ScyllaDB Open Source Release 3.0.3

ScyllaDB Open Source 3.0.3 is a bugfix release for the ScyllaDB Open Source 3.0 stable branch, ensuring backward compatibility and supporting rolling upgrades. This release addresses several issues, including the rejection of SSTables containing counters from Cassandra 2.0 and earlier, disabling TLS1.0 by default to enhance security, and fixing rare instances where commit log replay fails after unexpected node restarts. Additionally, it resolves problems with failed streaming operations and a rare race condition that could cause ScyllaDB to exit during schema updates and node restarts. Users are encouraged to report any problems they encounter with this release.