.NET Framework versions estimated lifecycle and support

Below is an estimated support lifecycle for .NET Framework and above. It is compiled based on lifecycle and support documents coming from Microsoft, and is not meant to be an official support document.

You can use this document to roughly gauge what versions are supported at this moment, and when support will end.

Please note that, in order to encourage upgrade, the current table will only show IX projects support that is current. You are intentionally left on your own to figure out if previous IX projects versions support older, out-of-support frameworks or not. The exception is that I have pointed out those framework versions which still work with .NET Standard 2.0, due to the wide reach of this kind of target in other active libraries.

Support for .NET Framework below .NET 4.7.2 will slowly be dropped, and, at the first initiative from Microsoft, the .NET Framework 4.6.2 target will be either updated or dropped entirely. Once support for anything below 4.7.2 is dropped, then the framework target will also be dropped, and the .NET Standard 2.0 will take over.

I fully expect that, by the end of 2025, there will no longer be any reason to support anything below that year's LTS .NET release.

For every version of the below framework versions that become unsupported, the next release of any IX library will remove support for it.

Starting January 2024, this document will link to the version of itself immediately prior to it.

.NET Version lifecycle

Symbols legend

Symbol Meaning
Not supported
✖️ Not officially supported, but may run1
Still supported, but use is not advised
⚠️ Still supported, but only for a short while
✔️ Supported
Currently unreleased, everything is estimated

.NET Framework

Click to see versions no longer in support
Version IX Support MS Support Last IX.StandardExtesions support
⇐ 1.1 SP1 ❌ (14th July, 2015) (never supported)
2.0 SP2 ❌ (12th July, 2011)2
3.0 SP2 ❌ (12th July, 2011)2
3.5 SP1 ❗ (9th January, 2029)2
4.0 ❌ (12th January, 2016)
4.5 ❌ (12th January, 2016)
4.5.1 ❌ (12th January, 2016)
4.5.2 ❌ (26th April, 2022)
4.6 ❌ (26th April, 2022)
4.6.1 ❌ (26th April, 2022) 3
Version IX Support MS Support Last IX.StandardExtesions support
4.6.2 ✔️ ✔️ (12th January, 2027) IX.StandardExtensions NuGet (active support)
4.7 ✔️ ✔️ (12th January, 2027)4
4.7.1 ✔️ ✔️ (12th January, 2027)4
4.7.2 ✔️ ✔️ (9th January, 2029)4
4.8 ✔️ ✔️ (14th October, 2031)4
4.8.1 ✔️ ✔️ (14th October, 2031)4

Silverlight

Silverlight has never been supported by IX projects.

Windows Phone

Windows Phone has never been supported by IX projects. It is probably possible to use some versions of libraries, but Windows Phone is no longer supported by Microsoft.

.NET Standard

The .NET Standard, as a stepping stone for truly unifying the .NET platform, was intended as a way to standardize the common features guaranteed to be available on supported platforms. As such, the concept of "support" is not really applicable, but can be a good indicator to whether or not the standard in question may or may not have already lost traction, and should be abandoned.

Click to see versions no longer in support
Version IX Support MS Support Last IX.StandardExtesions support
1.0 ❌ (12th January, 2016)
1.1 ❌ (12th January, 2016)
1.2 ❌ (12th January, 2016)
1.3 ❌ (26th April, 2022)
1.4 ❌ (26th April, 2022)
1.5 ❌ (26th April, 2022)
1.6 ❌ (26th April, 2022)
2.1 ❌ (13th December, 2022) 3
Version IX Support MS Support Last IX.StandardExtesions support
2.0 ✔️ ✔️ (14th October, 2031)4 5 IX.StandardExtensions NuGet (active support)

.NET

Click to see versions no longer in support
Version IX Support MS Support Last IX.StandardExtesions support
Core 1.0 ❌ (27th June, 2019)
Core 1.1 ❌ (27th June, 2019)
Core 2.0 ✖️ ❌ (1st October, 2018) 3
Core 2.1 ✖️ ❌ (21st August, 2021) 3
Core 2.2 ✖️ ❌ (23rd December, 2019) 3
Core 3.0 ✖️ ❌ (3rd March, 2020) 3
Core 3.1 ✖️ ❌ (13th December, 2022) 3
5 ✖️ ❌ (10th May, 2022) 3
7 ✖️ ❌ (8th May 2024) 3
Version IX Support MS Support Last IX.StandardExtesions support
6 ⚠️ ⚠️ (12th November, 2024) IX.StandardExtensions NuGet (active support)
8 ✔️ ✔️ (10th November 2026)

Source Microsoft Windows OS lifecycle tables

This table shows estimated Microsoft Windows estimated support dates, onto which .NET versions are based.

Like the previous tables, this is compiled as support for IX projects users and is not meant to be an official Microsoft support document.

As per official recommendations, it is advisable that, once mainstream support has ended, that the Windows OS be migrated to a newer version, although extended support will still keep the OS operation safe. After extended support has finished, and until ESU is done, it is recommended that the OS only be used on mission-critical systems that cannot otherwise be updated. After that time has passed, it is no longer advisable to use that operating system. IX projects will only be supported on supported operating systems, and only as long as they are able to run any supported .NET runtime.

If an OS version appears here, then it either is currently supported, or has been supported at some time in the past. If an OS shows as not supported, and you absolutely must use it, then please refer to the tables above and find out which IX library is the last that was supported on the runtime which you are able to install. It is entirely possible that you might be able to install even the latest version, however, any issue encountered as a result of the OS version, especially those caused by bugs which were fixed in later runtimes and/or later OS versions, will not be dealt with unless a commercial contract is signed.

OS Versions that do not appear here have never been supported by any IX library.

Client Windows OS

Click to see versions no longer in support

No Windows versions that have launched before Windows 7 SP1 are officially supported.

Version Mainstream Support Extended Support ESU IX Support
Windows 7 SP1 ❌ 2015.01.13 ❌ 2020.01.14 ❌ 2023.01.10 ✖️
Windows 8 ❌ 2016.01.12 ❌ 2016.01.12 - ✖️
Windows 8.1 ❌ 2018.01.09 ❌ 2023.01.10 - ✖️
Windows 10 1507 ❌ 2017.05.09 - - ✖️
Windows 10 1151 ❌ 2017.10.10 - - ✖️
Windows 10 1607 ❌ 2019.04.09 - - ✖️
Windows 10 1703 ❌ 2019.10.08 - - ✖️
Windows 10 1709 ❌ 2020.10.13 - - ✖️
Windows 10 1803 ❌ 2021.05.11 - - ✖️
Windows 10 1809 ❌ 2021.05.11 - - ✖️
Windows 10 1903 ❌ 2020.12.08 - - ✖️
Windows 10 1909 ❌ 2022.05.10 - - ✖️
Windows 10 2004 ❌ 2021.12.04 - - ✖️
Windows 10 20H2 ❌ 2023.05.09 - - ✖️
Windows 10 21H1 ❌ 2022.12.13 - - ✖️
Windows 10 21H2 ❌ 2023.06.13 - - ✖️
Windows 11 21H2 ❌ 2023.10.10 - - ✖️
Version Mainstream Support Extended Support ESU IX Support
Windows 10 22H2 ✔️ 2025.10.14 - - ✔️
Windows 11 22H2 ⚠️ 2024.10.08 - - ✔️
Windows 11 23H2 ✔️ 2025.11.11 - - ✔️

Enterprise and special edition Windows OS

The following table shows Enterprise and special edition Windows OSes on the modern lifecycle. Anything below this will be using the regular client table (and is out of support anyway).

Version Mainstream Support Extended Support ESU IX Support
Windows 10 21H2 ❌ 2024.06.11 - - ✖️
Windows 10 2015 LTSB - ✔️ 2025.10.14 - ✔️
Windows 10 2016 LTSB - ✔️ 2026.10.13 - ✔️
Windows 10 2019 LTSC - ✔️ 2029.01.09 - ✔️
Windows 10 Enterprise LTSC 2021 - ✔️ 2027.01.12 - ✔️
Windows 11 21H2 ⚠️ 2024.10.08 - - ✔️
Windows 10 22H2 ✔️ 2025.10.14 - - ✔️
Windows 11 22H2 ✔️ 2025.10.14 - - ✔️
Windows 11 23H2 ✔️ 2026.11.10 - - ✔️

Server Windows OS

Click to see versions no longer in support

No Windows Server versions that have launched before 2008 R2 are officially supported.

Version Mainstream Support Extended Support ESU IX Support
Windows Server 2008 R2 ❌ 2015.01.13 ❌ 2020.01.14 ❌ 2024.01.09 ✖️
Windows Server 2012 ❌ 2018.10.09 ❌ 2023.10.10 ❗ 2026.10.13 6
Windows Server 2012 R2 ❌ 2018.10.09 ❌ 2023.10.10 ❗ 2026.10.13 6
Windows Server Version 1709 - ❌ 2019.04.09 - ✖️
Windows Server Version 1803 - ❌ 2019.11.12 - ✖️
Windows Server Version 1809 - ❌ 2020.11.10 - ✖️
Windows Server Version 1903 - ❌ 2020.12.08 - ✖️
Windows Server Version 1909 - ❌ 2021.05.11 - ✖️
Windows Server Version 2004 - ❌ 2021.12.14 - ✖️
Windows Server Version 20H2 - ❌ 2022.08.09 - ✖️
Version Mainstream Support Extended Support ESU IX Support
Windows Server 2016 ❌ 2022.01.11 ✔️ 2027.01.12 - ✔️
Windows Server 2019 ❌ 2024.01.09 ✔️ 2029.01.09 - ✔️
Windows Server 2022 ✔️ 2026.10.13 ✔️ 2031.10.14 - ✔️

Source Apple OS lifecycle tables

In the interest of providing the best support information available, the Apple OS tables have been explicitly added and will be continuously updated with new information.

If an OS version appears here, then it either is currently supported, or has been supported at some time in the past. If an OS shows as not supported, and you absolutely must use it, then please refer to the tables above and find out which IX library is the last that was supported on the runtime which you are able to install. It is entirely possible that you might be able to install even the latest version, however, any issue encountered as a result of the OS version, especially those caused by bugs which were fixed in later runtimes and/or later OS versions, will not be dealt with unless a commercial contract is signed.

OS Versions that do not appear here have never been supported by any IX library.

macOS

Click to see versions no longer in support

No macOS versions that have launched before macOS 10.15 "Catalina" are officially supported.

Version Mainstream Support IX Support
macOS 10.15 "Catalina" ❌ (2022.09.12) ✖️
macOS 11 "Big Sur" ❌ (2023.09.26) ✖️
macOS 12 "Monterey" ❌ (2024.07.16) ✖️
Version Mainstream Support IX Support
macOS 13 "Ventura" ✔️ ✔️
macOS 14 "Sonoma" ✔️ ✔️
macOS 15 "Sequoia" ✔️ ✔️

Source Linux OS lifecycle tables

In the interest of providing the best support information available, the Linux OS tables have been explicitly added and will be continuously updated with new information.

If an OS version appears here, then it either is currently supported, or has been supported at some time in the past. If an OS shows as not supported, and you absolutely must use it, then please refer to the tables above and find out which IX library is the last that was supported on the runtime which you are able to install. It is entirely possible that you might be able to install even the latest version, however, any issue encountered as a result of the OS version, especially those caused by bugs which were fixed in later runtimes and/or later OS versions, will not be dealt with unless a commercial contract is signed.

OS Versions that do not appear here have never been supported by any IX library.

Ubuntu

Click to see versions no longer in support

No Ubuntu versions that have launched before 16.04 are officially supported.

Version Mainstream Support Extended Support IX Support
16.04 "Xenial Xerus" ❌ (2021.04.02) ✔️ (2026.04.01) 6
18.04 "Bionic Beaver" ❌ (2023.04.02) ✔️ (2028.04.01) 6
19.04 "Disco Dingo" ❌ (2020.01.06) - ✖️
19.10 "Eoan Ermine" ❌ (2020.07.06) - ✖️
20.10 "Groovy Gorilla" ❌ (2021.07.22) - ✖️
21.04 "Hirsute Hippo" ❌ (2022.01.20) - ✖️
21.10 "Impish Indri" ❌ (2022.07.31) - ✖️
22.10 "Kinetic Kudu" ❌ (2023.07.20) - ✖️
23.04 "Lunar Lobster" ❌ (2024.01.20) - ✖️
23.10 "Mantic Minotaur" ❌ (2024.07.01) - ✖️
Version Mainstream Support Extended Support IX Support
20.04 "Focal Fossa" ✔️ (2025.04.02) ✔️ (2030.04.01) ✔️
22.04 "Jammy Jellyfish" ✔️ (2027.04.02) ✔️ (2032.04.01) ✔️
24.04 "Noble Numbat" ✔️ (2029.04.02) ✔️ (2034.04.01) ✔️

Alpine

Click to see versions no longer in support

No Alpine Linux versions that have launched before 3.8 are officially supported.

Version Mainstream Support IX Support
3.8 ❌ (2020.05.01) ✖️
3.9 ❌ (2021.01.01) ✖️
3.10 ❌ (2021.05.01) ✖️
3.11 ❌ (2021.11.01) ✖️
3.12 ❌ (2022.05.01) ✖️
3.13 ❌ (2022.11.01) ✖️
3.14 ❌ (2023.05.01) ✖️
3.15 ❌ (2023.11.01) ✖️
3.16 ❌ (2024.05.23) ✖️
Version Mainstream Support IX Support
3.17 ⚠️ (2024.11.22) ✔️
3.18 ✔️ (2025.05.09) ✔️
3.19 ✔️ (2025.11.01) ✔️
3.20 ✔️ (2026.04.01) ✔️

CentOS

No CentOS versions that have launched before 8 are officially supported.

Version Mainstream Support IX Support
Linux 8 ❌ (2021.12.31) ✖️
Stream 8 ❌ (2024.05.31) ✖️
Stream 9 ✔️ (2027.05.31) ✔️

Red Hat Enterprise Linux

No RHEL versions that have launched before 8 are officially supported.

Version Mainstream Support Extended Support IX Support
8 ❌ (2024.05.31) ✔️ (2029.05.31) ✔️
9 ✔️ (2027.05.31) ✔️ (2032.05.31) ✔️

Debian and Raspbian

Click to see versions no longer in support

No Debian versions that have launched before 8 are officially supported.

Version Mainstream Support IX Support
8 "Jessie" ❌ (2020.06.30) ✖️
9 "Stretch" ❌ (2022.06.30) ✖️
10 "Buster" ❌ (2024.06.01) ✖️
Version Mainstream Support IX Support
11 "Bullseye" ✔️ (2026.08.15) ✔️
12 "Bookworm" ✔️ (2028.06.10) ✔️

Raspbian follows the same version as the Debian version that it?s based on.

Fedora

Click to see versions no longer in support

No Fedora Linux versions that have launched before 29 are officially supported.

Version Mainstream Support IX Support
29 ❌ (2019.11.26) ✖️
30 ❌ (2020.05.26) ✖️
31 ❌ (2020.11.30) ✖️
32 ❌ (2021.05.25) ✖️
33 ❌ (2021.11.30) ✖️
34 ❌ (2022.06.07) ✖️
35 ❌ (2022.12.13) ✖️
36 ❌ (2023.05.16) ✖️
37 ❌ (2023.11.15) ✖️
38 ❌ (2024.05.18) ✖️
Version Mainstream Support IX Support
39 ⚠️ (2024.12.07) ✔️
40 ✔️ (2025.05.03) ✔️
41 ✔️ (2025.11.30)4 ✔️

openSUSE

Click to see versions no longer in support

No openSUSE versions that have launched before 15 are officially supported.

Version Mainstream Support IX Support
15.0 ❌ (2019.12.03) ✖️
15.1 ❌ (2021.02.02) ✖️
15.2 ❌ (2021.12.01) ✖️
15.3 ❌ (2022.12.01) ✖️
15.4 ❌ (2023.12.07) ✖️
Version Mainstream Support IX Support
15.5 ⚠️ (2024.12.31) ✔️
15.6 ✔️ (2025.12.31) ✔️

SUSE Linux Enterprise Server

No SLES versions that have launched before 12.5 are officially supported.

Version Mainstream Support Extended Support IX Support
12.5 ⚠️ (2024.10.31) ✔️ (2027.10.31) ✔️
15 ❌ (2019.12.31) ❌ (2022.12.31) ✖️
15.1 ❌ (2021.01.31) ❌ (2024.01.31) ✖️
15.2 ❌ (2021.12.31) ⚠️ (2024.12.31) ✔️
15.3 ❌ (2022.12.31) ✔️ (2025.12.31) ✔️
15.4 ❌ (2023.12.31) ✔️ (2026.12.31) ✔️
15.5 ✔️ (2024.12.31) ✔️ (2027.12.31) ✔️
15.6 ✔️ (2025.12.31)4 ✔️ (2028.12.31)4 ✔️
15.74 ✔️ (2031.07.31) ✔️ (2034.07.31) ✔️

References

Lifecycle and information for .NET

Lifecycle for operating systems

Document metadata

Last update: 30th September, 2024 - Read previous version of this document


  1. Not supported because of underlying OS support or underlying framework support having been dropped by the parent company. However, there is no technical reason why the latest versions of IX libraries wouldn't work on those OSes, OS versions or frameworks

  2. .NET Framework versions 2.0 and 3.0 are noted to be an integral part of .NET 3.5, and are supported under a single lifecycle policy, and Microsoft stated that their components will continue to be supported for as long as .NET 3. SP1 remains in support, while running under .NET 3.5 SP1; full statement can be found on this page.

  3. Can still run latest via .NET Standard 2.0

  4. Estimated date based on available information at the time of last references update.

  5. Although the .NET Standard 2.0 is basically compatible with .NET Framework 4.6.1 and above, it has been IX projects practice to target the framework itself rather than .NET Standard due to framework resolution conflicts if Framework targets are specified

  6. The OS or OS version is supported, however its use is only recommended for mission-critical systems, and should be updated or upgraded as soon as possible