Regarding SQL Server lifecycle, see this doc.
Each version of SQL Server is backed by a minimum of 10 years support, which includes five years in mainstream support, and five years in extended support:
- Mainstream support includes functional, performance, scalability, and security updates.
- Extended support includes only security updates.
End of support (also sometimes known as end of life) indicates that a product has reached the end of its lifecycle, and servicing and support is no longer available for the product. For more information about the Microsoft Lifecycle, see Microsoft Lifecycle Policy.
Best regards,
Cosmog
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