- From: <sysbot+notifier@w3.org>
- Date: Mon, 03 Mar 2025 22:04:56 +0000
- To: public-transition-announce@w3.org
CR Snapshot Update Request for Portable Network Graphics (PNG) Specification (Third Edition) - png-3 from https://github.com/w3c/transitions/issues/697 # Document URLs - https://w3c.github.io/png/ # Link to group's decision to request transition - https://github.com/w3c/png/issues/503 # Link to previous Candidate Recommendation transition or update request - https://github.com/w3c/transitions/issues/566 # Substantive changes - One substantive change (renamed two metadata chunks as unsafe to copy) now adopted by all implementers - [Editorial changes since CR Draft of 21 Jan 2025](https://w3c.github.io/png/#changes-20250121/) # Any changes in requirements? None # Wide Review of substantive changes - https://github.com/w3c/png/issues/228 - [Explainer](https://github.com/w3c/png/blob/main/Third_Edition_Explainer.md) used for TAG review - Some original PNG specification authors contributing, including becoming IE - [libpng](https://github.com/pnggroup/libpng) has shipped support for Third Edition chunks; increased collaboration with PNG WG - pnggroup officially adopted [pngcheck](https://github.com/pnggroup/pngcheck) - working with [ISO TC 42](https://www.iso.org/committee/48420.html)/WG 23, [Class C liaison](https://www.w3.org/liaisons/#I) in progress - Referenced by forthcoming ISO 21496-1 which wants to see it as W3C Recommendation asap - Liaison with SMPTE resulted in several SMPTE specifications, normatively referenced by PNG, becoming freely available at our request - [libspng](https://libspng.org/) is waiting for 3rd Edition to become a W3C Recommendation before adding support # Issues status - [PNG 3rd Edition issues](https://github.com/w3c/png/issues?q=is%3Aissue%20state%3Aopen%20milestone%3A%223rd%20edition%22) # Formal Objections None # Any changes in implementation information? **Very** widely implemented - [Implementation Report](https://w3c.github.io/png/Implementation_Report_3e/) # Deadline for further comments 60 days # Any changes in patent disclosures? None See [Requirements for updating a Candidate Recommendation Snapshot](https://www.w3.org/Guide/transitions?profile=CR&cr=snapshot) for further information. -- This email was generated automatically using https://github.com/w3c/transition-issues-bot
Received on Monday, 3 March 2025 22:05:01 UTC