News and History of the MNG Developers from 1998

Herein lie news items and historical stuff regarding MNG. Feel free to poke around, but note that some of the links, particularly the older ones, may be broken. Keep in mind that this is history here...

• latest - see here

• 31 December 1998 - Draft 55 of the MNG specification is released (new JNG promotion cases).

• 22 December 1998 - Draft 54 of the MNG specification, now known as version 0.9, is released (new SAVE nominal layer number).

• 11 November 1998 - Draft 53 of the MNG specification is released (framing-mode fixes, typos). Frozen?

• 9 November 1998 - Draft 52 of the MNG specification is released (new MHDR layer-count field and expanded profile bits; JNG "20-bit" data ordered with 8-bit before 12-bit).

• 16 October 1998 - Draft 51 of the MNG specification is released (new MHDR frame-count, play-time, and simplicity-profile fields; URI info). This one looks more likely to be accepted by everyone as frozen, with the possible exception of a deterministic recipe for calculating the frame count.

• 1 October 1998 - Draft 50 of the MNG specification is released (new delta-JNG IJNG chunk). Glenn considers this draft feature-frozen.

• 19 September 1998 - Draft 49 of the MNG specification is released (LOOP data fields reordered, SEEK disallowed inside loops, tERm replaced with TERM).

• 11 September 1998 - Draft 48 of the MNG specification is released (progressive and 12-bit JNGs allowed; 12-bit JDATs may be accompanied by corresponding 8-bit JDATs, separated by new JSEP chunk; clear display before each frame for framing_mode 1). This is getting very close to a feature-freeze.

• 3 September 1998 - Draft 47 of the MNG specification is released (new global PLTE, SAVE/SEEK revisions, completed section on minimum decoder requirements).

• 23 August 1998 - The MNG Home Site is born! Thanks once again to the generosity of the fine folks at Walnut Creek CD-ROM, the budding MNG pages now have a home of their own at the same hierarchical level as the PNG pages, namely, http://www.cdrom.com/pub/mng/ . Woo woo!

• 17 August 1998 - Draft 46 of the MNG specification is released (PNJ renamed to JNG, PAST simplified again, BACK tileable, 16-bit alpha allowed with JNG).

• 3 August 1998 - Draft 45 of the MNG specification is released (more complete PNJ description, PAST tiling, BACK background image).

• 31 July 1998 - Draft 44 of the MNG specification is released. (typo fixes, clarifications, PPLT instead of IPLT, initial JPEG ["PNJ"] support).

• 30 June 1998 - Draft 43 of the MNG specification is released (typo fixes, another optional index entry for SAVE, new reference to W3C SMIL Recommendation).

Here are the other MNG-related pages at this site:

• Historical MNG news:
  • 2006 · 2005 · 2004 · 2003 · 2002 · 2001 · 2000 · 1999 · 1998 · 1997 · 1996
• MNG Documentation
  • MNG Specification
    • MNG-LC subset (low complexity)
    • MNG-VLC subset (very low complexity)
    • JNG subset (JPEG Network Graphics)
  • PNG Documentation
• MNG-supporting Applications
• MNG home page
• PNG home page

Copyright © 1996-2009 Greg Roelofs.