Driver Version Scheme

The following table lists all released versions of the Microsoft ODBC Driver for Oracle.

Driver version	Build number	Availability history
1.0	2.00.6235	Visual C++ 4.2 and Visual Basic 5.0, Enterprise Edition
2.0	2.73.7269	Visual Studio 97 and MDAC 1.5a
2.0 updated	2.73.7283.01	IIS 4.0
2.0 updated	2.73.7283.03	MDAC 1.5b and 1.5c
2.0 updated	2.73.7356	ODBC 3.5 SDK
2.5	2.573.2927	Visual Studio 6.0 and MDAC 2.0
2.5 updated	2.573.3513	SQL Server 7.0 SQL Server 6.5 SP5

Build 2.00.6235 (version 1) was the first release of the Microsoft ODBC Driver for Oracle. After the release of the first version, a new naming convention was adopted.

For example, 2.73.7283.03 can be divided into the following distinct components:

2 = The version number.
73 = The version of Oracle Server for which the driver was designed.
7283.03 = The build number of the driver.

Note With release 2.573.2973, the naming convention has led to some confusion that 2.573 is an earlier release than 2.73, but each section of the build number should be considered individually. The number 573 is larger than 73, so it is a newer version. Also, "2.5" indicates the driver's version number.