4.8.0

Removed

• B2 now applies SSE-B2 (AES256) as the default server-side encryption to every bucket and no longer accepts none. --default-server-side-encryption none on bucket create and bucket update now fails with a message explaining that the option should be omitted. Omitting the option uses the server default.

Infrastructure

• Fix Read the Docs builds by migrating the config from the removed pdm setup to uv sync.
• Skip changelog requirement for PRs that only modify uv.lock.