SQL Server Native Client serves as a wrapper that implements two distinct data access standards:
While was essential for applications connecting to SQL Server 2014, it is now a legacy component. Organizations still using sqlncli12.dll should plan to update their connection strings to use the Microsoft ODBC Driver for SQL Server or the Microsoft OLE DB Driver for SQL Server to ensure security compliance and future compatibility. sql native client 12
Microsoft SQL Server Native Client (including version 12) starting in 2017. It is not recommended for new development. SQL Server Native Client serves as a wrapper
: While released for SQL Server 2012, it is fully compatible with SQL Server 2014, 2016, 2017, 2019, and even 2022. Installation and Downloads Microsoft® SQL Server® 2012 Native Client - QFE It is not recommended for new development
While (often referred to as SNAC 12) is frequently searched for, Microsoft never officially released a version specifically branded as "12". Instead, SQL Server Native Client 11.0 —released with SQL Server 2012—remains the final and most current version of the Native Client line. It was designed to support SQL Server 2014 (which is version 12.0) and subsequent releases through backward compatibility. Understanding the Versioning Confusion