TLDR: The new updates are 1.8.0_441 (aka 8u441), 11.0.26, 17.0.14, 21.0.6, and 23.0.2, respectively. Crazy that there are now 5 current Java releases, I realize. More below, including more on each of them including what changed as well as bug fixes and the security fixes each version contains (including their CVE scores regarding urgency of concerns), 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, 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.

Whether this your first time updating Java or your fiftieth, there are some things that you may or may not know.

Topics:

• Finding more info on these most recent Java updates
• Key changes discussed in the release notes
• Finding more on security matters addressed in these Java updates
• Obtaining the JVM update, from Oracle or from Adobe
• Other topics you may be interested to know, and where I discuss them
• Wrapping up, getting more help

Finding more info on these most recent Java updates

As for what changed in the updates, see the release notes for each of 1.8.0_441, 11.0.26, 17.0.14, 21.0.6, and 23.0.2. Again, the Java 22 last updated previously in July 2024 is now no longer updated by Oracle.

These Oracle release notes have sections on each of "New Features", "Known Issues", "Issues Fixed", "Other notes", and "Bug Fixes"--each as may apply to that specific update, which is why I am not listing all these changes here. See the release note for the update you are considering applying. That said, some changes may indeed be (and typically are) found in all four versions.

Among the various changes, here are some key ones.

Key changes discussed in the release notes

Before discussing obtaining and applying the update, I often will first share some of the key changes identified in the release notes. That said, in this update there are none I feel so compelled to note, at least with respect to Java 8, 17, 21, or 23. That said, as for Java 11, I spotted this.

Brought to Java 11: new security debug args

In my post about the Oct 2024 JVM updates and its section on such key changes, I had noted how there was a change made (at least to Java 17 and 21) introducing new arguments available to control the output created using Java security debugging, including showing timestamps and more. Good news for those on Java 11 is that I see from the release notes that the feature has been added to that release as well: "Thread and Timestamp Options for java.security.debug System Property". (FWIW, it's still NOT been made available for Java 8, as indicated in "backports" section of the the bug report about the matter, and it's not clear if that will be done.)

Let's get back now to general info about getting the updates...

Finding more on security matters addressed in these Java updates

As for security fixes included in this update, that's covered elsewhere. You will (soon, if not now) be able to see the single document listing Java security fixes in these most recent updates and the Text Form of Risk Matrix for Oracle Java SE, for this most recent update.

Curiously, as I post this, the second of the links above isn't yet updated, and the second doesn't work. The URLs always follow the same pattern from release to release, which is why I am offering them. I suspect this is just some delay in Oracle getting that large "risk matrix" (covering all products) finalized today. By the time you read this, both pages may have been updated. I'm opting to proceed with this post since all the other links and info are working/accurate. When it's available, read on below for more, and I'll comment out this paragraph.

Pay close attention to "notes" offered there for each vulnerability, as that may temper the severity. (Note as well that while both these documents cover ALL Oracle products, I have offered in the first paragraph above links to the Java-specific sections of the pages. Focus on references to "Java SE" rather than any specific to GraalVM, which is not the focus of the discussion in this post.)

Watch also that many times the listed issues indicate that a vulnerability may be "difficult to exploit" and that many "[do] not apply to Java deployments, typically in servers, that load and run only trusted code (e.g., code installed by an administrator)", which may reduce the concern for you about them depending on your perspective.

That said, these documents could also change between now and when you see this post, so it's your responsibility to assess that information carefully. And regardless of whether such vulnerabilities may seem to apply to you, generally folks should seek to keep their JVM updated, or at least avoid falling too far behind.

Obtaining the JVM update, from Oracle

As for obtaining downloads of Java updates, you can find all the current versions on this one page. Note that there are tabs for the installers for each supported OS (Linux, macOS, and Windows).

That said, note that while the TOP of the page offers the LATEST Java versions (Java 21 and above), you will find the prior versions are instead offered LATER down the page (which is easy to miss). Here are direct links to get to them: Java 17, Java 11 and 8.

And while you DO need to sign in there to obtain the Java 17, 11 and 8 download files, an account is free. (The updates for Java 21 and above do NOT require a login on the Oracle site.) All this has to do with licensing of Java--but users of Adobe ColdFusion (my primary audience) should note that Adobe licenses Oracle Java for our use of it with CF. More in another blog post that I discuss below.

Obtaining the JVM update, from Adobe

And since the focus of my blog and work is indeed mostly focused on those using Adobe ColdFusion (coldfusion.com), I will clarify for them that Adobe also offers the Java downloads as well, so that CF users need not log into the Oracle site as discussed above. Sometimes Adobe gets these downloads posted as soon as Oracle releases them, but often it may take some days.

See the CF Downloads page, and its last section offering Java installers, which includes the installers or zip/archive options, for each of Windows, Linux, and MacOS.

That said, as of my posting this today, the Adobe downloads page for CF-related installers does not yet have the downloads for this latest update.

And while some assert that CF folks "must use those from the CF downloads page", every time I've done a binary compare of the files, they have been identical (at least for the identical build number, which may change slightly over time on the Oracle site though not the Adobe site). As this installer includes the Java license, I can't see how anyone could assert that it matters WHERE you get an identical installer.

Other topics you may be interested to know, and where I discuss them

Some readers may find the above so far to have been "a lot to consider" already, but there is indeed far more that you could and should consider before applying a Java update. And for a few years, I would cover such additional topics within this sort of blog post, each time I announced the new JVM update. But I've decided recently to split that off into its own blog entry, and I will point to that instead in each of these such JVM update announcement posts, in order to keep this relatively "brief".

In that other post, I address such issues as :

• Obtaining and learning still more about available JVM updates
• What about other JVM distributions besides Oracle?
• News for my CF audience (which CF versions support what JVM versions, how to apply the update, why you should NOT for now use Java 21 and up with CF, etc.)
• Should you apply the update? how soon?

Then I cover a few things that you should be aware of if skipping over previous JVM updates:

• Beware a change in the July 2023 JVM update, regarding Zip64ExtraFieldValidation
• Beware a change in the January 2023 JVM update, regarding a change in how the JDK installer works
• Beware a change in the October 2022 JVM update, regarding Java no longer trusting jars signed with SHA-1
• Beware a change in the April 2021 JVM update, regarding calls out to anything running TLS 1.1 or earlier

Again, that other post of mine with more info is here: Several things to consider when applying JVM updates.

Wrapping up, getting more help

I hope all that may be helpful for you.

Finally, feel free to ask questions or raise comments below, or for direct help note that I offer remote screenshare consulting help, where I am usually able to quickly fix problems (that might take many folks hours to resolve--if they don't deal with these issues daily like I do in helping people).

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