As for my session, it will be "Transitioning to Java 17 from 11 or 8 for Admins":
Update: Since I posted this last night, I've heard some people assert "this is not new behavior: Java's always popped up and offered to remove old versions". Those folks are misunderstanding something: that was true of past JRE installers (like in Java 8 and earlier, which don't exist for Java 11), but it was never the case for Oracle JDK installers (even for Java 8). THAT's what's new about the JDK 11 and 17 installers, and it's DOCUMENTED in the release notes, as I discuss below. But it may surprise those who never saw a JDK installer do that, thus this post. (The rest of this post remains unchanged.)
I'm referring here to new behavior in the JDK installers from the Jan 2023 update, which I blogged about recently. This topic will apply also to subsequent JVM updates as they come out in the future. (Fortunately for some, this issue does NOT affect those running Java 8 or below, or Java 19 or above, as I will explain.)
While the technotes for the new updates (which I point to in my post above) do make mention of the issue I'm describing, I don't feel they do it in as obvious a manner as they might (it's not clear how it affects CURRENTLY installed earlier updates of JDK 11 or 17)., and I've already helped some people dealing with the ramifications of the change. And of course it's all the MORE important to make sure this is made known to those who might NOT read the release notes.
I've also found that the JDK installer doesn't ALWAYS warn that there are running processes using the older JDK version that it's about to remove. And to be clear, it won't warn about applications that are NOT running but which are configured to try to use the older JDK version that would be removed.
Read on for:
TLDR: The new updates are 1.8.0_361 (aka 8u361), 11.0.18, 17.0.6, and 19.0.2 respectively). For more on each of them, including what changed and the security fixes they each contain (including their CVE scores regarding urgency of concerns), see the Oracle resources I list below. Oracle calls them "critical patch updates" (yep, CPU), but they are in fact scheduled quarterly updates, so that "critical" nomenclature may be a bit overstated. And as is generally the case with these Java updates, most of them have the same changes and fixes as each other, though not always.
Update: After posting this, I learned of some rather surprising implications of a new feature of the new JDK installer. For more, see another post I created.
For some folks, that's all they need to hear. For others, read on for topics like:
TLDR: The new updates are 1.8.0_351, (aka 8u351), 11.0.17, 17.0.5, and 19.0.1 respectively). And as is generally the case with these Java updates, most of them have the same changes and fixes as each other (though not always).
Update: After posting this, I learned of some rather surprising implications of a new feature of the new JDK installer. For more, see a new section on this below.
Oracle calls them "critical patch updates" (yep, CPU), but they are in fact scheduled quarterly updates, so take that "critical" nomenclature for what it is. For more on each of them, including what changed and the several security fixes they each contain (including their CVE scores regarding urgency of concerns), see the Oracle resources I list below. And if you may be skipping to this from a JVM update from before Apr 2021, I share also a bit more info as well as for users of Adobe ColdFusion (including where to find the updated Java versions from Adobe, what JVM versions Adobe CF supports, and more).
For some folks, that's all they need to hear. For others, read on for topics like:
TLDR: The new updates are 1.8.0_341, (aka 8u341), 11.0.16, 17.0.4, and 18.0.1 respectively). And as is generally the case with these Java updates, most of them have the same changes and fixes as each other (though not always).
Oracle calls them "critical patch updates" (yep, CPU), but they are scheduled quarterly updates, so take that "critical" nomenclature for what it is. For more on each of them, including what changed and the several security fixes they each contain (including their CVE scores regarding urgency of concerns), see the Oracle resources I list below. I also a bit more if you may be skipping to this from a JVM update from before Apr 2021, as well as info for Adobe ColdFusion users on where to find the updated Java versions, what JVM versions Adobe CF supports, and more.
For some folks, that's all they need to hear. For others, read on for topics like:
This is NOT something that CF developers NEED to know, and it WILL NOT affect anyone's CFML code.
I just thought I'd share news of it as I happened to learn of it today (though Java 10 came out nearly 5 years ago). More than anything, I thought it worth mentioning for the sake of either CF folks or Java folks who may come to work with CFML, to help each group understand how that Java var keyword is so very different from the one used in ColdFusion, for better or worse.
The new updates are 1.8.0_331, (aka 8u331), 11.0.15, 17.0.3, and 18.0.1 respectively). And as is generally the case with these Java updates, most of them have the same changes and fixes.
For more on them, including changes as well as the security and bug fixes they each contain, see the Oracle resources I list below, as well as some additional info I offer for if you may be skipping to this from a JVM update from before Apr 2021. I also offer info for Adobe ColdFusion users on where to find the updated Java versions, what JVM versions Adobe CF supports, and more.
The new updates are 1.8.0_321, (aka 8u321), 11.0.14, and 17.0.2, respectively).
For more on them, including information on the security fixes and bug fixes they each contain, see the Oracle resources I list below, as well as some additional info I offer for if you may be skipping to this from a JVM update from before Apr 2021, as well as info for Adobe ColdFusion users on where to find the updated Java versions, what JVM versions Adobe CF supports, and more.
The new updates are 1.8.0_311, (aka 8u311), 11.0.13, and 17.0.1, respectively).
For more on them, including information on the security fixes and bug fixes they each contain, see the Oracle resources I list below, as well as some additional info I offer for if you may be skipping to this from a JVM update from before Apr 2021, as well as info for Adobe ColdFusion users on where to find the updated Java versions, what JVM versions Adobe CF supports, and more.
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