Discontinued database engine functionality in SQL Server

APPLIES TO: yes SQL Server Azure SQL Database Azure Synapse Analytics (SQL DW) Parallel Data Warehouse

This topic describes the Database Engine features that are no longer available in SQL Server.

Discontinued features in SQL Server 2019 (15.x)

The following database scoped configuration options are discontinued:
- DISABLE_BATCH_MODE_ADAPTIVE_JOIN
- DISABLE_BATCH_MODE_MEMORY_GRANT_FEEDBACK
- DISABLE_INTERLEAVED_EXECUTION_TVF

Note

No features were discontinued in SQL Server 2017 (14.x).

SQL Server 2016 (13.x) is a 64-bit application. 32-bit installation is discontinued, though some elements run as 32-bit components.
Compatibility level 90 is discontinued. For more information, see ALTER DATABASE Compatibility Level (Transact-SQL).
ActiveX subsystem is discontinued. Use command line or PowerShell scripts instead.
Startup parameters -h and -g. For more information, see Database Engine Service Startup Options.
Secure Sockets Layer (SSL) encryption is discontinued. Use Transport Layer Security (TLS) instead. For more information, see Enable Encrypted Connections to the Database Engine.