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Wikidata weekly summary #744
[edit]
week leading up to 2026-08-10. Missed the previous one? See issue #743.
Discussions
- The order of properties on Wikidata is governed by MediaWiki/Wikibase-SortedProperties. We propose moving (P2559) Wikidata usage instructions to the top, so important guidance is more visible and less likely to be overlooked. To comment on this change, please visit MediaWiki_talk#prominently displaying (P2559).
- Closed request for comments: 19 RfC's were closed recently, too many to list here. Please see the RfC page for more information.
Events
- Upcoming events:
- (Deutsch) nfdi4 / Workshop: Make Research Software Findable using the Software Marketplace Wikidata, 18.08.2026, 14:00–16:00 CEST (register for Zoom-link)
- Improving Wikidata References: The hands-on session will explore how to identify and improve broken references on Wikidata , 15.08.2026, 17:00–18:00 WAT (UTC+1).
- Looking ahead: (Deutsch) Freie Universitat / Tidy data version control - Wikidata in research: 22.10.2026, 09:00 - 16:00 CEST.
- Previous events: August 04 - Blazegraph Migration office hour - see the Etherpad notes for questions and answers.
Press, articles, blog posts, videos
- Blogs:
- gdottv / The Weekly Edge article: demonstrating the Wikidata Query Logs (WDQL) Dataset talks about a paper released in February this year, (Wikidata Query Logs Dataset)
- LinkedIn - User:Orthodoc10 describes their experience mapping and modelling knee replacement surgical practices into Wikidata
- Wikisignals.org: Helping Editors Evaluate Reference Reliability
- Zero-budget programs you could start tommorrow - Lessons from Wikimania Paris]
- OpenSpeaks Tools Update: Subtitler, Tome, and Bento Go Stable — Meet Media Dashboard
- [[Diffblog:a-look-at-a-2026-wikimania-hackathon-project-wikidata-bias-detector|A look at a 2026 Wikimania Hackathon Project – Wikidata Bias Detector]
- nlnet Foundation / Inventaire Split - a short article on this standalone Wikidata-federated Bibliographic database.
- Maltese national Book Council and WM Malta renew partnerhship: Wikidata to support and feed Maltese Wikipedia.
- [Diffblog:wikisignals-org-helping-editors-evaluate-reference-reliability|Wikisignals.org: Helping Editors Evaluate Reference Reliability] - the project aims to add to news-related organisation entities to help feed Wikipedia infoboxes with structured data.
- Videos:
- India's Software Stories: A Hands-on Workshop with Software Heritage, Commons and Wikidata - a Wikimania Lightning talk with Mathilde Fichen and Pavan Santhosh. (Session page)
- The Art of Editing Wikidata (Africa Wiki Women) - Guest host David Palfrey will share valuable insights and help newcomers uncover the mysteries of editing Wikidata, this session is in collaboration with Art+Feminism.
- (no audio) Tutorial: Add Geoshape to Wikimedia Commons and connect it to its Wikidata Item - Anne Chen gives a visual demonstration of the steps provided in this google doc, found on the WikiProject IDEA page.
- LIVE Wikidata Editing #124 is streaming today, 20:00 CEST (18:00 UTC)!
- (Bahasa Indonesian) Wikimedia Indonesia have released 4 short videos on editing practices, querying, basic structure and data quality of Wikidata.
- (Deutsch) ZB MED LAB | The Carpentries - aimed at researchers and professionals who work with data, a series of tutorials and workshops to teach you Wikidata, Python, R, OpenRefine and more.
Tool of the week
- Cradle-gadget is a tool by User:DanielyepezgarcesThis is an interactive, schema-based form editor that works directly within Wikidata item pages. It allows users to check, view, add, modify, or delete claims in a modern sidebar drawer or a dedicated special page, aligned with the Wikimedia design guidelines. This is the easiest way to exploit the benefits of Wikidata entity schemas, powered by ShEx.
Other Noteworthy Stuff
- The 2026 OpenRefine User Survey is now open. (Note that a link to a feature-prioritization survey is provided at the end of the Google Form so don't miss that if you want to influence what should get more focus.)
Newest properties and property proposals to review
- Newest properties:
- General datatypes:
- particularly (qualifier for statements to refine a value that applies more generally, when the statement applies especially to a more specific value; a more specific qualifier than "including" (P1012))
- incumbent before dissolution (entity incumbent in a position before its dissolution for an election)
- External identifiers: CINE21 TV program ID, GCD character ID, ODiD ID, 365chess.com tournament ID, NHK ONE program ID, CINE21 company ID, Fmfenxiang seiyuu ID, Fmfenxiang sound ID, Elite Prospects team ID, Elite Prospects stadium ID, r-hockey.ru team ID, Classicalive artist ID, Apple Maps place id, HAND ID, Brazilian Fauna Taxonomic Catalogue ID, Dicionário da Língua Portuguesa ID, Giovani Artisti italiani ID, MusiciansPage artist ID, LinkedIn numeric company ID, MissEvan voice actor ID, Music & Opera artist ID, Dubbinfo ID, GAS actress ID, EU Treaties and Agreements database ID, syukou-club(X-DIABLO) actress ID, sukumizu.tv model ID, Paradise TV Person ID, Regional heritage of Wallonia ID
- General datatypes:
- New property proposals to review:
- General datatypes:
- filing unit code
- has Member (has member)
- introduced to (region outside the natural range of a taxon into which it was introduced through direct or indirect human activity)
- External identifiers: Lift-World lift ID, Schiffsdatenliste ID, marketswiki, National Palace Museum Digital Archive ID, Information Commissioner's Office registration reference, Registry of Type Design ID, Ariana Museum ID, Emulation General Wiki article ID, Georgian Cultural Heritage GIS Portal immovable object ID, Sofia monuments register ID, Georgian Cultural Heritage GIS Portal museum ID, Georgian Cultural Heritage GIS Portal movable object ID, Georgian Cultural Heritage GIS Portal stone carving ID, Georgian Cultural Heritage GIS Portal protection zone ID, Georgian Cultural Heritage GIS Portal wall painting ID, Georgian Cultural Heritage GIS Portal documentation record ID, Georgian Cultural Heritage Portal movable object ID, RIdIM ID, Weibo ID, Weibo username
- General datatypes:
You can comment on all open property proposals!
Did you know?
- Query examples: Ten longest State of the Union adress in the USA
- Schema examples: object with inscription - schema for objects with inscriptions (Q1640824)
- Newest WikiProjects:
- WikiProject Highlights: Project Ontology added a Metaclasses page
- Newest database reports: Sitelink statistics by User:Pasleim.
Development
- Sustainability: We continued the work on migrating usage tracking on Wikipedia and co to the extension database cluster (phab:T424185)
- Watchlist and recent changes on Wikipedia and co: We finished our review of a sample of Wikidata edits sent to Wikidata and co in order to better understand which remaining ones are not useful. It will soon be published on Commons.
- Query Service: We continued the work on preparing the Query Service UI for the migration from Blazegraph to QLever and will move to Query Builder and Quality Constraints next
You can see all open tickets related to Wikidata here. If you want to help, you can also have a look at the tasks needing a volunteer.
Weekly Tasks
- Add labels, in your own language(s), for the new properties listed above.
- Contribute to the showcase Item and Lexeme above.
- Govdirectory weekly focus country: Seychelles
- Summarize your WikiProject's ongoing activities in one or two sentences.
- Help translate or proofread the interface and documentation pages, in your own language!
- Help merge identical items across Wikimedia projects.
- Help write the next summary!
This Month in GLAM: July 2026
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Wikidata weekly summary #745
[edit]
week leading up to 2026-08-17. Missed the previous one? See issue #744.
Events
- Upcoming events:
- WikiLoves Pride / Australia, 15 August, drop-in online for a collaborative editing session on LGBT+ representation on Wikidata, Wikipedia and Commons.
- Drop-in and Wikidata, 27 August, WM Australia also hold a drop-in Wikidata ediitng sesison.
- Open Heritage - Wikidata Islamic Civilization Contest from September 1 - 30, 2026. Register for news.
- A Wikidata training webinar will be held August 25.
- Looking ahead: Hands-on workshop: Wikidata: An Open Knowledge Graph for Research and Beyond - Digital Humanities Lab, 12.11.2026, 14:15-15:45 CEST.
Press, articles, blog posts, videos
- Blogs:
- Papers: Cultural information bubbles: A new approach for automatic ethical evaluation of digital artwork collections based on Wikidata by M. Zhitomirsky-Geffet and S. Minster, (2026).
Tool of the week
Other Noteworthy Stuff
- WM Australia is funding partner projects for 2026 - 2027, for Australian organisations or individuals who want to build projects for open and free knowledge, including Wikidata.
- Job Vacancies: (Interim) Engineering Manager / Wikidata for Wikimedia Projects
- Survey: What content would you like to see on the Wikidata Social media channels? - only want to hear about Wikidata events or news, would like to see more use-cases of Wikidata, or perhaps you'd like more beginner or advanced Wikidata tutorials? Let us know in this short survey.
- We are setting up to apply for recognition of a new Wikimedia user group, Wikimedians for Data Organization and Quality. The group's goal will be to improve the organization and quality of data, particularly structured data, in Wikimedia projects. You can see more details in the group's home page and, if you wish, you can contribute to the discussion in its talk page. We invite you to be a part of this proposed user group by adding your Wikimedia signature to the Interested Parties section of the group's page.
Ege Atacan Doğan and Peter Patel-Schneider
Newest properties and property proposals to review
- Newest properties:
- General datatypes:
- located at a height (a property intended to indicate the height of any objects from the ground)
- contributed to narrative universe (narrative universe that a person contributed to)
- name type (type of noun or name the sense is)
- introduced to (region outside the natural range of a taxon into which it was introduced through direct or indirect human activity)
- External identifiers: d anime store Work ID, d anime store Person ID, Crank-in! drama ID, Crank-in! animation ID, Crank-in! person ID, STAPI Book ID, STAPI Episode ID, STAPI Performer ID, Qidian Author ID, Crank-in! movie ID, DBNL chamber of rhetoric ID, Criticker Film ID, Lulu spotlight ID, German Maritime Museum Ship ID, Rakuten TV adult maker ID, izohli.uz word ID, Ciel d'oc publication ID, Lift-World lift ID, STAPI Comics ID, Qidian Book ID, National Palace Museum Digital Archive ID, DMM maker ID, Registry of Type Design ID, Fediverse address, Information Commissioner's Office registration reference, WorldFootball.net ID (new), Sofia monuments register ID, Georgian Cultural Heritage GIS Portal immovable object ID, Ariana Museum ID, RIdIM ID
- General datatypes:
- New property proposals to review:
- General datatypes:
- school of martial arts (school or style of martial arts this person studied)
- has official Italian government website (tems that the item has an official website operated by or belonging to the Government of Italy)
- Infraestructuras de Portugal ID (station code Infraestruturas de Portugal)
- External identifiers: Silloria perfumer ID, Silloria notes ID, Beer Advocate beer style ID, BBFC release ID, Identifier for a person in norwegian polar history, Filmová databáze seriál ID, Serbo-Croatian Literary Language entry ID, dbv member slug, idw member ID, Sky programme ID, immaterieelerfgoed.be ID, Geoshape Repository ID, FIBA.basketball event ID, SEASLUG.WORLD species ID, Silloria brands ID, Identifiant d'un(e) auteurice dans le catalogue du COMDT, Identifiant d'un(e) ou plusieurs musicien(ne)s sur Paraulas en òc, Identifiant d'un(e) ou plusieurs musicien(ne)s sur Trobasons, Kinolights Parson ID, Kinolights Work ID, Identifiant d'un ouvrage dans le catalogue du CREDD'O, parliament.uk constituency ID, Europeans In East Africa ID, Gesamtkatalog der Wiegendrucke ID, Judoresults judoka ID, Silloria perfumes ID, Scent Base perfumes ID, IMCDB work ID, identificador de sardana de somarxiu.cat, Xcity maker ID, CrashPad Series performer ID, PinkLabel.TV performer ID, Seiyu Grand Prix Person ID, animehack Person ID, animehack Program ID, animehack movie ID, XBIZ.com topic ID
- General datatypes:
You can comment on all open property proposals!
Did you know?
- Query examples:
- Schema examples: (E528) Space Telescope, instrument in outer space for observing distant space objects
- Newest WikiProjects:
- Newest database reports: Recent deaths (this report can help for updating Wikipedia articles
Development
- Query Service: We started preparing the constraint checks for the migration from Blazegraph to QLever.
- Page load times: We looked into unnecessarily loaded modules related to the Wikidata Bridge to see if we can remove them and speed up page load times.
- Wikipedia and co:
- We worked with English Wikipedia to optimize the CiteQ module code to generate less usage tracking for "Anonymous".
- We checked a variety of Mediawiki areas where Parsoid deprecation may lead to breakages.*
- Sustainability: We are planning to migrate the usage tracking data to the X1 extension cluster. We are checking which queries involving entity usage will need re-writing or updating.
- REST API: We finished adding support for getting a full Lexeme and started work on creating Lexemes.
You can see all open tickets related to Wikidata here. If you want to help, you can also have a look at the tasks needing a volunteer.
Weekly Tasks
- Add labels, in your own language(s), for the new properties listed above.
- Contribute to the showcase Item and Lexeme above.
- Govdirectory weekly focus country: Seychelles
- Summarize your WikiProject's ongoing activities in one or two sentences.
- Help translate or proofread the interface and documentation pages, in your own language!
- Help merge identical items across Wikimedia projects.
- Help write the next summary!
Organized Labour September Editing Event
[edit]
You're invited to join the Organized Labour community editing event, a cross-wiki event taking place throughout September 2026!
The campaign brings together Wikimedians interested in improving coverage of organised labour, workers, trade unions, and labour history. We have confirmed collaborations with Wikipedia language editions in English, Dutch, Persian, Serbo-Croatian and French. If you want to add other language editions or other wiki projects you are strongly encouraged to do so! This event spans geography and languages!
This is a one-time invitation. You're receiving it because you previously signed a petition related to Wiki Workers United (WWU). We hope you'll join us!
Regards ~ Shushugah (talk) 14:18, 19 August 2026 (UTC)
Wikidata weekly summary #746
[edit]
week leading up to 2026-08-24. Missed the previous one? See issue #745.
Events
- Upcoming events: Wikidata Lab XLVIII: Outreach Dashboard, August 27, at 15:30 UTC. Come see and discuss new Wikidata functionalities of the Outreach Dashboard!
Press, articles, blog posts, videos
- Blogs: Finishing Outreachy with Wikidata support for Wikiscore by ACorrea WMB and AnaMRRuiz
- Papers: Climate Knowledge Graph (ClimateKG) - A partnership project to make a knowledge graph of the 10,000 page Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report.
Tool of the week
- Lex-Olympia — A new tool for improving Wikidata Lexemes. Try it out and share your feedback with the developer and community.
Other Noteworthy Stuff
- Research study: AI tools for content verifiability on Wikidata. Researchers from King's College London are inviting Wikidata editors (especially those working on health or GLAM/cultural heritage content) to participate in a two-stage study (1-hour interview + 2-hour workshop) exploring how AI tools can support content verifiability. Participants receive compensation via Love2Shop vouchers. Sign up here (Qualtrics form).
Newest properties and property proposals to review
- Newest properties:
- General datatypes: none
- External identifiers: BBFC release ID, Silloria brands ID, Silloria notes ID, Silloria perfumer ID, Kinolights person ID, Kinolights work ID, BeerAdvocate beer style ID, immaterieelerfgoed.be ID, idw member ID, Geoshape Repository municipality ID, Filmová databáze seriál ID, FIBA.basketball event ID, dbv member slug, Silloria perfumes ID, SEASLUG.WORLD species ID, parliament.uk constituency ID, Judoresults judoka ID, Gesamtkatalog der Wiegendrucke ID, IMCDB work ID, Norwegian polarhistory ID, CREDD'O catalog ID
- New property proposals to review:
- General datatypes:
- substance control status (control regime a substance is placed under in a jurisdiction or by an international treaty — schedule, class, or explicitly uncontrolled; qualify with "applies to jurisdiction" (P1001) and start/end time)
- Bibcode access status (Indicator of the access statement for a document on Bibcode)
- External identifiers: wowKorea Parson ID, wowKorea Work ID, TOWER RECORDS ONLINE artist ID, Antarctic Protected Areas database ID, WikiPepper pepper ID, Inventory Intangible Cultural Heritage in the Netherlands ID, NAKED(X-DIABLO) actress ID, Weibo ID, Umamusume Wiki article ID, Identifiant d'un(e) auteurice dans le catalogue du CREDD'O, Georgian NAPR identification number, Companyinfo.ge corporation ID, T&F NCAAdb athlete ID, UkrBIN ID, Platform for Taiwan Religion and Folk Culture record identifier
- General datatypes:
You can comment on all open property proposals!
Did you know?
- Query examples:Railway stations map in the two Koreas
Development
- REST API: We are continuing the work on making it possible to create a Lexeme and will then move on to adding statements to Lexemes.
- GraphQL: We are working on moving the Item search from cirrussearch to mariadb to be able to add more functionality.
- Newcomer homepage: We are updating the text to move it away from some Wikipedia-specific phrases (e.g. articles)
- Mobile editing: We worked on not showing edit links on old revisions and diffs since those can not be edited.
- Page load times: We continued looking into unnecessarily loaded modules related to the Wikidata Bridge to see if we can remove them and speed up page load times.
You can see all open tickets related to Wikidata here. If you want to help, you can also have a look at the tasks needing a volunteer.
Weekly Tasks
- Add labels, in your own language(s), for the new properties listed above.
- Contribute to the showcase Item and Lexeme above.
- Govdirectory weekly focus country:
- Summarize your WikiProject's ongoing activities in one or two sentences.
- Help translate or proofread the interface and documentation pages, in your own language!
- Help merge identical items across Wikimedia projects.
- Help write the next summary!
Capacity Exchange: July-August 2026
[edit]Hello everyone,
You are receiving this message because you listed yourself on the Capacity Exchange CapX Meta-Wiki page, and we believe your feedback on the platform is extremely valuable.
After three years of development, Capacity Exchange (CapX) has entered a new cycle. Funded through a Wikimedia CH grant, from July to December 2026, we will be working to bring the tool to communities around the world and gather feedback from users, with a particular focus on community managers and leaders.
In this cycle, we are focused on building relationships with community managers and leaders, introducing them to CapX and exploring how it can help them carry out their work more easily and with better data to inform their decisions. We also want to understand how the tool could be improved for this audience and explore ways of adapting it to their needs.
Finally, we are presenting the possibilities of working with the CapX API to develop tools and solutions tailored to specific community needs.
→ Read more in this blog
You can get in touch with us by email at capx@wmnobrasil.org, send us a message in our Telegram group, or contact us directly through your CapX profile.
Explore CapX, share it with your community, give us your feedback, and build upon it. Find out more about our activities and documentation on our Meta-wiki page.
If you have a question, you can join our bi-weekly community call this Sunday.
Warm regards,
Benny Lin, on behalf of the CapX team.
✒ Bennylin 07:46, 27 August 2026 (UTC)
Wikidata weekly summary #747
[edit]
week leading up to 2026-08-31. Missed the previous one? See issue #746.
Discussions
- New requests for permissions/Bot:
- INAPerson 1 - Task/s: Create Wikidata pages entries for mostly French journalists, using INA (French National Audiovisual Institute) catalogue as reference.
- DifoolBot 9 - Task/s: (1) Fix VIAF cluster ID (P214) statements deprecated for conflation (Q14946528) once VIAF has split the cluster. (2) Deprecate VIAF ID values that VIAF has since redirected or abandoned, and add the redirect target if it is not already on another Wikidata item.
- Openpep - Task/s: Maintenance of Politically Exposed Person (PEP) data on Wikidata for Thai government officials.
- DutchFixer - Task/s: Reformat Dutch verb forms that are listed as past tense (Q1994301), participle (Q814722) to simply use past participle (Q12717679)
- Closed request for permissions/Bot:
- DL2204bot 4 - Closed as Approved
- Yirbot - Closed as Approved
- RupumpedBot - Closed as Approved
- Survey: The OpenRefine 2026 User Survey is open.
Events
- Upcoming events:
- WikidataCon 2027 will be hosted in Istanbul, Türkiye from 29 to 31 October 2027, in partnership with the Wikimedians of Turkic Languages User Group. The dates mark Wikidata's 15th birthday. More details to follow.
- Wikidata Query Service Days, October 17-23: The next online event by Wikimedia Deutschland will be about the migration from Blazegraph to QLever. Learn what's changing, try the new system, and get help rewriting your queries. Register now!
- Next LD4 Wikidata Affinity Group session – 1 September 2026: Adélie Ranville will present how Wikidata can support literature reviews. Event page — 16:00 UTC / 6pm CEST.
- OpenStreetMap X Wikidata Meetup #92 Sep. 7 Time: 19:30-21:00 UTC+8 at Mozilla Community Space Taipei (Q61752245).
- Looking ahead: Wikidata Day in New York City 2026 - hosted by the Pratt Institute School of Information on October 30, 19:00 - 23:00 CEST.
Press, articles, blog posts, videos
- Blogs:
- Beyond Wikipedia: A Technical Workshop Introducing Moroccan Teachers to Wikidata and the Wikimedia Technical Ecosystem
- Wiki OTO 2026: A new collaboration to make African women more visible
- Six Months of Building Leaders, Bridging Knowledge Gaps, and Strengthening Community by Africa Wiki Women
- Wikidata as a PID Hub for Research Entities: QIDs Alongside ORCID, ROR, and ISNI - by CASRAI, a community-maintained open vocabulary for research administration project.
- Videos:
- Wikidata Lab XLVIII: Outreach Dashboard, WM Brasil and EduWiki present Wikidata functionalities on the dashboard, including some new things coming.
- WikiTree How-To: BEE Extension for Wikidata - WikiTree is a family-tree generator and now includes a Wikidata-powered extension that will help surface notables for inclusion.
- LIVE Wikidata editing #125
- Wikidata plug-in for ArchivesSpace
Tool of the week
- Timetrail is a tool by Nahom Araya it visualizes the movement of Wikidata items over time by mapping their associated events and locations. Enter an Item ID/Name and select a supported property from the dropdown list to fetch a timetrail.
Other Noteworthy Stuff
- The Wikimedia Deutschland software development plan has been updated to include activity estimates for the third quarter (Q3).
- The Wikidata development team is proposing a redesign of Special:NewItem with a warning banner and conflict-of-interest checkbox to reduce the increase in promotional editing. We need your feedback on the wording and designs. Head over to Wikidata:Reducing promotional editing and share your thoughts on the talk page by 15 September.
- Due to an increase of non-notable item creation, and their subsequent request for deletion (and undeletion), a new page has been created. Requests for new items exists for those who are unsure if their item idea is notable enough, or have a conflict of interest. The Wikidata Community can help by reviewing requests and offering advice.
Newest properties and property proposals to review
- Newest properties:
- General datatypes:
- substance control status (control regime a substance is placed under in a jurisdiction or by an international treaty — schedule, class, or explicitly uncontrolled; qualify with "applies to jurisdiction" (P1001) and start/end time)
- External identifiers: animehack program ID, animehack movie ID, animehack person ID, Xcity maker ID, XBIZ.com topic ID, WikiPepper pepper ID, Seiyu Grand Prix person ID, PinkLabel.TV performer ID, Antarctic Protected Areas database ID, Infraestructuras de Portugal ID, Umamusume Wiki article ID, Tower Records Online artist ID, Inventory Intangible Cultural Heritage in the Netherlands ID, SOMARXIU.CAT sardana ID
- General datatypes:
- New property proposals to review:
- General datatypes:
- Texas Legislators: Past & Present ID (identifier for a legislator on the Legislative Reference Library of Texas website)
- file page start and file page end (indicate a page number of a pdf file, if multiple pages is involved)
- Clubhouse (A proposal to denote the buildings occupied by members clubs. This can be useful when the clubs change clubhouse or merge or cease to exist.)
- LPF rating (film and media rating in Malaysia by the Film Censorship Board)
- phonetic synthesis method (phonetic synthesis method used to process the recorded voice from a human source to build a voice bank)
- External identifiers: Identifiant dans le Mémorial du clergé (1914-1918), sgpbusiness.com ID, Redalyc author ID, Brussels Inventory of Architectural Heritage glossary ID, Brussels Inventory of Natural Heritage taxon ID, Inventory of Movable Heritage designer ID, Brussels Inventory of Movable Heritage object type ID, Brussels Inventory of Movable Heritage material ID, Brussels Inventory of Movable Heritage technique ID, Lunarstorm person ID, World Athletics competition ID, Archive in Baden-Württemberg ID, Arcinsys Niedersachsen/Bremen ID, Arcinsys Hessen ID, Sharjah Dictionary word ID, GenWiki, Stereo Ve Mono release ID, Kudos author ID, Stiftungsarchive ID, Archivportal Thüringen ID, findbuch.net subdomain, Onderwijstermen Taalunie ID, Allotrope Foundation Ontology function ID, Allotrope Foundation Ontology process ID, Allotrope Foundation Ontology quality ID, Allotrope Foundation Ontology role ID, Allotrope Foundation Ontology result ID, Identifiant de l'annuaire Drag France, Statistics Finland Concept Database ID
- General datatypes:
You can comment on all open property proposals!
Did you know?
- Query examples:
- Schema examples: English adverb (E311)
- Newest WikiProjects:
- Project Organized Labour, a companion Project to Wikipedia's WikiProject, it is established to expand articles and items, properties and ontologies for collective bargaining/organised labour and trade union practices.
- Project Chublets Software
- WikiProject Highlights: Project Ontology added subpages for CC0, DOLCE and BFO Class order.
- Newest database reports: Deaths at Wikipedia - This report collects items missing a P570 (date of death) but they do feature in a Wikipedia 'Recent Deaths' article.
Development
- Query Service: We have continued adapting the Constraints system for the migration from Blazegraph to QLever.
- Wikidata integration in the Wikimedia projects:
- We are investigating how to treat watchlist and recent changes entries from Wikidata that are about adding, changing or removing a sitelink. These seem to be category of Wikidata changes not everyone is interested in and a candidate for filtering.
- We looked into how to make the process of adding Wikidata support for a newly created Wikimedia projects less manual for the team and did a proof of concept for automating some of the database operations.
You can see all open tickets related to Wikidata here. If you want to help, you can also have a look at the tasks needing a volunteer.
Weekly Tasks
- Add labels, in your own language(s), for the new properties listed above.
- Contribute to the showcase Item and Lexeme above.
- Govdirectory weekly focus country: Tunisia
- Summarize your WikiProject's ongoing activities in one or two sentences.
- Help translate or proofread the interface and documentation pages, in your own language!
- Help merge identical items across Wikimedia projects.
- Help write the next summary!
Wikidata Platform Newsletter - September 2026
[edit]This is the 10th issue of our monthly newsletter! The next issue will be published in October 2026.
- Blazegraph Service Support in v2: In the last quarter, the Wikidata Platform team has investigated Blazegraph-specific features that are not one-to-one compatible with the SPARQL 1.1 standard and our chosen backend for the v2 system, QLever. Working with a contracted SPARQL expert, we’ve drawn the following conclusions on what will be supported and available in v2, what won’t, and how WDQS users can continue to support their use cases. Below is a summary of the impacted features.
| Category | Feature | Status |
|---|---|---|
| Services | wikibase:mwapi | Evaluation pending |
| wikibase:decodeURI | not supported in v2 | |
| GAS | Supported in v2 | |
| wikibase:box | Supported in v2 | |
| bd-sample | Supported in v2 | |
| bd-slice | Supported in v2 | |
| wikibase:around | Supported in v2 | |
| wikibase:label | Supported in v2 | |
| Functions | geof-globe | Supported in v2 |
| geof-latitude | Supported in v2 | |
| geof-longitude | Supported in v2 | |
| geof-distance | Supported in v2 | |
| is-some-value | Supported in v2 | |
| Syntax | named-subquery | Supported in v2 |
| query-hint | Supported in v2 |
Queries that either do not use Blazegraph-specific features or use the features that can successfully be rewritten account for ~86.5% of WDQS v1 query volume. The only feature that cannot be supported, decodeURI, is largely a tool used to improve readability and only accounts for ~.4% of traffic volume. The MediaWiki API (mwapi) service, which accounts for ~13% of query volume on v1, cannot be supported by WDQS v2 with exact parity. Wikimedia Deutschland’s Reuse team is currently evaluating a path to support for mwapi service that leverages the other data access methods maintained by their team.
The underlying rewrite logic for these features can be found on Wikitech, where you can leave feedback directly on the discussion page. As mentioned in previous newsletters, a tool that will rewrite Blazegraph-specific SPARQL queries into a format that is compatible with our new QLever implementation is currently under development and will be released and demo’d for the community at the Query Service Days event during October.
- Query Service Days event: We are excited to announce the upcoming Wikidata Query Service Days (October 17-23, 2026), an online event focused on the migration of the Wikidata Query Service from Blazegraph to QLever. The event is organized by Wikimedia Deutschland in collaboration with the Wikimedia Foundation's Wikidata Platform team. It will be a space for the community to come together around this major transition.
This event is designed to:
- Update the community on the current state of the migration
- Help people get familiar with the new system and try it out
- Explain what is changing and what you need to adapt to
- Provide hands-on support for rewriting queries
- Give the development teams deeper insight into community use cases and concerns
The event will be fully online, with live sessions spread over one week (October 17-23). Sessions will be recorded and made available afterwards. We will try to cover different time zones by repeating key sessions at multiple times. Register here to get the access link to the event: Event:Query Service Days 2026.
- Rate Limiting update: Work on rate limiting is under progress for WDQS v2. Many targeted fixes have been deployed for WDQS v1 to protect against harmful use. In the new service, we will aim to implement cost-based rate limiting. This implementation is still being evaluated and will be experimented with over the coming months. Our end goal is to provide a stable service with equitable access to all users.
- Reminder to Report Use Cases: We encourage all members of the community to continue helping us identify higher-risk areas, namely SPARQL queries that are highly complex, by reporting use cases on our high-impact use cases and tools page. As a reminder, any use case can be reported through this mechanism. The purpose of this page is to give the WDP team visibility into user-level migration needs.
- Blazegraph Migration Office Hour (September session): Our next Blazegraph Migration Office Hour will take place Tuesday, 8th September 2026 at 16:00 UTC. This session is focused on supporting the migration away from Blazegraph as the backend of WDQS. Whether you have questions, need clarification, or want to discuss how your use case may be affected. You can register for the session via the event page.
In preparation, we encourage you to add questions, feedback, or migration-related support needs to this etherpad. This helps us shape the agenda and focus on the most relevant topics during the session.
