Announcing Java updates of Apr 15, 2025 for 8, 11, 17, 21, and 24: thoughts and resources
TLDR: The new updates are 1.8.0_451 (aka 8u451), 11.0.27, 17.0.15, 21.0.7, and 24.0.1, respectively. Crazy that there are now 5 current Java releases, I do realize. More below, including links to more on each of them including what changed, bug fixes, and the security fixes each version contains, which are offered in Oracle resources I list below.
Oracle calls these updates "critical patch updates" (yep, "CPU"), but they are in fact scheduled quarterly updates (Jan, Apr, Jul, Oct, with specific dates listed here), so that the "critical" aspect of this nomenclature may sometimes be a bit overstated. As is generally the case with these Java updates, most of them have the same changes and fixes across the four JVM versions, though not always.
For some folks, that's all they need to hear. For others, read on.
But let's please not make this a place where folks ask about that CF update: it's off-topic for here. I even opted not to mention this in the post above for that reason, but I wanted to offer this comment to inform those who may be wondering.