I remember looking into this... the issue was, iirc, something about Lucene8 not being able to read Lucene2 indexes which are used when we install extensions. For a 4.2.x build that was an issue, but maybe no longer for a 5.0.x release.
> On Oct 26, 2026, at 10:26 AM, Pedro F. Giffuni via dev > <[email protected]> wrote: > > Nothing I am planning, but we are carrying obsolete Lucene 2.9.4. > The last Apache Lucene version that works with Java 8 is 8.11.4, which was > released in September 2024. > > Pedro. -- Jim "This is an outrage!" Tony Harrison
