Question regarding Java21 Support for Shibboleth IdP

[Scott Cantor]

> On Jul 22, 2026, at 4:40 PM, Mark Boyce via users <users at shibboleth.net> wrote:
> 
> Hi All,
>  We’re looking at upgrading to OpenJDK 21. Is this supported? Looking athttps://shibboleth.atlassian.net/wiki/spaces/DEV/pages/1161266638/Product%2BPlatforms?utm_source=chatgpt.com it’s unclear whether
> “The following execution environments are supported by this product platform:
> • Java 17
> • Java 21.”  Is referring to the Metadata Aggregator or includes Shibboleth IdP v5.

The execution environments are supported based on product platform, and the only active platform under any of our software right now is the Java 17 one. Thus, everything we support (leaving the current SP out of it) is supported running under Java 17 and 21.

Not sure about 25, in point of fact. Likely yes but will ask Ian about it.

-- Scott