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What .NET Framework version numbers go with what service pack

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I got a comment from a customer in response to a previous blog post asking about file versions for the various versions and service packs of the .NET Framework. I was planning on just navigating to an MSDN site and replying with a link, but I couldn't find anything like that in any MSDN article or any KB article, so I figured I could come up with a quick table listing them. Keep in mind that not every file is updated by every service pack, so you may not see this exact version for all of the files that are part of the .NET Framework. Also, because of some of the magic that the Visual Studio and .NET Framework build lab uses to build some of the files that are part of the .NET Framework, you may see a .NET Framework-like version number (one that starts with 1.0, 1.1, or 2.0) or a Visual Studio-like version number (one that starts with 7.0, 7.10, or 8.0).

.NET Framework product version

Service pack level

Version

.NET Framework 1.0

Original release

1.0.3705.0 and 7.0.9466.0

.NET Framework 1.0

Service pack 1

1.0.3705.209

.NET Framework 1.0

Service pack 2

1.0.3705.288 and 7.0.9502.0

.NET Framework 1.0

Service pack 3

1.0.3705.6018 and 7.0.9951.0

.NET Framework 1.1

Original release

1.1.4322.573 and 7.10.3052.4

.NET Framework 1.1

Service pack 1

1.1.4322.2032 (if you have the MSI-based 1.1 SP1 installed) or 1.1.4322.2300 (if you have the OCM-based 1.1 SP1 installed on Windows Server 2003) and 7.10.6001.4

.NET Framework 2.0

Beta 1

2.0.40607.16 and 8.0.40607.16

.NET Framework 2.0

Beta 2

2.0.50215.44 and 8.0.50215.44

.NET Framework 2.0

Original release

2.0.50727.42 and 8.0.50727.42

.NET Framework 2.0

Service pack 1

2.0.50727.1433 and 8.0.50727.1433

.NET Framework 2.0

Service pack 2

2.0.50727.3053 and 8.0.50727.3053

.NET Framework 3.0

Original release

3.0.04506.26 (on Windows Vista) and 3.0.04506.30 (on downlevel operating systems)

.NET Framework 3.0

Service pack 1

3.0.04506.648

.NET Framework 3.0

Service pack 2

3.0.04506.2152

.NET Framework 3.5

Original release

3.5.21022.8 and 9.0.21022.8

.NET Framework 3.5

Service pack 1

3.5.30729.1 and 9.0.30729.1

.NET Framework 4

Original release

4.0.30319.1 and 10.0.30319.1

Please note that it is definitely not reliable to use the file versions in the above table to detect the installed service pack level. If you're interested in accurately determining what version of the .NET Framework is installed and what service pack is installed I would recommend checking out the blog post and sample code that I previously posted at this location.

<update date="1/31/2006"> Added another possible version number for 1.1 SP1. The files have different versions depending on whether you have the MSI-based .NET Framework 1.1 package installed or the OCM-based .NET Framework 1.1 package that is included as a part of Windows Server 2003 </update>

<update date="3/3/2006"> Added a column to the table for the final release of the .NET Framework 2.0 now that it has shipped </update>

<update date="3/20/2007"> Added a column to the table for the final release of the .NET Framework 3.0 now that it has shipped </update>

<update date="3/6/2008"> Added columns to the table for the .NET Framework 2.0 SP1, the .NET Framework 3.0 SP1 and the .NET Framework 3.5 now that they have shipped </update>

<update date="8/14/2008"> Added columns to the table for the .NET Framework 2.0 SP2, the .NET Framework 3.0 SP2 and the .NET Framework 3.5 SP1 now that they have shipped </update>

<update date="4/27/2010"> Added a column to the table for the .NET Framework 4 </update>

Comments

  • Anonymous
    March 02, 2006
    Just for completeness, the version number of the final .net 2 redistributable release is

    v2.0.50727

  • Anonymous
    October 16, 2007
    http://ben.skyiv.com/clrversion.html please help check the table. thank you!

  • Anonymous
    October 17, 2007
    The comment has been removed

  • Anonymous
    October 17, 2007
    Hi Aaron Stebner: Thank you very much!

  • Anonymous
    January 19, 2009
    Hi... Please add an entry for WIn7 beta: .NET 2.0: 2.0.50727.3521

  • Anonymous
    January 19, 2009
    Hi Sushovande - Win7 is still in beta, so I'm going to hold off on updating this blog post until Win7 ships and add a column to the table with the exact version numbers for the .NET Framework 2.0, 3.0 and 3.5 that end up shipping with Win7.

  • Anonymous
    June 20, 2009
    On my Windows Vista SP1, .NET Framework version is 2.0.50727.3074, what is this version? .NET 2.0 SP2+?

  • Anonymous
    June 21, 2009
    Hi Skyivben - The systems that I have all have the .NET Framework 2.0 SP2 and the version numbers of files is 2.0.50727.3053.  I'm guessing that the 3074 version is from a hotfix - do you have any .NET Framework hotfixes installed on your system?  Also, which exact file(s) do you see with that version number?

  • Anonymous
    June 21, 2009
    On my Windows XP SP3, .NET Framework version is 2.0.50727.3082: Console.WriteLine(Environment.Version); Hotfix: KB958481 http://support.microsoft.com/kb/958481 2.0.50727.3053 => 2.0 SP2 2.0.50727.3074 => 2.0 ? 2.0.50727.3082 => 2.0 ?

  • Anonymous
    June 22, 2009
    Hi Skyivben - SP2 is the latest available service pack for the .NET Framework 2.0.  If you have a version number higher than 2.0.50727.3053, then the files are coming from a .NET Framework 2.0 hotfix. I'm not sure exactly what version ships in every .NET Framework hotfix, but as you noted, the 3082 version is coming from KB958481.

  • Anonymous
    June 29, 2009
    2.0.50727.3074 is the WinXP/Win2003 version of the same hotfix (KB 958481). 2.0.50727.3082 is the Vista/Win2008 version.

  • Anonymous
    June 27, 2010
    2.0.50727.4927 (KB 974714) support.microsoft.com/.../974714

  • Anonymous
    October 22, 2014
    microsoft made such a mixed up mess, you are better off downloading www.asoft.be/prod_netver.html to organize and understand the versioning mess