* Print warning about pip-installed dependencies only once (#10638)
* Explicit install now respects `--download-only` flag (#10688)
* Bump vendored tqdm version (#10721)

* Fix `changeps1` handling for PowerShell (#10624)
* Handle unbound `$PS1` so sh activation does not fail with `set -u` (#10701)
* Fix sh activation so `$PATH` is properly restored on errors (#10631)
* Fix `-c` option handling so defaults channel is not always re-added (#10735)
* Fix artifact verification-related warnings and errors (#10627, #10677)
* Fix log level used in `conda/core/prefix_data.py` (#9998)
* Fix log level used when fetching artifact verification metadata (#10621)
* Don't create an unused S3 client at import time (#10516)
* Don't load `binstar_client` until needed (#10692)
* Reflect dropping of older Python versions in `setup.py` (#10642)

* Merge release notes and changelog to reduce maintenance burden (#10745)
* Add mentions to PyPy, Anaconda terms of service (#10329, #10712)
* Update Python versions in examples (#10329, #10744)
* Update install macOS instructions (#10728)

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