Complete list of Windows Insider build numbers, what happens when a build reaches its expiration date and Creators Update release date

Technical Level : Basic

Summary

The expiration dates for Windows 10 Insider builds vary by the build number. 

The table below summarizes the expiration dates for each of the builds Microsoft has released so far. 

(Per Microsoft: Dates are subject to change.).

Note: If you want information on when a build is released to the "Slow Ring" I suggest you use Twitter to "Follow": Dona Sarkar
https://twitter.com/donasarkar/status/844957996446724097
https://twitter.com/donasarkar

You can also check Wikipedia for Slow ring information: https://en.wikipedia.org/wiki/Windows_10_version_history

Released on 2/24/17, build 15042 and 15058 (3/14/17) had no expiration date! The current build 16170 expires on 5/15/2017. 

"Redstone 2" builds (14901 and later ... 15061) will officially be the Windows 10 "Creators Update"

Expected public release date Late March or early April of 2017 (expected version number = 1703)

More: http://www.tenforums.com/windows-10-news/68031-windows-10-creators-update-surface-studio.html

The most recent Insider's ISO file available is: How to create an Installation DVD or USB for Windows Insider build

Also: How to use Microsoft's Tech Bench web site to download a Windows 10 ISO file, create installation media and activate Windows 10


Details

Build               Release             Expiration            License                 Windows will

number            date                  warnings             expiration             stop booting

                                                    begin                  date                                 

9841              10/01/14             04/02/15                04/15/15                 04/30/15

9860              10/21/14             04/02/15                04/15/15                 04/30/15

9879              11/12/14             04/02/15                04/15/15                 04/30/15

9926              01/23/15             09/17/15                10/01/15                 10/15/15

10041            03/18/15             09/17/15                10/01/15                 10/15/15

10049            03/30/15             09/17/15                10/01/15                 10/15/15

10061            04/22/15             09/17/15                10/01/15                 10/15/15

10074            04/29/15             09/17/15                10/01/15                 10/15/15

10122            05/20/15             09/17/15                10/01/15                 10/15/15

10130            05/29/15             09/17/15                10/01/15                 10/15/15  

10158            06/29/15             09/17/15                10/01/15                 10/15/15

10159            06/30/15             09/17/15                10/01/15                 10/15/15

10162            07/02/15             09/17/15                10/01/15                 10/15/15

10166            07/09/15             09/17/15                10/01/15                 10/15/15

10240            07/09/15             No expiration date listed, prerelease keys will no longer activate builds.

10525            08/18/15             07/01/16                07/15/16                 07/30/16

10532            08/27/15             07/01/16                07/15/16                 07/30/16

10547            09/18/15             07/01/16                07/15/16                 07/30/16

10565            10/16/15             07/01/16                07/15/16                 07/30/16

10576            10/29/15             07/01/16                07/15/16                 07/30/16

10586            11/05/15             This build is permanently activated.

                                                  It is the Threshold 2 update (Windows version 1511)

                                                  Run  winver.exe to verify the build and version number

11082            12/16/15             07/01/16                07/15/16                 07/30/16

11099            01/13/16             07/01/16                07/15/16                 07/30/16

11102            01/21/16             07/01/16                07/15/16                 08/01/16

14251            01/27/16             07/01/16                07/15/16                 08/01/16

14257            02/03/16             07/01/16                07/15/16                 08/01/16     What's new

14267            02/18/16             07/01/16                07/15/16                 08/01/16     What's new

14271            02/24/16             07/01/16                07/15/16                 08/01/16     What's new

14279            03/04/16             07/01/16                07/15/16                 08/01/16     What's new

14291            03/17/16             07/01/16                07/15/16                 08/01/16     What's new

14295            03/25/16             07/01/16                07/15/16                 08/01/16     What's new

14316            04/06/16             07/01/16                07/15/16                 08/01/16     What's new

14328            04/22/16             07/01/16                07/15/16                 08/01/16     What's new

14332            04/26/16             07/01/16                07/15/16                 08/01/16     What's new

14342            05/10/16             07/01/16                07/15/16                 08/01/16     What's new

14352            05/26/16             07/01/16                07/15/16                 08/01/16     What's new

14361            06/08/16             07/01/16                07/15/16                 08/01/16     What's new

14367            06/16/16             09/17/16                10/01/16                 10/15/16     What's new

14371            06/22/16             09/17/16                10/01/16                 10/15/16     What's new

14372            06/23/16             09/17/16                10/01/16                 10/15/16     What's new

14376            06/28/16             See Note #1                                                              What's new

14379            06/30/16             See Note #2                                                              What's new

14383            07/07/16             See Note #3                                                              What's new

14385            07/09/16             See Note #4                                                              What's new

14388            07/12/16     slmgr /xpr returns “The machine is permanently activated”. What's new

14390            07/15/16     slmgr /xpr returns “The machine is permanently activated”. What's new

14393            07/18/16     slmgr /xpr returns “The machine is permanently activated”. What's new

=======>    08/02/16  Windows 10 Anniversary edition released  <==================

===> Build 14901 and later, code name Redstone 2 will be named "Creators Update"  <======

Build             Release           Expiration                 License                Windows will

number          date                warnings                  expiration            stop booting

                                                  begin                     date</

 

Forum Article Info


Last updated October 20, 2018 Views 19,396 Applies to:

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Check this list of builds and their expiration dates: Complete list of Windows Insider builds released after the Spring / April Creators Update and what happens when a build reaches its expiration date

Also enter:  winver  in the search box and tap the 'Enter" key.

For activation status enter:  activation  in the search box.

Never be afraid to ask. This forum has some of the best people in the world available to help.
My Windows 10 is version 1709 (build 16299.371). Is there an expiration date?
Thanks for the info, got caught by surprise (As I was busy with "Patch Tuesday" updates for several Windows 7 computers on the 14th) with Build 15058 being released only 4 days after 15055. Install took longer than expected and my wireless key need a little giggle to get the Ctrl+C and Ctrl+V keys to work. I'm guessing in about 2 weeks (March 28th) will be the release date for the Creator's Update.
Never be afraid to ask. This forum has some of the best people in the world available to help.

my copy of 15058 does not seem to have an expiry date.

maybe its fallen into the hole created by fixing the 'stretch year'? (a rip in the space/time continuum?) ;)

Thanks, it's fixed. 5/34/17 is a "Stretch Year" ;-)
Never be afraid to ask. This forum has some of the best people in the world available to help.

first - very useful information, well presented.

just a minor typo -build 15002 expiration warnings begin on 05/34/17, this date does not appear in my calendar, should it be 05/17/17?

Yes you can, Windows Update is the normal method used to install the next build.
Never be afraid to ask. This forum has some of the best people in the world available to help.

cant you just get the next build through windows update?

Am I fine if it says it is permanently activated?

Computer person... also a Mopar technician.
CEO of Independent LLC

It took me 3 days to get from 14915 to 14931 and I had to perform a "Restore" to get it at all.

Remember these are beta version of Windows (which is why they are not released to the general public, just "Insiders" and as such you should expect problems.

Never be afraid to ask. This forum has some of the best people in the world available to help.
I'm stuck on 14905, windows update won't show any new updates even though I'm on the fast ring. ISO's are not provided for any build beyond 14393 so I'll be forced to completely wipe my computer to install that build. It's awful that Windows Update is so broken on windows 10, forced updates, forced restarts, blue screens for insiders... Microsoft is sick.

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