Prepare version 2.15.0
Merged
KL
15h ago+12+12+01234567890123456789-0-0-0123456789
Prepare 2.15.0 for httpx2 and httpcore2 with a changelog entry for #1274.
This is a minor release because it drops support for Python 3.10, matching how #208 dropped Python 3.9 in 2.1.0.
Package versions remain derived from the release tag. No tag or release is created by this PR.
AI Disclaimer
This PR was developed with the assistance of either Claude or Codex. I've reviewed and verified the changes.