There were also other problems with the GIF format that made a replacement desirable, notably its limit of 256 colors at a time when computers with far more advanced displays were becoming common. A January 1995 precursory discussion thread, on the usenet newsgroup "comp.graphics" with the subject Thoughts on a GIF-replacement file format, had many propositions which would later be part of the PNG file format.
With this all major browsers now support APNG. 1 October 1996: Version 1.0 of the PNG specification was released, and later appeared as RFC 2083.
It became a W3C Recommendation on 1 October 1996. 31 December 1998: Version 1.1, with some small changes and the addition of three new chunks, was released. 11 August 1999: Version 1.2, adding one extra chunk, was released. 10 November 2003: PNG became an International Standard (ISO/IEC 15948:2003).
It became a W3C Recommendation on 1 October 1996. 31 December 1998: Version 1.1, with some small changes and the addition of three new chunks, was released. 11 August 1999: Version 1.2, adding one extra chunk, was released. 10 November 2003: PNG became an International Standard (ISO/IEC 15948:2003).
It became a W3C Recommendation on 1 October 1996. 31 December 1998: Version 1.1, with some small changes and the addition of three new chunks, was released. 11 August 1999: Version 1.2, adding one extra chunk, was released. 10 November 2003: PNG became an International Standard (ISO/IEC 15948:2003).
In 2001, the developers of PNG published the Multiple-image Network Graphics (MNG) format, with support for animation.
It became a W3C Recommendation on 1 October 1996. 31 December 1998: Version 1.1, with some small changes and the addition of three new chunks, was released. 11 August 1999: Version 1.2, adding one extra chunk, was released. 10 November 2003: PNG became an International Standard (ISO/IEC 15948:2003).
This compression technique, also used in GIF, was covered by patents until 2003.
This version of PNG differs only slightly from version 1.2 and adds no new chunks. 3 March 2004: ISO/IEC 15948:2004. == PNG Working Group == The original PNG specification was authored by an ad hoc group of computer graphics experts and enthusiasts.
In 2006, Microsoft Windows support for PNG icons was introduced in Windows Vista.
Microsoft Edge now support APNG with the new Chromium based engine. The PNG Group decided in April 2007 not to embrace APNG.
In 2008, certain Mozilla developers published the Animated Portable Network Graphics (APNG) format with similar goals.
In 2017 Chromium based browsers adopted APNG support.
In January 2020 Microsoft Edge became Chromium based, thus inheriting support for APNG.
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