Support for the .NET Framework

As managing vice president, Rob Helm covers Microsoft collaboration and content management. His 25-plus years of experience analyzing Microsoft’s technology... more

Support for the .NET Framework 4, 4.5, and 4.5.1 will end on Jan. 12, 2016, according to a policy announced in Aug. 2014. These versions previously followed the support life cycle of the Windows OS on which they were running, so the new date reduces the remaining support life cycles of these versions. The .NET Framework 4.5.2 is not affected by the new policy, and this version will continue to receive support for the same time frame as the support life cycle of the Windows OS on which it is running.

The move to the .NET Framework 4.5.2 for applications designed for the .NET Framework 4, 4.5, or 4.5.1 should not be difficult. In most cases, applications do not require code changes or recompilation unless the application needs to take advantage of new features provided by the .NET Framework 4.5.2. Organizations should test with the .NET Framework 4.5.2 to ensure that no underlying changes in the framework cause regressions in their applications.

The .NET Framework 3.5 SP1 is treated as a component of the Windows OS and does not have a separate support life cycle. For example, customers running the .NET Framework 3.5 SP1 on Windows 7 are eligible for support for that version of the Framework on the same schedule as the support life cycle of Windows 7.

Atlas Members have full access

Get access to this and thousands of other unbiased analyses, roadmaps, decision kits, infographics, reference guides, and more, all included with membership. Comprehensive access to the most in-depth and unbiased expertise for Microsoft enterprise decision-making is waiting.

Membership Options

Already have an account? Login Now