generated: '2026-06-20'
method: searched
source: >-
  https://learn.microsoft.com/en-us/sql/sql-server/end-of-support/sql-server-end-of-support-overview
  and https://learn.microsoft.com/en-us/lifecycle/products/ (Microsoft Fixed
  Lifecycle Policy)
versioning:
  scheme: named-release        # SQL Server 2016/2017/2019/2022/2025 (internal 13.x/14.x/15.x/16.x/17.x)
  current: SQL Server 2025 (17.x)
  azure_rest_versioning:
    scheme: query-parameter
    param: api-version
    example: '2021-11-01'
    note: Azure Resource Manager (management.azure.com) requires a dated api-version query parameter on every request.
  docs: https://learn.microsoft.com/en-us/sql/sql-server/what-s-new-in-sql-server-2025
support_policy:
  model: Microsoft Fixed Lifecycle Policy
  phases: [mainstream, extended]
  mainstream_note: Functional, performance, scalability, and security updates.
  extended_note: Security updates only.
  extended_security_updates: >-
    Extended Security Updates (ESU) available for up to three additional years,
    including free ESUs when migrated to Azure.
  docs: https://learn.microsoft.com/en-us/sql/sql-server/end-of-support/sql-server-end-of-support-overview
releases:
- version: SQL Server 2025 (17.x)
  mainstream_end: '2031-01-06'
  extended_end: '2036-01-06'
- version: SQL Server 2022 (16.x)
  mainstream_end: '2027-01-11'
  extended_end: '2032-01-12'
- version: SQL Server 2019 (15.x)
  mainstream_end: '2025-01-07'
  extended_end: '2030-01-08'
deprecation:
  policy_url: https://learn.microsoft.com/en-us/sql/database-engine/deprecated-database-engine-features-in-sql-server-2025
  breaking_changes_url: https://learn.microsoft.com/en-us/sql/database-engine/breaking-changes-to-database-engine-features-in-sql-server-2025
  notes: >-
    Deprecated/discontinued items are published per release. SQL Server 2025
    discontinues Data Quality Services (DQS), Master Data Services (MDS), Synapse
    Link, Web edition and Purview access policies; deprecates Hot add CPU and
    lightweight pooling (fiber mode).
  azure_sql_sunset_header: false
sla:
  azure_sql_database_url: https://www.microsoft.com/licensing/docs/view/Service-Level-Agreements-SLA-for-Online-Services
  note: Azure SQL Database publishes an availability SLA (up to 99.995% for zone-redundant Business Critical); on-premises SQL Server carries no vendor uptime SLA.
status_page: https://azure.microsoft.com/en-us/status/