Can we make the change only for Solr 10, where breaking changes are acceptable? Or, does it need to be in 9x?
On Tue, 16 Sept 2025 at 02:06, Christos Malliaridis <c.malliari...@gmail.com> wrote: > Hello everyone, > > I am seeking advice for a potential breaking change that I may introduce > with backporting the FasterXML version update (from 2.18.0 to 2.20.0). > > The new version improves (as far as I understand the changelogs) the > efficiency of the CBOR serialization, leading to smaller serialized > objects. I believe that is the reason why the test (see backport PR commit > [1]) was failing and had to be updated. > > However, I cannot estimate the impact of this change. I am not sure if the > different byte size could break compatibility with any existing > (serialized) data during an update (if the test checks the byte size there > is likely a reason). I believe there is no risk of backporting, but I > wanted to be sure before merging the version update to 9x. > > Best, > Christos > > [1] > > https://github.com/apache/solr/pull/3536/commits/5e0210a180f1aac5b3086a69735d60409e12dabd >
