Unfortunately there's no changelog, but most of the changes look either unimpactful/not relevant (e.g. many changes to the operator), or look like pretty simple bugfixes. There were some changes to the defaults of and/or semantics of specifying otlp ports, for instance https://github.com/jaegertracing/helm-charts/pull/491 and https://github.com/jaegertracing/helm-charts/pull/479. Might be something to watch out for, but also probably fine.
Upstream also now includes a fix for T358111: oauth2-proxy config changes don't cause any change in the helm Deployment -- our corresponding patch against deployment-charts was actually never merged, and I'll just abandon it once this task is done.