Windows 11 Build 28020.3445.br release svc betaflt prod1.261103-1124
| Windows 11, version 26H1 的版本 | |
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| 操作系统系列 | Windows 11 |
|---|---|
| 内核版本 | 10.0 |
| 内部版本号 | 28020 |
| 修订版本号 | 3445 |
| 体系结构 | AMD64, ARM64 |
| 内部版本实验室 | br_release_svc_betaflt_prod1 |
| 编译日期 | 2026 年 11 月 03 日 |
| 基础版本 | |
| 10.0.28000.7.br_release_flt.260716-1702 | |
| 有效期 | |
| 时间炸弹 | 2027 年 10 月 31 日 （+362 天） |
| 已知 SKU 版本 | |
| Home (N, Single Language, China) SE (N) Pro (N, Single Language, China) Pro Education (N) Pro for Workstations (N) Education (N) Enterprise (Evaluation, G, GN, N, N Evaluation) IoT Enterprise (Subscription) | |
| 关于对话框 | |
Windows 11 build 28020.3445 is an Insider Preview build of Windows 11, version 26H1. It was released to Windows Insiders in the Beta (26H1) channel on 6 November 2026 via the KB5073122 enablement package to build 28000.3445 (KB5132091), along with builds 26320.9876, 26340.9882, 28120.3454 and 29704.
New features and changes
Search
The redesigned Windows Search flyout using the WinUI 3 framework with new inline actions section and better matching for typos and synonyms, initially implemented in build 28120.3181, has been ported to this build and gradually rolled out. These changes can be activated by toggling the "New Windows Search Experience" feature flag, or by enabling the 57739723, 58381341, 59210767, and 59210771 velocity IDs.
File Explorer
The ability to preview PDF and non-HTML files downloaded from the web automatically in the preview pane, initially implemented in build 26340.9233, has been ported to this build and gradually rolled out.
Miscellaneous
The following new features and changes for Magnifier have been ported to this build and gradually rolled out:
- A new "Zoom per display" option for remembering each monitor's own zoom percentage (initially implemented in build 26340.9354).
- Support of viewport locking on the current view on a screen (initially implemented in build 26340.9354).
- The new "Contrast theme" toggle switch for color inversion to the user interface (initially implemented in build 26340.9502).
References to other builds
This build mentions build 28000.3442 (10.0.28000.3442.br_release_svc_betaflt_prod1.261029-1759) in the following UUP metadata file:
SSUCompDB_KB5132121.xml
<CompDB xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" CreatedDate="2026-10-30T13:46:03.4165108Z" Revision="1" SchemaVersion="1.2" Product="Desktop" BuildID="00000000-0000-0000-0000-000000000000" BuildInfo="br_release_flt.28000.7.260716-1702" OSVersion="10.0.28000.7" BuildArch="amd64" Type="BuildUpdate" TargetBuildID="00000000-0000-0000-0000-000000000000" TargetBuildInfo="br_release_svc_betaflt_prod1.28000.3442.261029-1759" TargetOSVersion="10.0.28000.3442" xmlns="http://schemas.microsoft.com/embedded/2004/10/ImageUpdate">
Gallery
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Redesigned search bar on the taskbar
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Redesigned search icon on the taskbar
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Redesigned WinUI 3 search experience flyout
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Ditto, showing search results for "dark mode"
