OpenRTB v2.6-202606

Programming Liveness

• Addition of realtime, and firstbroadcast attributes in OpenRTB Object: Content and AdCOM Object: Content
• Updated attribute description of content.livestream
• Associated Implementation Guidance

Substitution Macros

• Updated description of ${AUCTION_PRICE}
• New ${AUCTION_DISCOUNT_PCT} and ${AUCTION_DISCOUNT_CPM}
• Associated Implementation Guidance

OpenRTB v2.6-202505

OpenRTB Updates:

• Updated attribute description of content.id in Object: Content
• Addition of cids attribute in Object: Data
• Implementation Guidance on using Extended Content Identifiers
• Deprecate existing Extended Content Identifiers Community Extension
• Errata fix for genres attribute - moved type from int array to string to support letters in IDs.

OpenRTB v2.6-202501

OpenRTB Updates:

• Addition of gtax and genres attributes in Object: Content
• Section in Implementation Guidance on using new attributes.
• Updated AdCOM List: Category Taxonomies with enum for Content Taxonomy 3.1
• Removed description of deprecated attributes. Where applicable, version when deprecation took place and/or (again only where applicable) pointer to updated attribute that replaced deprecated attribute

Associated Taxonomy Updates:

• Updated version of Content Taxonomy 3.1 to add row for Thriller
• Sub-set of Content Taxonomy 3.1 with expected values for genres attribute

OpenRTB v2.6-202409

OpenRTB Updates:

• Updated id and buyeruid attribute descriptions in Object: User
• Updated ifa attribute description in Object: Device
• New attributes (inserter, matcher, mm) in Object: EID
• Updated source attribute description in in Object: EID
• New Implementation Guidance with multiple Bridging Scenarios
• Added Appendix C: Cookie Based ID Syncing

Associated AdCOM List: ID Match Methods

OpenRTB v2.6-202402

• Updated broken MRC Link
• Addition of poddedupe to Object: Video

OpenRTB v2.6-202309

• Updated attribute description of bidrequest.id
• New acat attribute in Object: Bid Request
• New Object: DurFloor that allows sellers to specify price floors for video and audio creatives, whose price varies based on time and associated attributes in Object: Audio, Object: Video and Object: Deal
• New attributes in Object: Deal (guaranteed, mincpmpersec, durfloors)
• Implementation guidance on the use of Bid Floors

OpenRTB v2.6-202303

OpenRTB 2.6-202303 Features Include

• Object: Refresh - The minimum exposure time, in seconds per view, that the (uninterrupted) ad creative will be rendered before refreshing to the next creative.
• Object: RefSettings - Information on how often and what triggers an ad slot being refreshed.
• ${AUCTION_IMP_TS} in Substitution Macros to signal the timestamp when an impression was fulfilled (e.g. when the ad is displayed) for use by platforms that cannot fire a notification as soon as an impression takes place.
• New plcmt attribute in Object: Video to support updated values for digital video definitions
• Deprecation of placement attribute
• Added implementation guide
  • .gif examples with definitions
  • Example code for publisher to signal both legacy definitions and updated definitions

OpenRTB v2.6-202211

November features include:

• Process details for versioning, contributing, and monthly release cadence
• A new object for DOOH and implementation guide
• Inclusion of the GPP string and applicable section in regs object
• Move inventorypartnerdomain out of ext and into site and app objects

OpenRTB v2.6-202210

This is the first baseline release for this repo. It represents the same version of the OpenRTB 2.6 spec that was published in April 2022, with no new changes yet proposed or included.