ScyllaDB Open Source Release 3.0.9

ScyllaDB Open Source 3.0.9 has been released as a bugfix update for the stable 3.0 branch, maintaining backward compatibility and supporting rolling upgrades. This release addresses several issues, including redundant RPC connections during shard range repairs, marshalling errors with timezone formats in CQL, and potential races between role_manager and password_authenticator, which can cause ScyllaDB to exit. Additionally, it resolves problems with using tuples as clustering keys without to_string() implementations and fixes segmentation faults when replacing expired SSTables. Users are encouraged to report any encountered issues, and various installation options are available, including Docker, binary packages, and EC2 AMI.