3.0.0 Release Candidate.

[trivialfis]

Hi everyone, we are delighted to announce a new release 3.0.0 for XGBoost in the upcoming weeks. We invite everyone to try out the release candidate (RC).

Draft of the release note: #11285

Feedback period: until the end of March 06, 2025. No new feature will be added to the release branch; only bug fixes will be backported. If you have specific items that you want to include in the upcoming release, please share them in the comment below. Let's ensure that:

• Each item has an associated ticket
• Blocking issue must be marked as blocking
• Breaking change must be marked as breaking

@dmlc/xgboost-committer

Available packages:

• Python package
  Coming soon.
• JVM packages
  Coming soon.
• R package
  Coming soon.

[terrytangyuan]

Great to see this! Thank you for your work on this.