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ITU-T H.266.1 (V3) (01/2026)

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Conformance specification for ITU-T H.266 versatile video coding
Recommendation ITU-T H.266.1 "Conformance specification for ITU-T H.266 versatile video coding" specifies tests for (non-exhaustive) testing to verify whether bitstreams and decoders meet the normative requirements specified in Rec. ITUT H.266 | ISO/IEC 23090-3 Versatile video coding (VVC). The bitstreams provided with this document correspond to the 01/2026 (V3) edition of Rec. ITU-T H.266. Relative to the previous (second) edition, this version adds bitstreams for the Multilayer Main 10 profile.
This Recommendation was developed collaboratively with ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information, and corresponds with ISO/IEC 23090-15 as technically aligned twin text.
The conformance bitstreams needed for this Recommendation are available at: .
Citation: https://handle.itu.int/11.1002/1000/16663
Series title: H series: Audiovisual and multimedia systems
  H.200-H.499: Infrastructure of audiovisual services
  H.260-H.279: Coding of moving video
Approval date: 2026-01-13
Identical standard:ISO/IEC 23090-15 (Twinned)
Provisional name:H.VVC.1
Approval process:AAP
Status: In force
Maintenance responsibility: ITU-T Study Group 21
Further details: Patent statement(s)
Development history
[19 related work items in progress]
Associated test signals