It makes sense that you would put all the 1.5.0 jars in the same release, but this does not work out for launchers with mod updaters like Prism Launcher (which I use). Prism downloads only the jar marked as "Primary", which for the 1.5.0 release is the 1.19.4 jar.

So when I try to download NPE for 1.20.2 or 1.20.4, it downloads the 1.5.0 release as it's marked to be compatible with those versions. But it downloads the 1.19.4 jar, and the game does not launch. There is currently no way in Prism to choose which jar to download. I can only select the release, it downloads the Primary jar by default.

Another alternative is to just manually download the right jar and drop it in the mods folder, but that defeats the purpose of using launchers like Prism with integrated mod management.