End of life / .NET Full Framework / 3.5-sp1

.NET Full Framework 3.5-sp1 end of life

.NET Full Framework 3.5-sp1 reaches end of life on 9 January 2029, in 856 days.

The detail

Released: 19 November 2007
End of life: 9 January 2029
Countdown: in 856 days
Status: Supported
Long term support: No
Newest release overall: 4.8.1

CVEs that reach 3.5-sp1

CVEs affecting .NET Full Framework are serviced by Windows rather than by changing the .NET Full Framework version, so they are not listed here.

Other .NET Full Framework releases

4.8.1
4.8
4.7.2
4.7.1
4.7
4.6.2
4.6.1
4.6
4.5.2
4.5.1
4.5
4.0

Vendor sources last checked 6 September 2026, and checked daily. This data last changed on 6 September 2026.

You just looked this up by hand, for one version

StackDrift scans your machines, works out every version you actually run, and mails you before the next support window closes or a CVE lands on a build you have deployed. It covers the runtimes, operating systems and kernels underneath your code, not just your packages.

See pricing