Re: Tomcat 10.1.13 - z17 Compatibility for z/OS 3.2

Matthew,

On 12/2/25 11:24 AM, MATHEW THOMAS via users wrote:
> We are currently running Tomcat 10.1.13 on z/OS 3.1.
> 
> We plan to migrate to the z17 hardware on z/OS 3.2 and would like to 
> know if there are any required actions to take for this product, such as 
> upgrading or applying any fixes to tolerate the z17s on z/OS 3.2.
> 
> Your assistance is greatly appreciated.

I have no z/OS experience, but my sense is "is the JVM works, Tomcat 
will work." If you have the option to do so, I would upgrade the JVM to 
whatever is most natural in that environment as you upgrade your other 
components. (I'm excited to see that you are running Tomcat 10.1 and not 
something like Tomcat 6... this suggests that you have otherwise been 
keeping up with the times, so your JVM is probably 11, 17, or 21, or 
even 25. Java 25 is the latest LTS version and the one I would recommend.

There is very little z/OS experience here on the Tomcat mailing list, 
but there is one particular community member who I know has extensive 
experience and maybe he can share his wisdom with you. You may just have 
to be patient for a reply, though :)

-chris