Databricks Runtime 7.3 was a Long-Term Support (LTS) version that likely reached its end of life around February 2023. However, Databricks does not publicly announce exact end-of-life dates.

Important Considerations:

• End of Support: After the end-of-life date, Databricks no longer provides updates, bug fixes, or security patches for this version.
• Security Risks: Using an unsupported runtime version can expose your environment to vulnerabilities.
• Recommendation: It is strongly recommended that you upgrade to the latest LTS version of Databricks Runtime to ensure you have the latest features, bug fixes, security patches, and optimal performance.