========================= How can I help test this release? =========================
If you are a Spark user, you can help us test this release by taking an existing Spark workload and running on this release candidate, then reporting any regressions.
If you're working in PySpark you can set up a virtual env and install the current RC and see if anything important breaks, in the Java/Scala you can add the staging repository to your projects resolvers and test with the RC (make sure to clean up the artifact cache before/after so you don't end up building with an out of date RC going forward).
=========================================== What should happen to JIRA tickets still targeting 3.0.0? ===========================================
Committers should look at those and triage. Extremely important bug fixes, documentation, and API tweaks that impact compatibility should be worked on immediately.
================== But my bug isn't fixed? ==================
In order to make timely releases, we will typically not hold the release unless the bug in question is a regression from the previous release. That being said, if there is something which is a regression that has not been correctly targeted please ping me or a committer to help target the issue.