[Java] Performance powered by OpenTelemetry

[adinauer]

Description

Project issue to collect milestones, issues etc. for 8.0.0 of our Java SDK. This major will come with native OpenTelemetry support for tracing and will replace our proprietary tracing logic.

[adinauer]

We released beta.2 on Nov 13th and already got some positive feedback as well as 600k transactions and a few thousand error events in terms of usage - no complaints so far.

We're currently working on docs for GA, as well as some leftover tasks for rc.1.

[adinauer]

We released beta.3 on Nov 22nd. Feedback so far is good. We wanna fix #3932 and then release rc.1.

[adinauer]

We just released rc.1 and are working on bumping Spring Boot to 3.4.0 where there's some minor problems. We likely need a couple small bugfixes which we're planning to release as rc.2. Depending on how long it takes us to get those merged, we might have to delay GA until January.

[adinauer]

• We're still busy looking into some tracing bugs. Those should be finished this week.
• There's been a report of a Spring Boot 3.4 application being broken because of Sentry which we have to look into before GA.
• We still have to create docs for some v8 changes, most importantly OpenTelemetry.
• There's some triaging work planned for next week as well.

Since we don't want to GA too close to holidays, we're postponing GA release until January.

[adinauer]

We have released https://github.com/getsentry/sentry-java/releases/tag/8.0.0-rc.2 which includes changes up to 7.18.1 and mostly fixes bugs regarding Tracing without Performance.