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PNG has been updated for the first time in 22 years — new spec supports HDR and animation
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this post was submitted on 03 Jul 2025
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Yeah, this was my first thought. How many slightly older, no-longer-being-updated pieces of software will fail to open the new version? Hopefully it’s built in a way that it just falls back to legacy and ignores the extra information so you can at least load the file.
This is all the article mentions. I hope you’re right about the backwards compatibility.
I remember the Wild West Web days when it was a toss up seeing if animated Gifs, transparencies in images, or the specific hexadecimal for your personal shade of purple you created would render properly between browsers.
Lies! That gif is sped up 2000%!
LOL, I heard that gif. Timed it in my mind, on the money OP.
Ooh, that was the coaster company, I remember them.
I mean, that's already how animated .gifs work. If somehow you manage to load one into a viewer that doesn't support the animation functionality it will at least dutifully display the first frame.
How the hell you would manage to do that in this day and age escapes me, but there were a fair few years in the early '90s where you might run into that sort of thing.
One example is piefed unfortunately. Animated gifs as avatar or banner don't animate currently as far as I can tell.
Those are displayed in browser, right? The only reason that would be happening is if Piefeed is recompressing images and their code is not smart enough to identify an animated .gif and act accordingly.
Yeah in browser. I should probably open an issue ticket if nobody else noticed yet.
Relevant issue: https://codeberg.org/rimu/pyfedi/issues/665
tl;dr - it's an issue with the pillow image library in python. It's on our radar though. I got posts working, but you have to click through, the thumbnail still isn't animated.