Java versions and performance difference


I am curious about the difference between the Java versions and why such old versions are separately supplied.

I am trying to get some extra performance out of a java game I play (starsector) and thought using jre15 would be better. Game performance is awful much of the time, I’ve read it is due in part to using such old opengl tech.

Using archlinux-java set java-15-openjdk I set my default jre to 15 instead of the default of 8.

Will this cause any actual problems anywhere, should I leave it on 8? I can’t think of any other java programs I actually use…


Unless you have programs installed that specifically target Java 8, you should be fine.

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