Release listing - schema.org

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Release Overview Description 29.4
2025-12-08

Version 29.4 - Many schema and infra updates

29.3
2025-09-04

Version 29.3 - Expanded vocabulary for recipe ingredient lists and marketplaces. Some other small updates

29.2
2025-05-13

Version 29.2 - Patch release to fix bug introduced in 29.0. Added a few new properties. Some documentation updates.

29.1
2025-04-25

Version 29.1 - Patch release to fix issues in 29.0. Added a few new properties and classes. Some README updates.

29.0
2025-03-24

Version 29.0 - New and updated vocabulary in the area of financial incentives, legislation, and product shipping. Various build and documentation fixes.

28.1
2024-11-22

Version 28.1 - Various small additions, fixes, build improvements and site updates.

28.0
2024-09-17

Version 28.0 - Added support for member programs. Various build improvements and site updates.

27.02
2024-07-01

Version 27.02 - Migrate staging from webschemas.org to staging.schema.org.

  • PR #3556: Updates references for webschemas.org to staging.schema.org.
  • PR #3557: Fix formatting for markdown documentation files.
27.01
2024-06-24

Version 27.01 - Site redesign.

27.0
2024-05-20

Version 27.0 - Adding support for GS1 Digital Link and a few smaller updates.

26.0
2024-02-12

Version 26.0 - Restoring Physician subtype of MedicalBusiness.

25.0
2024-01-22

Version 25.0 - Add support for Certifications and a few smaller updates.

24.0
2024-01-09

Version 24.0 - Adding vocabulary for describing types of digital sources (in collaboration with IPTC), and clarifying subtypes of Physician.

23.0
2023-10-17

Version 23.0 - A collection of small fixes based on publisher feedback.

  • Issue #2858: Added agentInteractionStatistic to provide a way of counting interactions where the item of interest is in an "agent" rather than "object" role on the relevant Action.
  • Issue #3376: Provided a clearer way to indicate non-Comment items that Comments are attached to, by documenting the use of parentItem on CreativeWork in general. Also made it more explicit that this is especially applicable to those creative works beneath Comment in the type hierarchy which are mentioned in the definition, i.e. Question and Answer.
  • Issue #3389: Added Comment to the domain of sharedContent to better support link shares on replies/comments even though a lot of sites now support this.
  • Issue #3390: Expanded range of uploadDate to include DateTime, correcting a longstanding bug.
  • PR #3347: Improved error reporting in case the parsing of JSON-LD examples fails.
  • PR #3348: Improvements to unit-testing code.
  • PR #3349: Fixed all RDF comments that did not finish with a punctuation. Plus improved reporting of these.
22.0
2023-06-29

Version 22.0

21.0
2023-05-23

Version 21.0 - Added PoliticalParty

20.0
2023-05-22

Version 20.0 - Fixed a typo in maximumVirtualAttendeeCapacity.

19.0
2023-05-19

Version 19.0 - indicating measurement techniques with defined terms.

18.0
2023-05-18

Version 18.0 - Improving our ability to talk about text objects and thumbnail images for creative works.

17.0
2023-05-17

Version 17.0 - This is a small update, with small fixes.

16.0
2023-05-16

Version 16.0 - This release includes miscellaneous fixes, some additions around courses, an update to the vocabulary around statistical observations, as well as various eCommerce additions.

Changes in new area:

Changes to documentation:

  • PR #3277: Consistent formatting of 'GitHub' in README.md.

Site Improvements

  • Issue #3305: Fixed formatting of URIs for references to some terms from external vocabularies in CSV output files.
  • PR #3202: Text for acknowledgements separated out from turtle definition files into markdown formatted files. Links to acknowledgements identified by use of contributor predicate in term definitions.
  • PR #3204: Fixes to many examples that were failing internal validation tests.
  • Issue #3289: Fixes typo in schemaorg.owl.
15.0
2022-10-25

Version 15.0 - This release includes miscellaneous fixes as well as various eCommerce additions.

Vocabulary

Changes in Core section:

New:

Site Improvements

14.0
2022-03-17

Version 14.0 - This release includes improvements and additions around audience restrictions for eCommerce.

Vocabulary

Changes in Core section:

New additions:

Site Improvements

  • PR #2990: Update supporting Python version and libraries - RDFLib 6.1, Python 3.10.
13.0
2021-07-07

Version 13.0 - see planning pages. This release includes a number of terms proposed by the Bioschemas project, alongside other additions around e-commerce returns policy markup, job postings, and MediaReview markup.

Vocabulary

Changes in Core section:

New additions:

Site Improvements

12.0
2021-03-08

Version 12.0 - see planning pages. This release consists primarily of additions to the Pending section of schema.org, alongside some bugfixes and improvements to core terms.

Vocabulary

Changes in Core section:

New additions:

Site Improvements

  • PR #2706: Replaced TravisCI with GitHub Actions for continuous integration testing of changes to the schemaorg repository.
  • issue #2822: Updated punctuation used in breadcrumb path displayed at the top of property pages to reflect that a property is not a subtype of the Property type.
  • PR #2789: Identified and corrected 80+ broken links within site. Created a localised link checking script (brokenlinkcheck.py) for future testing possibilities.
  • PR #2800: Reorganized directory structure of repository and development environment to separate out software and test elements (into a software subdirectory) from vocabulary definition elements.
  • PR #2814: Completed process of moving Schema.org to https. This step included the move to https of vocabulary term definitions and consequent change to https of the canonical URI displayed under the term pages [more...] tag. The web site will continue to respond to both http and https URLs. Download files will continue to support both protocols.
  • PR #2815: Fixed links in release page that return a 404 response.
11.01
2020-12-08

Version 11.01 - see planning pages. This interim release consists primarily of bug fixes and site improvements.

Site Improvements

  • Fix invalid link to home page on Attic section (retired vocabulary).
  • Reinstated home pages for auto, bib, health-lifesci and meta sections (2023 note: these are no longer used).
  • Fix invalid links to section home pages on Schemas page.
  • Update wording on pages for terms that are superseded, new or retired.
  • Reinstated link to section home page for non-core terms.
11.0
2020-11-30

Version 11.0 - see planning pages. This release consists primarily of additions to the Pending section of schema.org, alongside some bugfixes and improvements to core terms.

Vocabulary

Changes in Core section:

New additions:

Site Improvements

  • PR #2706: Improvements to underlying site build architecture including separation of vocabulary definition and display logic; move to Python 3; and simplified local build and test processes. Full Type hierarchy page is now more usable and accessible (collapsible navigation). Copy example to clipboard button added to Examples on term definition pages.
  • PR #2760: Added structured representation of JSON-LD examples tab to Examples display on term definition pages.
  • PR #2726: Removed previous RDFa term description from within html of term definition pages, replace with equivalent JSON-LD script element.
  • issue #2747 implemented in PR #2748: Fixed invalid comment syntax in the JSON-LD element of 47 examples.
10.0
2020-09-07

Version 10.0 - see planning pages. This release consists primarily of new additions, alongside some bugfixes and improvements to core terms.

Vocabulary

Changes in Core section:

New additions:

Site Improvements

  • Issue #2663: Updated all examples to use https://schema.org instead of http://schema.org.
  • Style Guide: Added a style guide for schema authoring to the site, giving conventions for term naming and capitalization.
9.0
2020-07-21

Version 9.0 See planning pages. This release consists primarily of new additions, alongside minimal edits to core terms to integrate the new vocabulary into the larger system.

Vocabulary

Changes in Core section:

Changes in health-lifesci section:

New additions:

Site Improvements

  • Issue #2304: (implemented in PR #2654):Rationalisation of dump files. Machine readable vocabulary definition files, available from the Developers area, have been rationalised to include definitions from the core plus all sections of the vocabulary. Now download file names have been used to reflect this change. Also introduced two versions of each file, one containing http URIs the other https URIs.
8.0
2020-05-01

Version 8.0 See planning pages. This release consists of new additions.

Vocabulary

Changes in Core section:

  • N/A

New additions:

7.04
2020-04-16

Version 7.04. See planning pages. This was a minor release, with improvements relating to the COVID-19 response effort.

Vocabulary

Changes in Core section:

New additions:

7.03
2020-04-02

Version 7.03. See planning pages. This was a minor release, with improvements relating to the COVID-19 response effort.

Vocabulary

New additions:

7.02
2020-03-31

Version 7.02. See planning pages. This was a minor release, with improvements relating to the COVID-19 response effort.

Vocabulary

New additions:

7.01
2020-03-22

Version 7.01. See planning pages. This was a minor release, with improvements relating to the COVID-19 response effort.

Vocabulary

Core changes

  • N/A

New additions:

Site Improvements

  • Issue #2495: Added an example for the geographic region of a SpecialAnnouncement.
7.0
2020-03-17

Version 7.0. See planning pages.

Vocabulary

Core changes

  • Issue #2448: Removed several largely un-used medical health properties whose names were inappropriately general: action, background, cause, cost, function, indication, origin, outcome, overview, phase, population, purpose, source, subtype. Note that we do not remove terms casually, but in the current case the usability consequences of keeping them in the system outweighed the benefits of retaining them, even if flagged as archived/superseded.
  • Issue #1842: Introduced a VirtualLocation type, to support description of Events whose location is online. Added eventAttendanceMode to clarify the current attendance mode of an event (online, offline or a mix). Also added a new enumeration value for eventStatus for Event: EventMovedOnline.

New additions:

Site Improvements

  • Reinstated 301 redirect to https for http requests.
  • Issue #2412: Implemented in sdopythonapp submodule Issue #6: Enhancements to CORS support, providing appropriate responses to HTTP OPTIONS request.
6.0
2020-01-21

Version 6.0. See planning pages.

Vocabulary

Core changes

Other changes in Core section:

New additions:

Changes in bib section:

Site Improvements

5.0
2019-11-01

Version 5.0. See planning pages.

Vocabulary

New additions:

Site Improvements

  • PR #2365: Split codebase that underpins the Schema.org site into a separate repository, to simplify interaction with vocabulary definition and documentation files in the schemaorg repository area.
4.0
2019-10-15

Version 4.0. See planning pages.

Vocabulary

New additions:

Changes in bib section:

Site Improvements

  • Issue #2331: (implemented in PR #2332): Fixed mobile usability issues of site - identified by Google Search Console.
  • PR #2312: Fixes typo for rdfs:label URI.
3.9
2019-08-01

Version 3.9. See planning pages.

Vocabulary

Core changes

New additions:

Site Improvements

3.8
2019-07-01

Version 3.8. See planning pages.

Vocabulary

Core changes

New additions:

New additions:

Site Improvements

3.7
2019-06-01

Version 3.7. See planning pages.

Vocabulary

Core changes

Site Improvements

3.6
2019-05-01

Version 3.6. See planning pages.

Vocabulary

Core changes

Other changes in Core section:

New additions:

Site Improvements

  • Issue #2054: Corrected spelling in README.md file.
  • Issue #2215: Corrected display of enumeration value terms that are more than 1 subclass away from a parent Enumeration value (eg. EvidenceLevelA).
  • Issue #2212: Various fixes to examples. Identified by linter tests.
  • Issue #2209: Updates to Travis test.
  • Issue #2233: Fixed non-disply of acknowledgement text on term pages.
  • Issue #2229: Stopped the duplication of references for some types in *-types.csv download files.
  • Issue #2234: Fix to JSON-LD Context file - properties with Text in their range should not have '@type: "@id"' set.
  • Issue #2218: Split Travis tests into stages for easier reporting/analysis.
3.5
2019-04-01

Version 3.5. See planning pages. This release moved a number of new terms into the Schema.org core. It also simplifies and clarifies the Schema.org extension model, reducing our emphasis on using named subdomains for topical groups of schemas. New terms introduced in 3.5 include improvements for describing projects, grants and funding agencies; for describing open-ended date ranges (e.g. datasets); and a substantial vocabulary for Educational and Occupational Credentials.

Vocabulary

Core changes

Moved new terms into Core:

Other changes in Core section:

New additions:

Site Improvements

3.4
sdo-telesto
2018-06-15

Version 3.4 (working name 'sdo-telesto'). See planning pages. Clarifications around Series. Introduced an example showing ClaimReview of a clip within a larger media object. A lot of Small fixes and maintenance edits. Numerous additions, including employment and occupation vocabulary, a Claim type to help explore richer modeling around fact-checks, tourism-related vocabulary. Other new improvements include amendments to the legislation vocabulary, Trust Project additions, and the proposal of an inverse of the about property, subjectOf.

Vocabulary

Core changes

  • Issue #1902: Improvements to HowTo examples. See also #1895.
  • Issue #1761: Changed mis-abbreviation of Friday as "Fri" to "Fr". Per the guidelines for openingHours, Friday should be abbreviated as "Fr." In one set of examples, it was abbreviated as "Fri.".
  • Issue #1820: hyperlink to new, recommended DOI resolver.
  • Issue #1894: Added reference to cryptocurrencies in description for 'paymentAccepted' and 'currenciesAccepted' properties. For consistency, also added to description of properties: 'discountCurrency', 'price', 'priceCurrency', 'currency'. Updated the description additions to reference ISO 4217 formats, cryptocurrency Ticker symbols, LETS and other currency types including single inline examples for each.
  • Issue #1090: Clarified Series, CreativeWorkSeries, EventSeries. The Series type is now intangible, rather than having an inappropriate CreativeWork supertype. We have two subtypes of it, CreativeWorkSeries (successor to the original definition of Series, which was too generally named), plus the proposed EventSeries type. These domain-specific series types also have corresponding supertypes in CreativeWork and Event. See also Issue #447.
  • Issue #1155: Clarified that encodingFormat, fileFormat mean the same thing, converged their definitions, and made encodingFormat the preferred term.
  • Issue #1824: Fixed typos in tickerSymbol.
  • Issue #1833: Added expected type ItemList to acceptedAnswer, suggestedAnswer.
  • Issue #1799: Fixed an error in an example for Question type.
  • Issue #1686: Added an extra ClaimReview example based on a TV clip.
  • Issue #1762: Added schema mapping declarations indicating that 'name' is a subproperty of rdfs:label, and equivalentProperty of dcterms:title.
  • Issue #1729: Improvements around HowTo, including declaration of CreativeWork as its supertype, and introduction of 'step' property instead of 'steps'.
  • Issue #1732: Changed HowToSection and HowToStep (which support the HowTo type) to have CreativeWork as their supertype.
  • Issue #1723: Introduced FAQPage, which represents a WebPage presenting one or more "Frequently asked questions".
  • Issue #1935: Extend the contentRating property to also expect the Rating type.
  • Issue #2020: Extend the byArtist property to also expect the Person type.

New additions:

  • Issue #1670: Add a subjectOf to Thing as an inverse property of about.
  • Issue #1689: Add EmployerAggregateRating as a subtype of AggregateRating to differentiate ratings for the entity as an employer and the reviewAspect property to Review and Rating to allow authors to specify the facet or relevant part of being reviewed.
  • Issue #1698: Add a Occupation type with the supporting properties, many of which existed for JobPosting. A Person's occupation can be specified with hasOccupation. The Occupation's estimatedSalary is expressed as a MonetaryAmountDistribution, a subtype of the new QuantitativeValueDistribution type.
  • Issue #1787: Narrowed the range of legislationJurisdiction to AdministrativeArea rather than Place. Broadened the range of legislationIdentifier to include URL, to match with the description of the property.
  • Issue #1815: Added proposal for TouristDestination, TouristTrip, and Trip plus examples.
  • Issue #1886: Add basic sdPublisher and sdDatePublished (and in #1866, sdLicense) markup, e.g. for when structured data created elsewhere.
  • Issue #1866: Added a proposed sdLicense property.
  • Issue #1776: Introduced DefinedTerm as a super type of the existing proposed term CategoryCode, to support non-categorical controlled terms.
  • Issue #1828: Added a Claim type, to make explicit a concept suggested in the ClaimReview fact-checking markup.
  • Issue #1773: Add a MediaSubscription type with the supporting properties to describe a subscription for viewing media. Also added ActionAccessSpecification to allow authors to specify when a ConsumeAction requires a subscription or a purchase.
  • Issue #1744: Improvements around Legislation vocabulary. Changed definition of "Legislation" to make it clear that it is a document. Deleted numerous inverse properties. Fixed Range on legislationType (CategoryCode). Added legislationJurisdiction as a subproperty of spatialCoverage. Fixed Definitive into DefinitiveLegalValue to align with other values. Expanded the definition of legislationIdentifier to clarify that it can apply to string or URIs. Fixed and adjusted the examples accordingly.
  • Issue #1709: Added an Occupation type and examples, to represent professions.
  • Issue #1389: Updated SpeakableSpecification-related properties, 'xpath' and 'cssSelector' to explain how they relate to 'WebPageElement'. Allowed both properties to be expected on that type.
  • Issue #1525: Improvement suggested by Trust Project, including addition of AskPublicNewsArticle, ownershipFundingInfo and diversityStaffingReport properties, editorial tweaks to dateline property. Second phase of additions included knowsAbout, knowsLanguage proposals (#1688.)
  • Issue #1950: Added CorrectionComment and a property correction to point to it, as suggested by the Trust Project.

Changes in other named extensions

  • Issue #1882: Fix to OccupationalTherapy - Made OccupationalTherapy a simple class instead of a typeof schema:MedicalSpecialty
  • Issue #1677: Added (and #1900 improved) autos documentation.

Site Improvements

  • Issue #1634: Aliased 'rdf:HTML' to 'HTML' in JSON-LD context definitions.
  • Issue #1879: Fix to duplicate and missing properties listings in the CSV outputs for Types and Enumeration values (see also #1882).
  • Issue #1878: Improvements towards a more responsive HTML design, thanks to Dan Scott.
  • Issue #1857: Updated site search function to use Google Custom Search v2 API.
  • Issue #1646: Updated various links to use https when referring to this site.
  • Issue #1722: Continuous Integration tests now check RDFa syntax.
  • Issue #1946: Linked experimental D3/RDFS and OWL representations from the developers page.
3.3
sdo-enceladus
2017-08-14

Version 3.3 (working name 'sdo-enceladus'). See planning pages, specifically #1569 for details.

This release introduces new types around Review, NewsArticle and Article that allow more fine-grained distinctions to be made. It adds a TouristAttraction type to the core, and a draft PublicToilet type as a draft proposal. It adds a HowTo vocabulary that generalizes Recipe-like structured instructions, and adds some useful properties to EmailMessage. It also adds a substantial vocabulary for describing Legislation to the new area.

Vocabulary

Core changes

New additions

Site Improvements

3.2
sdo-callisto
(2017-03-23)

Version 3.2 (working name 'sdo-callisto'). See planning pages, specifically #1292 for details.

This release introduces new core vocabulary including mechanisms for describing fact-check reviews, courses, and menus. It also introduces a number of newly-proposed terms to encourage discussion, implementation feedback and other improvements.

Vocabulary

Core changes

New additions

Archived into Attic section

  • The proposed variablesMeasured property has been removed. A non-plural variableMeasured property replaced it.
  • broadcastSignalModulation was retired 2016-08-17 from new area.
  • The Courses proposal originally had additional terms - courseCredits, courseCreditsUnit, grantsCredential, previewUrl - which should be archived here.

Site improvements

Quick fixes and Examples

3.1
sdo-makemake
(2016-08-09)

Version 3.1 (working name 'sdo-makemake'). See planning pages, specifically #1212 for details.

This release is primarily concerned with hotel/accommodation vocabulary, improvements around dataset, and bug fixes.

Vocabulary

Site improvements

Quick fixes and Examples

The following Early Access fixes were published between 3.0 and 3.1 releases:

  • Issue #1159: Fixed problems with W3C validator, caching, and misclassification of manufacturer property which in in core rather than health-lifesci extension.
  • Issue #1165: Improved wording for term pages that are not in core, to avoid publishers worrying that they need to change their markup.
  • Issue #1136: Fixed term labels to always be alphanumeric (no 'bib:' prefixes etc.)
  • Issue #1168: Fixed unit tests to run against extension schema data as well as core.
  • Issue #1169: Fixes for property/type associations in health-lifesci and new drafts, identified by improved unit tests.
  • Issue #1174: Fix for missing definition for 'ingredients'.
3.0
sdo-deimos
(2016-05-04)

Version 3.0 (working name 'sdo-deimos'). See planning pages, specifically #911 for details.

Vocabulary

Core changes

auto.schema.org

bib.schema.org

health-lifesci.schema.org

  • Issue #492: Moved a large number of medical/health terms from core into a health-lifesci extension.

New terms

Site improvements

  • Issue #1059: Created hosted extensions for 'meta' vocabulary and for vocabulary pending wider review. Moved Class, Property, domainIncludes, rangeIncludes, inverseOf, supersededBy into meta (2023 update: these structures are no longer in use).
  • Issue #256: Implementation of HTTP HEAD for all pages.
  • Issue #1095: ETag and Last-Modified headers only for successful page requests.
  • Issue #1098: Added categorization of terms listed on extension home page.
  • Issue #990: JSON-LD context file should enumerate all terms. This will make it easier to combine the use of schema.org with other vocabularies and extensions.
  • Issue #1075: Added markdown format processing of comment fields. This makes the schema editing process easier, especially for cross-referencing related terms.
  • Issue #178: Integrated rdflib python library. This improves our ability to parse RDFa and JSON-LD schema definitions, and makes unit tests easier to run.
  • Issue #1109: We now display when a type is superseded.

Quick fixes and Examples

2.2
sdo-phobos
(2015-11-05) Version 2.2 (working name 'sdo-phobos'). This release combines a range of small additions across several areas of schema.org with an ongoing concern for cleanup and integration of existing vocabulary. Notable additions include ExhibitionEvent, Barcode, DataFeed, containsPlace, GeoCircle, geoRadius, geoMidpoint, providerMobility and actionPlatform. A number of changes improve our handling of Service description, including the deprecation of the ProfessionalService construct. We have kept all the specific types that were previously considered ProfessionalService but discourage the use of the type 'ProfessionalService' since it is easily confused with 'Service'.

Vocabulary

Site improvements

Quick fixes and Examples

2.1
sdo-ganymede
(2015-08-06) Version 2.1 (working name 'sdo-ganymede') includes many small fixes, some new vocabulary, as well as the first release of the 'hosted extensions' mechanism, featuring bib(liographic) and auto(mobile) extensions for final review. A pre-release of this version of schema.org was available for review.

Vocabulary

Site improvements

Quick fixes and Examples

2.0
sdo-gozer
(2015-05-12) Version 2.0 consolidates and integrates schema.org's existing vocabulary. This version features many updated definitions, type/property associations and term names that improve consistency and usability. It also introduces a new extension system. Version 2.0 adds various new terms including mainEntityOfPage and major contributions from the Automotive Ontology community.

Vocabulary

Site improvements

  • Issue #429: Implementation of new extension system.
  • Issue #6: Improved 404 handler for missing pages, with support for old-style "/Person/Minister" extension URLs and Action-related "/query-input" pseudo-properties.
  • Issue #318: Added an experimental JSON(-LD) view of the hierarchy. This combines D3 with RDF schema. Thanks to Gregg Kellogg and Sandro Hawke for collaboration.
  • Various behind-the-scenes improvement to the site software.

Quick fixes and Examples

1.93
sdo-stantz
(2015-02-04) Lots of bugfixes and small improvements, plus new terms to describe visual artworks and invoices.

Vocabulary

Site improvements

Quick fixes and Examples

1.92
sdo-venkman
(2014-12-11) ItemList and BreadcrumbList changes; Sports-related improvements; Added a Music vocabulary; Video games. Also weight/height on Person; Control and RSVP actions; Role names; Dated monetary values.

Vocabulary

Site improvements

Quick fixes and Examples

See also issue list for this release.

1.91
(2014-09-12) Offer/price documentation fixes, cleanup and community contributions.
  • Updated text of the price property to include practical usage guidance, alongside links to information from GS1 to the gtin-related Offer properties.
  • Updated all our examples to follow that guidance; primarily by using priceCurrency and the content= attribute.
  • Noted our thanks to the OpenDomain project for our domain name.
  • Updated the text of the 'image' property to match its expected types. Thanks, Dan Scott.
  • Changed spelling of 'supercededBy' to the more conventional supersededBy. Thanks, Sachini Aparna Herath.
  • Noted that 'logo' and 'photo' are sub-properties of 'image'. Thanks, Sachini Aparna Herath, again.
  • Fixed two syntax errors in examples (Store opening hours RDFa; Book, PublicationVolume Microdata). Thanks, Gregg Kellogg.
  • Added Tolkien-based examples for exampleOfWork/workExample. Thanks, Dan Scott, again.
  • Fixed a bug with our UTF-8 support. Thanks, Richard Wallis.
1.9
(2014-08-18) Bibliographic improvements (Periodical and more) alongside seller/broker/provider clarifications.

Several bibliographic improvements, thanks to the work of the W3C BibExtend Community Group. Improved handling of Periodicals, Articles and Multi-volume Works, introducing types and supporting properties for Periodical, PublicationVolume and PublicationIssue. Adds new Article properties: pageStart, pageEnd and pagination. CreativeWork gains a convenience inverse of isPartOf called hasPart, as well as a new pair of inverses, workExample and exampleOfWork that link specific and general perspectives on creative works. Many thanks to all the BibExtend group members, to Richard Wallis for chairing, and to Dan Scott for implementing.

Provider/Seller vocabulary: this update also clarifies how to use a set of related terms, integrating sections of schema.org that had developed separately. Full details are documented at W3C and in Github, alongside an overview document. The provider property describes a service provider, service operator, or service performer, while seller describe the entities which sell or offer a service on behalf of an actual service provider. We introduce a more general broker property (replacing the over-specific bookingAgent), as well as deprecating vendor and merchant in favour of seller. Regarding flights and parcel delivery, carrier is superseded by provider. Please also note that flightNumber should now be written in full (i.e. "UA110" rather than just "110"). See the supporting documents for details.

Finally, episodeNumber, seasonNumber and clipNumber (for TV/Radio) have been harmonized with the periodicals design (issueNumber and volumeNumber). In each case, both Integer and Text values are anticipated. A common superproperty, position can also be used. This reflects implementation experience and establishes a model that can be applied elsewhere, e.g. ongoing work on describing music.

This update also improves the display and navigation of supersededBy relations between schema.org properties (e.g. see seller).

The Terms of service document was also updated to note that Yandex is now a schema.org Sponsor and to adopt the patent terms used by W3C.

(announcement) 1.8
(2014-07-28) Added WebSite type; broadened isPartOf property. Added a new CreativeWork type, WebSite: "A WebSite is a set of related web pages and other items typically served from a single web domain and accessible via URLs." Also adopts the suggestion made by the BibExtend group and other collaborators, to broaden the isPartOf property, which now relates any CreativeWork to any other CreativeWork. This release also makes the Potential Actions documentation available in HTML. Several markup fixes from Stéphane Corlosquet, alongside improvements to the consistency of encoding / associatedMedia property definitions thanks to Dan Scott. (announcement) 1.7
(2014-07-08) Allows image with ImageObject; adds Event organizers, Map improvements. This release amends the image property, noting that ImageObject is a reasonable value. It also adds an organizer property to Event. Changes around Map: we add and prefer a 'hasMap' property which supersedes the older 'map' property, and we add a mapType property which comes with some enumerated values: ParkingMap, SeatingMap, TransitMap, VenueMap. A Map might be (but needn't be) also an ImageObject. (announcement) 1.6
(2014-06-16) Roles, various fixes, site navigation improvements. This release introduced the notion of a Role type to schema.org. See the blog post for details. The Role mechanism applies across all of schema.org, and allows simple statements to be elaborated or qualified, for example with temporal information. Other changes in this release include the addition of a license property, and some documentation of properties used internally by schema.org's documentation system (Property, Class, supersededBy, inverseOf). Fixed an embarrassing typo - "dead" - in the diet property - thanks, Dan Scott. Various other small changes - listed in the preview announcement. (announcement and candidate release) 1.5
(2014-05-27) Tweaks and fixes. Tweaks to definition of 'keywords' to indicate that comma-separated entries are expected. Several typo fixes from Stéphane Corlosquet. Adds a new icaoCode text-valued property for Airport. Updated description for flightNumber to note "not including the airline IATA code". Added missing Actions-related definitions (urlTemplate, valueName). (announcement) 1.4
(2014-05-16) Examples, examples, examples. Added two examples to accompany workPerformed. Added several local business, company contact and music event examples. Several glitch and typo fixes including MedicalEnumeration, thanks to Dan Scott. announcement blog post 1.3
(2014-05-01) Added workPerformed. Added workPerformed, a relationship between an Event and a CreativeWork that is performed at the event. 1.2
(2014-04-16) Potential Actions. Introduces vocabulary that enables websites to describe the actions they enable and how these actions can be invoked. (announcement and blog post) 1.1
(2014-05-04) Reservations, Q/A and more.

Added a Reservation schema. Question/Answer sites. Order changes. Added EmailMessage.

1.) This release of schema.org adds a finalized Reservations schema, which refines earlier proposals discussed in the Web Schemas community over the last year. See wiki for details.

The Reservations vocabulary includes: Reservation, ReservationPackage, ReservationStatusType, Ticket, Flight, EventReservation, FlightReservation, TrainReservation, BusReservation, TaxiReservation, LodgingReservation, RentalCarReservation, ProgramMembership, Seat, Vehicle, Airline, FoodEstablishmentReservation, TrainTrip, Car, BusTrip, Taxi.

2.) Q/A sites

A simple vocabulary for Question/Answer and FAQ sites. It adds types for Question, Answer, and QAPage.

3.) Adds a type EmailMessage, analogous to the existing WebPage type.

(candidate release drafted as '1.0g'; not formally announced but included in the change to github-based publishing) 1.0f
(2014-02-05) Not-for-profit Offer and other fixes. This version adapts the wording around the Offer type to suit non-profit scenarios, such as libraries. Thanks to Dan Scott and the BibExtend group for these proposals. This change broadens the definition of Offer and makes associated changes to ItemAvailability and OfferItemCondition, typically rewording "the item for sale" to simply say "the item". The itemOffered property is now defined more appropriately as "The item being offered." rather than "...sold.". The "seller" property is now defined as "The organization or person making the offer.", a compromise to support its use for more kinds of offer. (candidate release and announcement) 1.0e
(2013-12-04) Accessibility properties and Order type. This release includes a schema for describing Orders, as well as the Accessibility properties for CreativeWork (see discussion). The W3C WebSchemas wiki has the Order proposal and draft schema. For Accessibility, see the blog post for more background on the collaborations involved. See also wiki materials and the draft schema. (announcement) 1.0d
(2013-11-21) TV/Radio; Civic Services; ContactPoint Event and Organization improvements.

TV/Radio improvements in collaboration with BBC and EBU - see guest blog post by Yves Raimond. For example see TVEpisode.

For Background see the TV/Radio wiki entry.

Civic Services (which includes ContactPoint) was blogged when first discussed. See also wiki entry. Example type: GovernmentService.

Event improvements: wiki entry. Organization improvements: wiki entry. In particular, this update added department, and subOrganization properties.

(blog announcement). 1.0c
(2013-08-07) Actions (in the past). Introduced a (past-tense) Actions vocabulary (see wiki) This updated added an Action type, supporting properties, and a substantial set of subtypes. It was followed in 2014 by a mechanism for describing potential actions. (announcement) 1.0b
(2013-07-24) Added sameAs; broadened citation.

Adds sameAs property to Thing that makes it easier to indicate identifying URLs for entities being described (wiki). The citation property has been moved up to CreativeWork, from MedicalScholarlyArticle (wiki). Thanks to the BibExtend group for suggesting this small but useful improvement.

(announced) 1.0a
(2013-04-05) Adds LRMI, Datasets, Audience, Technical Publishing vocabulary and more.

For LRMI (Learning Resource Metadata Initiative), a collaboration co-led by Association of Educational Publishers (AEP) and Creative Commons: Added several properties, mainly to CreativeWork. Added AlignmentObject type, for aligning content to educational coding schemes. (see wiki).

Added Dataset type (collaboration building upon work at W3C and elsewhere). See also blog, wiki.

Added Audience and related types, useful for LRMI and other applications (wiki.

Added Technical Publishing vocabulary: TechArticle, APIReference, Code. See also early blog post and Wiki entries for TechArticleSchema, APIReferenceSchema and CodeSchema.

(announcement) 0.99
(2012-11-08) Added Good Relations e-commerce vocabulary. Added substantial e-commerce vocabulary based on Good Relations; re-engineered site to accept RDFa/RDFS schema definitions from community.(wiki) (announcement blog post and email from Martin Hepp) 0.98
(2012-10-18) Fix for requiresSubscription property. A minor bugfix release, which improved the documentation of requiresSubscription property. We now encourage its Boolean value to be represented as true/false rather than yes/no. 0.97
(2012-07-26) Added DateTime, Time datatypes. Added two datatypes in preparation for Good Relations integration. (announcement) 0.96
(2012-07-18) Added additionalType property. Added additionalType property (wiki). "An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. In RDFa syntax, it is better to use the native RDFa syntax - the 'typeof' attribute - for multiple types. Schema.org tools may have only weaker understanding of extra types, in particular those defined externally." (announcement) 0.95
(2012-06-26) Added Medical/Health vocabulary.

This release added substantial vocabulary in the medical/health domain (around 100 classes, 200 properties). The additions are mainly organized beneath the MedicalEntity type. An overview document is also provided. From the blog post:

"This collaborative project drew upon search expertise from the schema.org partners but also gained immeasurably through feedback from expert reviewers including the US NCBI; physicians at Harvard, Duke and other institutions, as well as from several health Web sites. Contributions from the W3C Healthcare and Lifesciences group and Web Schemas community also helped bridge the complex worlds of Web standards, search and medicine/healthcare."

(announcement) 0.91
(2012-04-21) Removed plural 's' suffix from repeatable properties; added Comment type, SoftwareApplication vocabulary.

Added new properties per Singularity proposal: 23 changes: actor, album, attendee, award, blogPost, colleague, contactPoint, employee, encoding, episode, event, founder, map, member, parent, performer, photo, review, season, sibling, significantLink, subEvent, track. Each of these originally had a plural 's' to indicate repeatability. After discussion in the W3C WebSchemas group, the consensus was that this was confusing and worthwhile changing.

This revision added a new type, 'Comment', whose super-type is CreativeWork (wiki)

Also adds SoftwareApplication and supporting vocabulary (wiki, original proposal), including MobileApplication, WebApplication subtypes.

Converged URL/Url spelling. After WebSchemas discussion, consensus was: For each of embedURL, contentURL, downloadURL, ensure there is an equivalent property named with mixed-case: 'embedUrl', 'contentUrl', 'downloadUrl'.