement). 2013-02-08 PageImages extension aims to return the single most appropriate thumbnail associated with an article. Echo: A new notification system for Wikipedia MediaWiki is on Packagist How to hack on Wikipedia presentation at FOSDEM - video & slides 2013-02-05 The Signpost Technology report: Wikidata team targets English Wikipedia deployment Commons app project starts releasing nightly builds of Android version for testing. 2013-02-04 From duct tape to puppets: How a new data center became an opportunity to do things right Wikipedia Mobile Hits 3 Billion Monthly Page Views Kiwix project leader interview. Wikimedia IdeaLab is an experiment in user-friendly grantmaking - applies to software projects as well. 2013-01-31 Our sessions at FOSDEM: How MediaWiki is tested Research / Data Analyst How to hack on Wikipedia GeoData: a new age of geotagging on Wikipedia - based on the GeoData extension The Signpost technology report: Developers get ready for FOSDEM amid caching problems 2013-01-30 XOWA - A free, open-source, offline Wikipedia application (developer intro) 2013-01-29 QA weekly goals: Review 250 open bugs unchanged for more than one year VisualEditor: Testing Non-Latin Characters Input and Behavior 2013-01-26 New Wikivoyage app for Android (Google Play link) 2013-01-25 MediaWiki SVN repository marked as read-only Check the roadmap of Parsoid, the wikitext / HTML / RDF translator required by the VisualEditor extension. Wikimedia Foundation is looking for: Technical Writer 2013-01-23 The Signpost technology report: Data centre migration successful Wikimedians attending Wikimania 2013 in Hong Kong this August can apply for a scholarship (deadline: Feb 22) 2013-01-19 Wikimedia sites to move to primary data center in Ashburn, Virginia Next Bug Day: Jan 29, 17:00-23:00 UTC 2013-01-18 New grants available from the Wikimedia Foundation for individual Wikimedians New manual for using Pywikibot for Wikidata Beautiful demo video showcasing Seizam's collaborative features Strapping, a friendly starter theme for MediaWiki - in use at oVirt.org Mailing list for Editor Engagement tech now open - see welcome message 2013-01-17 Video: Solr use in MediaWiki Translate extension, by Niklas Laxström BlueSpice 1.20.1 patch release (notes) How To Install MediaWiki on Rackspace Cloud Sites Video Guide 2013-01-16 Intermittent outages planned, first Wikidata client deployment - The Signpost Technology report 2013-01-14 Promotion, marketing & outreach at the new MediaWiki Group Promotion MediaWiki Group San Francisco becomes our first local group Putting together a list of MediaWiki vendors 2013-01-11 Wikimedia Foundation is looking for: Tools Lab Operations Engineer (Contractor) Wikipedia Mobile Beta: a sandbox for new experimental features A more efficient translation interface (includes demo video) 2013-01-10 Wikimedia engineering December 2012 report 2013-01-09 MediaWiki 1.21 is under development. Watch its wiki page and follow the thread at wikitech-l. Looking ahead to 2013 - The Signpost Technology report 2013-01-08 Diff 0.4 released 2013-01-07 MediaWiki community metrics December report BlueSpice MediaWiki 1.20 stable release now available 2013-01-05 Wikimedia Foundation is looking for: Site Reliability Engineer 2013-01-03 Natural Language Processing for MediaWiki: First major release of the Semantic Assistants Wiki-NLP Integration Meet the Echo development team on Jan 8 and learn about the upcoming notifications framework for MediaWiki MediaWiki Workshop in Kolkata this Saturday at MozTI@BESU 2013-01-01 Wikimedia’s Bug Management 2012-12-04 1.20.2 released MediaWiki 1.20.2 is now available. 2012-11-30 1.20.1, 1.19.3, 1.18.6 released MediaWiki 1.20.1, 1.19.3 and 1.18.6 security releases are now available. 2012-11-07 1.20.0 released MediaWiki 1.20.0 is now available. 2012-08-31 1.19.2, 1.18.5 released MediaWiki 1.19.2 and 1.18.5 security releases are now available. Older news...	Popular pages MediaWiki Virtual Library (MVL) Collections of selected articles Tutorials Trainings and similar resources How to debug Guide to debugging MediaWiki Manual:Errors and Symptoms Common errors and symptoms Community portal...