Solved Windows 11 26H2 Release and Rollout Timeline

LoganVD · 2026-09-06T08:44:12-0400

Hello,

Current Environment
I currently have Windows 11 installed on my computer (either version 24H2 or 25H2).

Question
When is Windows 11 26H2 expected to be released or rolled out for my system?

Thanks in advance!

Josey Wales · 2026-09-06T08:47:41-0400

Windows 11 26H2 has been released to the Windows Insider Release Preview channel and should be release to the GP later this month or on the first Patch Tuesday of October.

LoganVD · 2026-09-06T08:50:17-0400

Josey Wales said:
Windows 11 26H2 has been released to the Windows Insider Release Preview channel and should be release to the GP later this month or on the first Patch Tuesday of October.

Thank you. :thumbsup:

spapakons · 2026-09-06T09:38:11-0400

No need to download the ISO. If you already run 25H2 just download the 26H2 Enablement Package (link in this forum soon) and install it to switch from 25H2 to 26H2. If you run 24H2 you can download the 25H2 Enablement Package and install it to switch to 25H2 first, and then install the 26H2 Enablement Package to switch to 26H2. For Windows 11 compliant PCs you don't have to manually download and install the Enablement Package, just install all Windows updates and it should be installed automatically. For unsupported computers you need to manually download and install the Enablement Package but you don't need to bypass compatibility check as it installs without checking.

IanMosley · 2026-09-06T10:35:31-0400

spapakons said:
No need to download the ISO. If you already run 25H2 just download the 26H2 Enablement Package (link in this forum soon)

AVAILABLE NOW - here

gunrunnerjohn · 2026-09-06T10:53:12-0400

Just curious, what's the big hurry? Is 26H2 going to be some revolutionary upgrade that will change your life?

wabbit · 2026-09-06T10:59:23-0400

IanMosley said:
AVAILABLE NOW - here

That's the Windows Insider release preview build. The public release should happen sometime near late September or early October. That should be offered to you through Windows Update when it's released to the public.

IanMosley · 2026-09-06T11:05:21-0400

wabbit said:
That's the Windows Insider release preview build. The public release should happen sometime near late September or early October.

The enablement package will NOT change from RP to GR

spapakons · 2026-09-06T11:46:03-0400

wabbit said:
That's the Windows Insider release preview build. The public release should happen sometime near late September or early October. That should be offered to you through Windows Update when it's released to the public.

Unless there are some visual changes in the GUI, you won't see any difference switching from 25H2 to 26H2. Besides I wouldn't use an Insider's update in the standard version, assuming it can be done, to avoid any incompatibilities. I will wait for the official release of 26H2 Enablement Package which will also include bug fixes. Early adopters usually get all bugs first. They not only get the new features, if any, first, they also get all the bugs.

HeavyHemi · 2026-09-06T11:48:17-0400

IanMosley said:
The enablement package will NOT change from RP to GR

True. It also will not change a GR build to a RP build.

I have an unsupported X99 system. For me, the enablement package, even if a bit early, was the safest and easiest option.

KevTech · 2026-09-06T11:56:34-0400

wabbit said:
That's the Windows Insider release preview build. The public release should happen sometime near late September or early October. That should be offered to you through Windows Update when it's released to the public.

The public is there now too.

For public/non insider/retail you want KB5121794.

Windows 11 Insider Release Preview build 26300.9278 (26H2) - Aug. 27

Windows Insider Blog: Hello Windows Insiders! Today, we are making this year’s annual feature update, Windows 11, version 26H2 (Build 26300.9278), available in the Release Preview Channel for customers to preview ahead of general availability later this calendar year. Windows 11, version 26H2...

www.elevenforum.com

I just installed it on mine which is not on insider.

wabbit · 2026-09-06T12:47:55-0400

KevTech said:
The public is there now too.

View attachment 181879

For public/non insider/retail you want KB5121794.

Windows 11 Insider Release Preview build 26300.9278 (26H2) - Aug. 27

Windows Insider Blog: Hello Windows Insiders! Today, we are making this year’s annual feature update, Windows 11, version 26H2 (Build 26300.9278), available in the Release Preview Channel for customers to preview ahead of general availability later this calendar year. Windows 11, version 26H2...

www.elevenforum.com

I just installed it on mine which is not on insider.

View attachment 181880

If I recall, 23H2 and the 25H2 enablement packages were offered through windows update when they were released to the public. Since Patch Tuesday is only a few days away, I might consider getting it after patch Tuesday.

spapakons · 2026-09-06T12:57:15-0400

wabbit said:
If I recall, 23H2 and the 25H2 enablement packages were offered through windows update when they were released to the public. Since Patch Tuesday is only a few days away, I might consider getting it after patch Tuesday.

That's right, for COMPLIANT systems you can install all Windows updates and eventually you will switch automatically. But for all of us running Windows 11 on unsupported computers the Enablement Package is not offered from Windows Update. We need to manually download it and install it. No big deal the links will be uploaded on the Forum once released or we can download it from Microsoft Update Catalog if we know the KBxxxxx code.

HeavyHemi · 2026-09-06T13:03:36-0400

spapakons said:
That's right, for COMPLIANT systems you can install all Windows updates and eventually you will switch automatically. But for all of us running Windows 11 on unsupported computers the Enablement Package is not offered from Windows Update. We need to manually download it and install it. No big deal the links will be uploaded on the Forum once released or we can download it from Microsoft Update Catalog if we know the KBxxxxx code.

The enablement packages are available here. I've already used it to update to 26H2 on my unsupported system.

Windows 11 Insider Release Preview build 26300.9278 (26H2) - Aug. 27

Windows Insider Blog: Hello Windows Insiders! Today, we are making this year’s annual feature update, Windows 11, version 26H2 (Build 26300.9278), available in the Release Preview Channel for customers to preview ahead of general availability later this calendar year. Windows 11, version 26H2...

www.elevenforum.com

wabbit · 2026-09-06T13:07:04-0400

Back when 23H2 came out, I had two unsupported pcs where I had to manually add the enablement packages. Unfortunately, I no longer have those machines. I kind of miss experimenting with those old machines..

spapakons · 2026-09-06T14:01:20-0400

HeavyHemi said:
The enablement packages are available here. I've already used it to update to 26H2 on my unsupported system.

Windows 11 Insider Release Preview build 26300.9278 (26H2) - Aug. 27

Windows Insider Blog: Hello Windows Insiders! Today, we are making this year’s annual feature update, Windows 11, version 26H2 (Build 26300.9278), available in the Release Preview Channel for customers to preview ahead of general availability later this calendar year. Windows 11, version 26H2...

www.elevenforum.com

Like I said I prefer to wait for any bugs to emerge and hotfixes released before I switch. There is no immediate benefit to switch, no interface changes, no new features not available on 25H2, so why hurry? Just to see 26H2 in About system? Once you switch you cannot go back without reinstalling Windows!

bobkn · 2026-09-06T14:12:04-0400

spapakons said:
Like I said I prefer to wait for any bugs to emerge and hotfixes released before I switch. There is no immediate benefit to switch, no interface changes, no new features not available on 25H2, so why hurry? Just to see 26H2 in About system? Once you switch you cannot go back without reinstalling Windows!

On the other hand, there have reportedly been no core code changes since 24H2, so 26H2 is mostly a label change. The risk in updating should be small.

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