As usual, there are a number of things you should consider before (or after) doing the update, with some discussed in Adobe's resources on the update (there are more than one), and some info that I share below based on my experience helping people apply this and past updates.

In this post, I share the details about the update (from Adobe and from others). I can report I have installed the update for each release on multiple machines and operating systems without any major incidents. As for challenges (common to recent releases) and lessons learned (about this update), read on.

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TLDR: The new updates are 1.8.0_461 (aka 8u461), 11.0.28, 17.0.16, 21.0.8, and 24.0.2, respectively. More on the updates below, including links to more info on each of them including what changed, bug fixes, and the security fixes each version contains. (I also offer a quick assessment of the updates with respect to my primary audience, users of CFML engines.)

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As usual, there are a number of things you should consider before (or after) doing the update, with some discussed in Adobe's resources on the update (more than one), and some that I share below based on my experience helping people apply this and past updates. Finally, the update corrects some issues introduced in the previous updates, released in May.

In this post, I share the details about the update (from Adobe and from others). I can report I have installed the update for each release on multiple machines and operating systems without any major incidents. As for challenges (common to recent releases) and lessons learned (about this update), read on.

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I want to announce in particular here that I'll be offering the first talk of the week: "Debugging and Error Handling in ColdFusion". Read on for more.

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The update also incorporates potentially breaking changes (with Adobe trading compatibility for security), while it also includes configurable options to undo those changes (if you prefer to trade away security for compatibility). Finally, the update corrects some issues introduced in the previous updates, released in April.

In this post, I share the details about the update (from Adobe and from others). I can report I have installed both updates on multiple machines and operating systems without incident. As for challenges or lessons learned, I may do a follow-up post as I/we all learn more.

For more details, read on.

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I'll be presenting a talk on this topic, online today, at noon US Eastern, on the CFMeetup Youtube livestream (which will be recorded). Folks who are members of the Online ColdFusion Meetup will have already gotten email notification about this, including the meeting URL, but for those who are not members here are the details:

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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.

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This should not be confused of course with the "Hidden Gems in CF2025" talk which I also just announced that I'd be presenting at the upcoming CF Summit East (next week in DC) and CFCamp (in Munich in late May). It'll be a busy few weeks! :-)

As with them, it's always a thrill to attend this annual event. Following is the topic description and more.

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It's always a thrill returning to these annual events. Following is the topic description and more.

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Now that CF2025 has come out, supporting Java 21--and as ColdFusion and Java versions continue to evolve--you may wonder which version(s) of Java you can use with your current (or a given) version of ColdFusion.

You can't just use "any" jvm version with CF: it depends on first on what version of CF you are using, and then may even depend on what CF update has been applied to that CF version. (You also can't use Java from any vendor: Adobe supports only use of Oracle Java, and they license it for our use, as I discuss later.) And to be clear, currently ONLY CF2025 supports Java 21. (And though Java 25 came out in Sep 2025 as the latest LTS or "long-term support" Java releases, note that NO CF version currently supports that--as of an updated check in May 2026.)

So in this post, I offer a table that clarifies things, listing the various recent CF versions (even those no longer supported) and what (LTS) Java versions they supported, including if some CF update of a version changes the Java version supported.

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