2018.11.04 20:20 "[Tiff] Libtiff will be released soon", by Bob Friesenhahn

2018.11.09 22:11 "Re: [Tiff] Libtiff will be released soon", by Bob Friesenhahn

We could potentially do the same. Assuming the tags are allocated in a linear order, if we jumped all the way to e.g. 50000 we would avoid clashes with Adobe tag registration for some time to come. Or if Adobe could grant us a chunk of e.g. 1000 tags, we could manage their usage and standardisation ourselves.

Given the danger of interoperability problems with nonstandard tags, it should I think be a prerequisite to have this sorted out before making a new release. If people start to use e.g. zstd and then we have to change the tag numbers, that would be quite unfortunate.

This seems like a good plan.

Both WebP and Zstd are useful enough that they may become popular in TIFF and it is wise to avoid conflicts.

Bob
--
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/