Changes

Misc

• Update CONTRIBUTING.md with information on how to run tests by @cmelchior in #1392

Auth

• fix(auth): [Security] Avoid writing session credentials to the platform log & mask sensitive values by @hieuwu in #1391

Realtime

• fix(realtime): include join_ref on leave and access_token messages by @grdsdev in #1402
• Add more articles and sample by @hieuwu in #1401
• fix(realtime): prevent heartbeat tick from racing disconnect() by @alperen-kaplan in #1395

Storage

• Change: feat(storage): add new storage exception and expose code parameter by @jan-tennert in #1376. All Storage methods no longer throw a generic exception, but a StorageRestException
• fix(storage): keep the file size a Long when sizing an upload chunk by @AndroidPoet in #1404
• fix(storage): fix reading resumable uploads back from the cache by @AndroidPoet in #1405
• fix(storage): keep the error and message when an error body has no code by @AndroidPoet in #1407

Docs

• docs: how to read the library logs on iOS by @veropduro in #1408
• docs: notes for writing a custom SessionManager by @veropduro in #1409

New Contributors

• @alperen-kaplan made their first contribution in #1395
• @AndroidPoet made their first contribution in #1404
• @veropduro made their first contribution in #1408

Full Changelog: 3.8.0...3.9.0-beta-1