Microsoft Defender for Endpoint

Microsoft Defender Endpoint Releases

4 September 2026Doc update+255 / −44 lines

In brief

The page now lists July and August 2026 releases for Windows Antivirus, Android, iOS, macOS, and Linux. It also refreshes Windows update-history links and removes the displayed Windows KB links.

What Defender admins need to know

Use the revised table and links to track endpoint versions and related Windows updates.

Summaries are generated from the documentation change itself.

Documentation change

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View on Microsoft Learn

The comparison below shows only the changed extract. Use the full-page view for complete context.

OS	Build	Month released	Details	Learn more
Windows Antivirus	Platform 4.18.26080.3 / Engine 1.1.26080.3	August 2026	- Platform: 4.18.26080.3 - Engine: 1.1.26080.3 - Security intelligence: 1.159.11.0	Release details and updates
Android	1.0.9212.0102	Aug 2026	- Build: 1.0.9212.0102 - Release: Aug 20, 2026	Release details and updates
iOS	1.1.80120102	Aug 2026	- Build: 1.1.80120102 - Release: Aug 20, 2026	Release details and updates
macOS	101.26062.0012	August 2026	- Release version: 20.126062.12.0 - Engine version: 1.1.26060.12000 - Signature version: 1.457.164.0	Release details and updates
Android	1.0.9129.0101	Aug 2026	- Build: 1.0.9129.0101 - Release: Aug 11, 2026	Release details and updates
iOS	1.1.79210103	Aug 2026	- Build: 1.1.79210103 - Release: Aug 04, 2026	Release details and updates
macOS	101.26062.0011	August 2026	- Release version: 20.126062.11.0 - Engine version: 1.1.26040.3000 - Signature version: 1.449.26.0	Release details and updates
Linux	101.~~26052.0011~~26062.0007	~~July~~August 2026	- Release version: 30.126052.~~0011.~~0012.0 - Engine version: 1.1.26040.3001 - Signature version: 1.449.136.0	~~Release details and updates~~Release details and updates
Windows Antivirus	Platform 4.18.26070.9 / Engine 1.1.26070.7	July 2026	- Platform: 4.18.26070.9 - Engine: 1.1.26070.7 - Security intelligence: 1.457.11.0	Release details and updates
macOS	101.26062.0009	July 2026	- Release version: 20.126062.9.0 - Engine version: 1.1.26050.3000 - Signature version: 1.455.265.0	Release details and updates
Android	1.0.9107.0101	July 2026	- Build: 1.0.9107.0101 - Release: July 21, 2026	Release details and updates
iOS	1.1.79080103	July 2026	- Build: 1.1.79080103 - Release: July 20, 2026	Release details and updates
Linux	101.26052.0012	July 2026	- Release version: 30.126052.0012.0 - Engine version: 1.1.26040.3001 - Signature version: 1.449.136.0	Release details and updates
Windows Antivirus	Platform 4.18.26060.3008 / Engine 1.1.26060.3008	June 2026	- Platform: 4.18.26060.3008 - Engine: 1.1.26060.3008 - Security intelligence: 1.455.25.0	Release details and updates
iOS	1.1.78290102	July 2026	- Build: 1.1.78290102 - Release: July 3, 2026	Release details and updates
Android	1.0.9029.0101	June 2026	- Build: 1.0.9029.0101 - Release: June 30, 2026	Release details and updates
macOS	101.26042.0020	June 2026	- Release version: 20.126042.20.0 - Engine version: 1.1.26040.3000 - Signature version: 1.453.151.0	Release details and updates
Linux	101.26042.0011	June 2026	- Release version: 30.126042.0011.0 - Engine version: 1.1.26040.3001 - Signature version: 1.449.136.0	Release details and updates.
Android	1.0.9014.0101	June 2026	- Build: 1.0.9014.0101 - Release: June 19, 2026	Release details and updates
iOS	1.1.78020101	June 2026	- Build: 1.1.78020101 - Release: June 11, 2026	Release details and updates
Android	1.0.9003.0101	June 2026	- Build: 1.0.9003.0101 - Release: June 8, 2026	Release details and updates
iOS	1.1.77280101	June 2026	- Build: 1.1.77280101 - Release: June 1, 2026	Release details and updates
This section covers Microsoft Defender for Endpoint EDR `MsSense.exe` versions. You can also check the file information section in the monthly cumulative rollup updates in the following articles:

Windows | February 2026 | Platform: 10.8821

OS	KB
Windows Server 2025, all editions	~~KB5078740~~KB5078740
Windows Server 2022	~~KB5078766~~KB5078766
Windows Server 2019, Windows 10 1809	~~KB5078752~~KB5078752
Windows 11 26H1	~~KB5077239~~KB5077239
Windows 11 24H2, Windows 11 25H2	~~KB5077241~~KB5077241
Windows 11 23H2	~~KB5078883~~KB5078883
Windows 10 21H2, Windows 10 22H2	~~KB5078885~~KB5078885

Enhancements and features

OS	KB
Windows Server 2025, all editions	~~KB5066835~~KB5066835
Windows Server 2022	~~KB5066782~~KB5066782
Windows Server 2019, Windows 10 1809	~~KB5066586~~KB5066586
Windows 11 24H2, Windows 11 25H2	~~KB5065789~~KB5065789
Windows 11 23H2	~~KB5065790~~KB5065790
Windows 10 21H2, Windows 10 22H2	~~KB5066791~~KB5066791

Enhancements and features

OS	KB
Windows Server 2025, all editions	~~KB5063878~~KB5063878
Windows Server 2022	~~KB5063880~~KB5063880
Windows Server 2019	~~KB5063877~~KB5063877
Windows 11 24H2	~~KB5062660~~KB5062660
Windows 11 23H2	~~KB5062663~~KB5062663
Windows 11 25H2	~~KB5063875~~KB5063875
Windows 10 21H2, Windows 10 22H2	~~KB5063709~~KB5063709

Enhancements and features

OS	KB
Windows 11 24H2	~~KB5058499~~KB5058499
Windows 11 23H2	~~KB5058502~~KB5058502
Windows 10 22/H2	~~KB5058481~~KB5058481

Enhancements and features

OS	KB
Windows 11 24H2	~~KB5041865~~KB5041865
Windows 11 23H2, Windows 11 22H	~~KB5041587~~KB5041587
Windows 11 21H2	~~KB5043067~~KB5043067
Windows 10 22H2	~~KB5041582~~KB5041582
Windows Server 2022 and later	~~KB5042881~~KB5042881
Windows Server 2019	~~KB5043050~~KB5043050
Windows Server 2016, Windows Server 2012 R2	~~KB5005292~~KB5005292

Enhancements and features

macOS releases

Defender for Endpoint supports macOS version ~~15.0.1~~14 (Sonoma) or newer. macOS 11 (Big Sur), 12 (Monterey), and ~~12 (Monterey)~~13 (Ventura) are no longer supported.

To share feedback, open Defender for Endpoint on macOS and go to Help > Send feedback.

For known issues, see macOS known issues.

macOS | August-2026 | 101.26062.0012

Versions

Release version	Engine version	Signature version
20.126062.12.0	1.1.26060.12000	1.457.164.0

Enhancements and features

Feature area	Update summary
General	Bug and performance fixes

macOS | August-2026 | 101.26062.0011

Versions

Release version	Engine version	Signature version
20.126062.11.0	1.1.26040.3000	1.449.26.0

Enhancements and features

Feature area	Update summary
Security for AI	Expanded local AI agent discovery (Preview) on macOS to include visibility into Model Context Protocol (MCP) server configurations.
General	Performance improvements and bug fixes.

macOS | July-2026 | 101.26062.0009

Versions

Release version	Engine version	Signature version
20.126062.9.0	1.1.26050.3000	1.455.265.0

Enhancements and features

Feature area	Update summary
General	Bug and performance fixes
General	Extend network diagnostics with `mdatp health --details network_configuration`

macOS | July-2026 | 101.26052.0016

Versions

For detailed information on Microsoft security updates, see the Microsoft Security Update Guide.

[!INCLUDE Linux 101.26012.0007 known issue

[!INCLUDE Linux 101.26012.0007 known issue]

Linux | JulyAug 2026 | 101.26052.001126062.0007

Release details

Release version	Engine version	Signature version
30.126052.~~0011.~~0012.0	1.1.26040.3001	1.449.136.0

Enhancements and features

Feature area	Update summary
Bug fix	Resolved an issue that could cause on-demand antivirus scans (quick, full, and custom) to take longer than expected or appear unresponsive in certain environments. Protection capabilities remained unaffected while scans were in progress.
Security	Engine signature verification is now enabled by default for new installations and upgrades. Defender for Endpoint verifies the engine's digital signature before loading it and doesn't load engines that fail verification. Legacy engine signature verification settings are deprecated.
Visibility	Resolved an issue where the `mdatp health` status could incorrectly show a device as healthy after it was offboarded.
General	Reliability and quality improvements.

Linux | July 2026 | 101.26052.0012

Release details

Release version	Engine version	Signature version
30.126052.0012.0	1.1.26040.3001	1.449.136.0

Enhancements and features

|Visibility |Improved antivirus enforcement visibility.
The mdatp health command now includes a new antivirus_enforcement_level field that shows whether antivirus is running in real_time, passive, on_demand, or audit mode. This helps administrators quickly verify device protection status without additional checks.| | Visibility |More accurate and informative connectivity tests.
Connectivity tests now validate the same update paths used for offline security intelligence updates on supported x64 and ARM64 platforms, and surface inline diagnostics (failure type, affected feature, proxy detection status) when a check fails. Fixed URL validation mismatches that could cause false failures.| |Bug fix | FIPS-enabled RHEL 8/9 devices that failed to update to 101.26042.x will now install successfully. | |Bug fix | Fixed an issue where WordPress Core installations were not reflected in the Linux device software inventory. |

Linux | June 2026 | 101.26042.0011

See the full list of Android UX improvements.

Android | Aug 2026 | Platform: 1.0.9212.0102

Release details

Platform version	Release Date
1.0.9212.0102	Aug 20, 2026

Enhancements and features

Feature Area	Update Summary
Feature Enhancements	The Malware Protection card now shows the most recent scan time, making it easier to verify device protection status at a glance..

Android | Aug 2026 | Platform: 1.0.9129.0101

Release details

Platform version	Release Date
1.0.9129.0101	Aug 11, 2026

Enhancements and features

Feature Area	Update Summary
General	Performance improvements and general bug fixes.

Android | July 2026 | Platform: 1.0.9107.0101

Release details

Platform version	Release Date
1.0.9107.0101	July 21, 2026

Enhancements and features

Feature Area	Update Summary
General	Performance improvements and general bug fixes.

Android | June 2026 | Platform: 1.0.9029.0101

Release details

For the latest UX improvements, see iOS UX improvements.

iOS | Aug 2026 | Platform Version: 1.1.80120102

Release details

Platform version	Release Date
1.1.80120102	Aug 20, 2026

Enhancements and features

Feature Area	Update Summary
New Features & Enhancements	Introduced Dynamic Preview Rings feature to help organizations safely evaluate new Microsoft Defender for Endpoint mobile capabilities with a targeted set of users before expanding deployment across their environment. You can read more here
Security Updates	We have retired the in-app OS Update recommendations in favor of enforcement via MAM / MDM policies

iOS | Aug 2026 | Platform Version: 1.1.79210103

Release details

Platform version	Release Date
1.1.79210103	Aug 4, 2026

Enhancements and features

Feature Area	Update Summary
Improvements	Performance improvements and general bug fixes.

iOS | July 2026 | Platform Version: 1.1.79080103

Release details

Platform version	Release Date
1.1.79080103	July 20, 2026

Enhancements and features

Feature Area	Update Summary
Improvements	Performance improvements and general bug fixes.

iOS | July 2026 | Platform Version: 1.1.78290102

Release details

For more information about Microsoft Defender Antivirus updates, see Microsoft Defender Antivirus security intelligence product updates and support.

Windows Antivirus | August 2026 | Platform 4.18.26080.3 | Engine 1.1.26080.3

Release details

Component	Version	Date
Platform	4.18.26080.3	September 1, 2026
Engine	1.1.26080.3	September 1, 2026
Security intelligence¹	1.159.11.0	September 1, 2026
Support phase	Security and Critical Updates	-

¹The security intelligence version listed here is relevant to the listed engine release. Newer versions of security intelligence are released regularly. For more information, see Security intelligence updates for Microsoft Defender Antivirus and other Microsoft anti-malware.

Enhancements and features

Added health monitoring for environments where Cisco Umbrella affects Network Protection.
Hardened Defender Antivirus against unauthorized network authentication credential exposure.
Fixed BitLocker encryption-state detection when encrypted volumes have no drive letter.
Fixed platform updates that could remain stuck when the staging folder for the update has been purged.
Resolved an issue with increased disk I/O due to cleanup failing when the shared signature root location contained whitespace.
Fixed path exclusions for AMSI scans when local memory-scan exceptions are enabled.
Fixed an issue with the ASR warn unblock option that didn't prompt users for admin approval.

Windows Antivirus | July 2026 | Platform 4.18.26070.9 | Engine 1.1.26070.7

Release details

Component	Version	Date
Platform	4.18.26070.9	August 5, 2026
Engine	1.1.26070.7	August 5, 2026
Security intelligence¹	1.457.11.0	August 5, 2026
Support phase	Security and Critical Updates	-

Enhancements and features

Improved archive scanning performance to scale service memory limits dynamically based on the number of logical cores.
Improved cache builds on devices with Lunar Lake CPUs by using TrustedImageIdentifier.
Fixed an issue where files that were already excluded were still submitted to the cloud protection service for rescanning, only to return the same result.
Fixed HTTPS connection stalls under Network Protection Block mode caused by dropped TCP FIN segments.

Windows Antivirus | June 2026 | Platform 4.18.26060.3008 | Engine 1.1.26060.3008

Release details

Fixed NisSrv self-healing when the service crosses memory thresholds.
Improved encrypted PDF scanning.
Fixed Get-MpPerformanceReport JSON parsing failures.

@@ -7,7 +7,7 @@ author: lwainstein ms.author: lwainstein ms.reviewer: noamhadash, pahuijbr, yongrhee ms.localizationpriority: medium-ms.date: 07/03/2026+ms.date: 09/01/2026 ai-usage: ai-assisted appliesto: Microsoft Defender for Endpoint Plan 1, Microsoft Defender for Endpoint Plan 2, Microsoft Defender XDR ---@@ -29,13 +29,25 @@ This table includes supported releases for all supported platforms in the past s  |OS  |Build |Month released|Details  |Learn more  | |---------|---------|---------|---------|---------|-|Linux  |101.26052.0011  |July 2026 |- Release version: 30.126052.0011.0<br>- Engine version: 1.1.26040.3001<br>- Signature version: 1.449.136.0 |[Release details and updates](#linux--july-2026--101260520011) |+|Windows Antivirus |Platform 4.18.26080.3 / Engine 1.1.26080.3|August 2026|- Platform: 4.18.26080.3<br>- Engine: 1.1.26080.3<br>- Security intelligence: 1.159.11.0|[Release details and updates](#windows-antivirus--august-2026--platform-418260803--engine-11260803)|+|Android |1.0.9212.0102|Aug 2026|- Build: 1.0.9212.0102<br>- Release: Aug 20, 2026|[Release details and updates](#android--aug-2026--platform-1092120102)|+|iOS |1.1.80120102|Aug 2026|- Build: 1.1.80120102<br>- Release: Aug 20, 2026|[Release details and updates](#ios--aug-2026--platform-version-1180120102)|+|macOS |101.26062.0012  |August 2026 |- Release version: 20.126062.12.0<br>- Engine version: 1.1.26060.12000<br>- Signature version: 1.457.164.0 |[Release details and updates](#macos--august-2026--101260620012) |+|Android |1.0.9129.0101|Aug 2026|- Build: 1.0.9129.0101<br>- Release: Aug 11, 2026|[Release details and updates](#android--aug-2026--platform-1091290101)|+|iOS |1.1.79210103|Aug 2026|- Build: 1.1.79210103<br>- Release: Aug 04, 2026|[Release details and updates](#ios--aug-2026--platform-version-1179210103)|+|macOS |101.26062.0011  |August 2026 |- Release version: 20.126062.11.0<br>- Engine version: 1.1.26040.3000<br>- Signature version: 1.449.26.0 |[Release details and updates](#macos--august-2026--101260620011) |+|Linux  |101.26062.0007  |August 2026 |- Release version: 30.126052.0012.0<br>- Engine version: 1.1.26040.3001<br>- Signature version: 1.449.136.0 |[Release details and updates](#linux--aug-2026--101260620007) |+|Windows Antivirus |Platform 4.18.26070.9 / Engine 1.1.26070.7|July 2026|- Platform: 4.18.26070.9<br>- Engine: 1.1.26070.7<br>- Security intelligence: 1.457.11.0|[Release details and updates](#windows-antivirus--july-2026--platform-418260709--engine-11260707)|+|macOS |101.26062.0009  |July 2026 |- Release version: 20.126062.9.0<br>- Engine version: 1.1.26050.3000<br>- Signature version: 1.455.265.0 |[Release details and updates](#macos--july-2026--101260620009) |+|Android |1.0.9107.0101|July 2026|- Build: 1.0.9107.0101<br>- Release: July 21, 2026|[Release details and updates](#android--july-2026--platform-1091070101)|+|iOS |1.1.79080103|July 2026|- Build: 1.1.79080103<br>- Release: July 20, 2026|[Release details and updates](#ios--july-2026--platform-version-1179080103)|+|Linux  |101.26052.0012  |July 2026 |- Release version: 30.126052.0012.0<br>- Engine version: 1.1.26040.3001<br>- Signature version: 1.449.136.0 |[Release details and updates](#linux--july-2026--101260520012) | |Windows Antivirus |Platform 4.18.26060.3008 / Engine 1.1.26060.3008 |June 2026 |- Platform: 4.18.26060.3008<br>- Engine: 1.1.26060.3008<br>- Security intelligence: 1.455.25.0 |[Release details and updates](#windows-antivirus--june-2026--platform-418260603008--engine-11260603008) | |iOS |1.1.78290102|July 2026|- Build: 1.1.78290102<br>- Release: July 3, 2026|[Release details and updates](#ios--july-2026--platform-version-1178290102)|-|Android |1.0.9029.0101|June 2026|- Build: 1.0.9029.0101<br>- Release: June 30, 2026|[Release details and updates](#android--june-2026--platform-1090290101)| +|Android |1.0.9029.0101|June 2026|- Build: 1.0.9029.0101<br>- Release: June 30, 2026|[Release details and updates](#android--june-2026--platform-1090290101)| |macOS |101.26042.0020  |June 2026 |- Release version: 20.126042.20.0<br>- Engine version: 1.1.26040.3000<br>- Signature version: 1.453.151.0 |[Release details and updates](#macos--june-2026--101260420020) | |Linux  |101.26042.0011  |June 2026 |- Release version: 30.126042.0011.0<br>- Engine version: 1.1.26040.3001<br>- Signature version: 1.449.136.0 |[Release details and updates](#linux--june-2026--101260420011). |-|Android |1.0.9014.0101|June 2026|- Build: 1.0.9014.0101<br>- Release: June 19, 2026|[Release details and updates](#android--june-2026--platform-1090140101)| +|Android |1.0.9014.0101|June 2026|- Build: 1.0.9014.0101<br>- Release: June 19, 2026|[Release details and updates](#android--june-2026--platform-1090140101)| |iOS |1.1.78020101|June 2026|- Build: 1.1.78020101<br>- Release: June 11, 2026|[Release details and updates](#ios--june-2026--platform-version-1178020101)| |Android |1.0.9003.0101|June 2026|- Build: 1.0.9003.0101<br>- Release: June 8, 2026|[Release details and updates](#android--june-2026--platform-1090030101)| |iOS |1.1.77280101|June 2026|- Build: 1.1.77280101<br>- Release: June 1, 2026|[Release details and updates](#ios--june-2026--platform-version-1177280101)|@@ -100,10 +112,10 @@ This table includes supported releases for all supported platforms in the past s This section covers Microsoft Defender for Endpoint EDR `MsSense.exe` versions. You can also check the file information section in the monthly cumulative rollup updates in the following articles:  - [Windows 11 release information](/windows/release-health/windows11-release-information)-- [Windows 10 updates](https://support.microsoft.com/topic/windows-10-update-history-8127c2c6-6edf-4fdf-8b9f-0f7be1ef3562)-- [Windows Server 2022 updates](https://support.microsoft.com/topic/windows-server-2022-update-history-e1caa597-00c5-4ab9-9f3e-8212fe80b2ee)-- [Windows Server 2019 updates](https://support.microsoft.com/topic/windows-10-and-windows-server-2019-update-history-725fc2e1-4443-6831-a5ca-51ff5cbcb059)-- [Windows Server 2025 updates](https://support.microsoft.com/topic/windows-server-2025-update-history-10f58da7-e57b-4a9d-9c16-9f1dcd72d7d7)+- [Windows 10 updates](https://support.microsoft.com/servicing/os/windows-10/2022/09/windows-10-update-history)+- [Windows Server 2022 updates](https://support.microsoft.com/servicing/os/windows-server/2021/07/windows-server-2022-update-history)+- [Windows Server 2019 updates](https://support.microsoft.com/servicing/os/windows-10/2020/11/windows-10-and-windows-server-2019-update-history)+- [Windows Server 2025 updates](https://support.microsoft.com/servicing/os/windows-server/2024/10/windows-server-2025-update-history)  ### Windows | February 2026 | Platform: 10.8821 @@ -111,13 +123,13 @@ This section covers Microsoft Defender for Endpoint EDR `MsSense.exe` versions.  | OS | KB | | -------- | -------- |-| Windows Server 2025, all editions | [KB5078740](https://support.microsoft.com/help/5078740) |-| Windows Server 2022 | [KB5078766](https://support.microsoft.com/help/5078766) |-| Windows Server 2019, Windows 10 1809 | [KB5078752](https://support.microsoft.com/help/5078752) |-| Windows 11 26H1 | [KB5077239](https://support.microsoft.com/help/5077239) |-| Windows 11 24H2, Windows 11 25H2 | [KB5077241](https://support.microsoft.com/help/5077241) |-| Windows 11 23H2 | [KB5078883](https://support.microsoft.com/help/5078883) |-| Windows 10 21H2, Windows 10 22H2 | [KB5078885](https://support.microsoft.com/help/5078885) |+| Windows Server 2025, all editions | [KB5078740](https://support.microsoft.com/servicing/os/windows-server/2026/03/march-10-2026-kb5078740-os-build-26100-32522) |+| Windows Server 2022 | [KB5078766](https://support.microsoft.com/servicing/os/windows-server/2026/03/march-10-2026-kb5078766-os-build-20348-4893) |+| Windows Server 2019, Windows 10 1809 | [KB5078752](https://support.microsoft.com/servicing/os/windows-10/2026/03/march-10-2026-kb5078752-os-build-17763-8511) |+| Windows 11 26H1 | [KB5077239](https://support.microsoft.com/servicing/os/windows-11/2026/02/february-24-2026-kb5077239-os-build-28000-1643-preview) |+| Windows 11 24H2, Windows 11 25H2 | [KB5077241](https://support.microsoft.com/servicing/os/windows-11/2026/02/february-24-2026-kb5077241-os-builds-26200-7922-and-26100-7922-preview) |+| Windows 11 23H2 | [KB5078883](https://support.microsoft.com/servicing/os/windows-11/2026/03/march-10-2026-kb5078883-os-build-22631-6783) |+| Windows 10 21H2, Windows 10 22H2 | [KB5078885](https://support.microsoft.com/topic/march-10-2026-kb5078885-os-builds-19045-7058-and-19044-7058-5738282d-0b7f-426e-a42b-bd7698ab6dbb) |  #### Enhancements and features @@ -133,12 +145,12 @@ This section covers Microsoft Defender for Endpoint EDR `MsSense.exe` versions.  | OS | KB | | -------- | -------- |-| Windows Server 2025, all editions | [KB5066835](https://support.microsoft.com/help/5066835) |-| Windows Server 2022 | [KB5066782](https://support.microsoft.com/help/5066782) |-| Windows Server 2019, Windows 10 1809 | [KB5066586](https://support.microsoft.com/help/5066586) |-| Windows 11 24H2, Windows 11 25H2 | [KB5065789](https://support.microsoft.com/help/5065789) |-| Windows 11 23H2 | [KB5065790](https://support.microsoft.com/help/5065790) |-| Windows 10 21H2, Windows 10 22H2 | [KB5066791](https://support.microsoft.com/help/5066791) |+| Windows Server 2025, all editions | [KB5066835](https://support.microsoft.com/servicing/os/windows-11/2025/10/october-14-2025-kb5066835-os-builds-26200-6899-and-26100-6899) |+| Windows Server 2022 | [KB5066782](https://support.microsoft.com/topic/october-14-2025-kb5066782-os-build-20348-4294-f4af3c9e-7a60-4d17-a964-cfe1f1dd15f6) |+| Windows Server 2019, Windows 10 1809 | [KB5066586](https://support.microsoft.com/servicing/os/windows-10/2025/10/october-14-2025-kb5066586-os-build-17763-7919) |+| Windows 11 24H2, Windows 11 25H2 | [KB5065789](https://support.microsoft.com/servicing/os/windows-11/2025/09/september-29-2025-kb5065789-os-builds-26200-6725-and-26100-6725-preview) |+| Windows 11 23H2 | [KB5065790](https://support.microsoft.com/servicing/os/windows-11/2025/09/september-23-2025-kb5065790-os-build-22631-5984-preview) |+| Windows 10 21H2, Windows 10 22H2 | [KB5066791](https://support.microsoft.com/servicing/os/windows-10/2025/10/october-14-2025-kb5066791-os-builds-19044-6456-and-19045-6456) |  #### Enhancements and features @@ -155,13 +167,13 @@ This section covers Microsoft Defender for Endpoint EDR `MsSense.exe` versions.  | OS | KB | | -------- | -------- |-| Windows Server 2025, all editions | [KB5063878](https://support.microsoft.com/help/5063878) |-| Windows Server 2022 | [KB5063880](https://support.microsoft.com/help/5063880) |-| Windows Server 2019 | [KB5063877](https://support.microsoft.com/help/5063877) |-| Windows 11 24H2 | [KB5062660](https://support.microsoft.com/help/5062660) |-| Windows 11 23H2 | [KB5062663](https://support.microsoft.com/help/5062663) |-| Windows 11 25H2 | [KB5063875](https://support.microsoft.com/help/5063875) |-| Windows 10 21H2, Windows 10 22H2 | [KB5063709](https://support.microsoft.com/help/5063709) |+| Windows Server 2025, all editions | [KB5063878](https://support.microsoft.com/topic/august-12-2025-kb5063878-os-build-26100-4946-e4b87262-75c8-4fef-9df7-4a18099ee294) |+| Windows Server 2022 | [KB5063880](https://support.microsoft.com/servicing/os/windows-server/2025/08/august-12-2025-kb5063880-os-build-20348-4052) |+| Windows Server 2019 | [KB5063877](https://support.microsoft.com/servicing/os/windows-10/2025/08/august-12-2025-kb5063877-os-build-17763-7678) |+| Windows 11 24H2 | [KB5062660](https://support.microsoft.com/servicing/os/windows-11/2025/07/july-22-2025-kb5062660-os-build-26100-4770-preview) |+| Windows 11 23H2 | [KB5062663](https://support.microsoft.com/servicing/os/windows-11/2025/07/july-22-2025-kb5062663-os-builds-22631-5699-preview) |+| Windows 11 25H2 | [KB5063875](https://support.microsoft.com/servicing/os/windows-11/2025/08/august-12-2025-kb5063875-os-builds-22621-5768-and-22631-5768) |+| Windows 10 21H2, Windows 10 22H2 | [KB5063709](https://support.microsoft.com/servicing/os/windows-10/2025/08/august-12-2025-kb5063709-os-builds-19044-6216-and-19045-6216) |  #### Enhancements and features @@ -176,9 +188,9 @@ This section covers Microsoft Defender for Endpoint EDR `MsSense.exe` versions.  | OS | KB | | -------- | -------- |-| Windows 11 24H2 | [KB5058499](https://support.microsoft.com/topic/may-28-2025-kb5058499-os-build-26100-4202-preview-d4c2f1ee-8138-4038-b705-546945076f92) |-| Windows 11 23H2 | [KB5058502](https://support.microsoft.com/topic/may-27-2025-kb5058502-os-22621-5413-and-22631-5413-preview-6291789c-1eea-4227-9740-a701af6de688) |-| Windows 10 22/H2 | [KB5058481](https://support.microsoft.com/topic/may-28-2025-kb5058481-os-build-19045-5917-preview-7698d6e7-dd65-494d-b523-aa4c6aa913a2) |+| Windows 11 24H2 | [KB5058499](https://support.microsoft.com/servicing/os/windows-11/2025/05/may-28-2025-kb5058499-os-build-26100-4202-preview) |+| Windows 11 23H2 | [KB5058502](https://support.microsoft.com/servicing/os/windows-11/2025/05/may-27-2025-kb5058502-os-builds-22621-5413-and-22631-5413-preview) |+| Windows 10 22/H2 | [KB5058481](https://support.microsoft.com/servicing/os/windows-10/2025/05/may-28-2025-kb5058481-os-build-19045-5917-preview) |  #### Enhancements and features @@ -196,13 +208,13 @@ This section covers Microsoft Defender for Endpoint EDR `MsSense.exe` versions.  | OS | KB | | -------- | -------- |-| Windows 11 24H2 | [KB5041865](https://support.microsoft.com/topic/august-27-2024-kb5041865-os-build-26100-1591-preview-5d299921-2b27-4fe0-b414-c2336371b552) |-| Windows 11 23H2, Windows 11 22H | [KB5041587](https://support.microsoft.com/topic/august-27-2024-kb5041587-os-builds-22621-4112-and-22631-4112-preview-9706ea0e-6f72-430e-b08a-878963dafe08) |-| Windows 11 21H2 | [KB5043067](https://support.microsoft.com/topic/september-10-2024-kb5043067-os-build-22000-3197-62287850-4f0d-4e4a-9fe8-b026bb1be994) |-| Windows 10 22H2 | [KB5041582](https://support.microsoft.com/topic/august-29-2024-kb5041582-os-build-19045-4842-preview-f4c4d191-5457-475c-80ac-e1d43cf9c941) |-| Windows Server 2022 and later | [KB5042881](https://support.microsoft.com/topic/september-10-2024-kb5042881-os-build-20348-2700-5b548143-9613-4e5a-9454-8ed9be8b2bd2) |-| Windows Server 2019 | [KB5043050](https://support.microsoft.com/topic/september-10-2024-kb5043050-os-build-17763-6293-66e9809a-1838-4474-a6a7-90d64f042f00) |-| Windows Server 2016, Windows Server 2012 R2 | [KB5005292](https://support.microsoft.com/topic/microsoft-defender-for-endpoint-update-for-edr-sensor-f8f69773-f17f-420f-91f4-a8e5167284ac) |+| Windows 11 24H2 | [KB5041865](https://support.microsoft.com/servicing/os/windows-11/2024/08/august-27-2024-kb5041865-os-build-26100-1591-preview) |+| Windows 11 23H2, Windows 11 22H | [KB5041587](https://support.microsoft.com/servicing/os/windows-11/2024/08/august-27-2024-kb5041587-os-builds-22621-4112-and-22631-4112-preview) |+| Windows 11 21H2 | [KB5043067](https://support.microsoft.com/servicing/os/windows-11/2024/09/september-10-2024-kb5043067-os-build-22000-3197) |+| Windows 10 22H2 | [KB5041582](https://support.microsoft.com/servicing/os/windows-10/2024/08/august-29-2024-kb5041582-os-build-19045-4842-preview) |+| Windows Server 2022 and later | [KB5042881](https://support.microsoft.com/servicing/os/windows-server/2024/09/september-10-2024-kb5042881-os-build-20348-2700) |+| Windows Server 2019 | [KB5043050](https://support.microsoft.com/servicing/os/windows-10/2024/09/september-10-2024-kb5043050-os-build-17763-6293-expired) |+| Windows Server 2016, Windows Server 2012 R2 | [KB5005292](https://support.microsoft.com/servicing/Management-Tools/microsoft-defender/update/microsoft-defender-for-endpoint-update-for-edr-sensor) |  #### Enhancements and features @@ -212,7 +224,7 @@ This section covers Microsoft Defender for Endpoint EDR `MsSense.exe` versions.  ## macOS releases -Defender for Endpoint supports macOS version 15.0.1 or newer. macOS 11 (Big Sur) and 12 (Monterey) are no longer supported.+Defender for Endpoint supports macOS version 14 (Sonoma) or newer. macOS 11 (Big Sur), 12 (Monterey), and 13 (Ventura) are no longer supported.  To share feedback, open Defender for Endpoint on macOS and go to **Help > Send feedback**. @@ -220,6 +232,50 @@ To get latest features, configure your device for the Beta channel (formerly Ins  For known issues, see [macOS known issues](#macos-known-issues). +### macOS | August-2026 | 101.26062.0012++#### Versions++| Release version | Engine version | Signature version |+|-----------------|----------------|-------------------|+| 20.126062.12.0  | 1.1.26060.12000 | 1.457.164.0       |++#### Enhancements and features++| Feature area | Update summary |+|--------------|----------------|+| General      | Bug and performance fixes |++### macOS | August-2026 | 101.26062.0011++#### Versions++| Release version | Engine version | Signature version |+|-----------------|----------------|-------------------|+| 20.126062.11.0  | 1.1.26040.3000 | 1.449.26.0        |++#### Enhancements and features++| Feature area | Update summary |+|--------------|----------------|+| Security for AI | Expanded [local AI agent discovery (Preview)](local-agent-discovery-overview.md) on macOS to include visibility into Model Context Protocol (MCP) server configurations. |+| General      | Performance improvements and bug fixes. |++### macOS | July-2026 | 101.26062.0009++#### Versions++| Release version | Engine version | Signature version |+|-----------------|----------------|-------------------|+| 20.126062.9.0   | 1.1.26050.3000 | 1.455.265.0       |++#### Enhancements and features++| Feature area | Update summary |+|--------------|----------------|+| General      | Bug and performance fixes |+| General      | Extend network diagnostics with `mdatp health --details network_configuration` |+ ### macOS | July-2026 | 101.26052.0016  #### Versions@@ -476,6 +532,16 @@ Defender for Endpoint on Linux is updated regularly. While security fixes are in  For detailed information on Microsoft security updates, see the [Microsoft Security Update Guide](https://msrc.microsoft.com/update-guide). +> [!NOTE]+>+> Each Defender for Endpoint on Linux version expires automatically after nine months. Expired versions continue to receive security intelligence updates, but you should install the latest version to receive all available fixes and enhancements.+>+> To check your client expiration date, run the following command:+>+> `mdatp health --field product_expiration`+>+> The previous RHEL 6 exception for version `101.23082.0011` was time-bound through June 30, 2024 and is no longer active.+  > [!IMPORTANT] >@@ -491,13 +557,30 @@ For detailed information on Microsoft security updates, see the [Microsoft Secur  [!INCLUDE [Linux 101.26012.0007 known issue](includes/linux-build-issue.md)] -### Linux | July 2026 | 101.26052.0011+### Linux | Aug 2026 | 101.26062.0007  #### Release details  | Release version | Engine version | Signature version | | -------- | -------- |-------- |-|30.126052.0011.0 |1.1.26040.3001 |1.449.136.0 |+|30.126052.0012.0 |1.1.26040.3001 |1.449.136.0 |++#### Enhancements and features++|Feature area | Update summary |+|--------------|---------------|+|Bug fix | Resolved an issue that could cause on-demand antivirus scans (quick, full, and custom) to take longer than expected or appear unresponsive in certain environments. Protection capabilities remained unaffected while scans were in progress. |+|Security | Engine signature verification is now enabled by default for new installations and upgrades. Defender for Endpoint verifies the engine's digital signature before loading it and doesn't load engines that fail verification. Legacy engine signature verification settings are deprecated. |+|Visibility | Resolved an issue where the `mdatp health` status could incorrectly show a device as healthy after it was offboarded. |+|General | Reliability and quality improvements. |++### Linux | July 2026 | 101.26052.0012++#### Release details++| Release version | Engine version | Signature version |+| -------- | -------- |-------- |+|30.126052.0012.0 |1.1.26040.3001 |1.449.136.0 |  #### Enhancements and features @@ -506,6 +589,7 @@ For detailed information on Microsoft security updates, see the [Microsoft Secur |Visibility |**Improved antivirus enforcement visibility.**<br> The `mdatp health` command now includes a new `antivirus_enforcement_level` field that shows whether antivirus is running in `real_time`, `passive`, `on_demand`, or `audit` mode. This helps administrators quickly verify device protection status without additional checks.| | Visibility |**More accurate and informative connectivity tests.**<br> Connectivity tests now validate the same update paths used for offline security intelligence updates on supported x64 and ARM64 platforms, and surface inline diagnostics (failure type, affected feature, proxy detection status) when a check fails. Fixed URL validation mismatches that could cause false failures.| |Bug fix |  FIPS-enabled RHEL 8/9 devices that failed to update to 101.26042.x will now install successfully. |+|Bug fix |  Fixed an issue where WordPress Core installations were not reflected in the Linux device software inventory. |  ### Linux | June 2026 | 101.26042.0011 @@ -725,6 +809,48 @@ Fixed an issue in the January 2026 release, where real-time scanning of the /dev  See the full list of [Android UX improvements](android-new-ux.md). +### Android | Aug 2026 | Platform: 1.0.9212.0102++#### Release details++| Platform version| Release Date |+| -------- | -------- |+|1.0.9212.0102|Aug 20, 2026|++#### Enhancements and features++|__Feature Area__| __Update Summary__|+| -------- | -------- |+|Feature Enhancements|The Malware Protection card now shows the most recent scan time, making it easier to verify device protection status at a glance.. |++### Android | Aug 2026 | Platform: 1.0.9129.0101++#### Release details++| Platform version| Release Date |+| -------- | -------- |+|1.0.9129.0101|Aug 11, 2026|++#### Enhancements and features++|__Feature Area__| __Update Summary__|+| -------- | -------- |+|General|Performance improvements and general bug fixes. |++### Android | July 2026 | Platform: 1.0.9107.0101++#### Release details++| Platform version| Release Date |+| -------- | -------- |+|1.0.9107.0101|July 21, 2026|++#### Enhancements and features++|__Feature Area__| __Update Summary__|+| -------- | -------- |+|General|Performance improvements and general bug fixes. |+ ### Android | June 2026 | Platform: 1.0.9029.0101  #### Release details@@ -935,6 +1061,49 @@ See the full list of [Android UX improvements](android-new-ux.md).  For the latest UX improvements, see [iOS UX improvements](ios-new-ux.md). +### iOS | Aug 2026 | Platform Version: 1.1.80120102++#### Release details++| Platform version | Release Date |+| -------- | -------- |+| 1.1.80120102 | Aug 20, 2026 |++#### Enhancements and features++|**Feature Area**| **Update Summary**|+| -------- | -------- |+| New Features & Enhancements | Introduced Dynamic Preview Rings feature to help organizations safely evaluate new Microsoft Defender for Endpoint mobile capabilities with a targeted set of users before expanding deployment across their environment. You can read more [here](mobile-dynamic-preview-rings-configure.md) |+| Security Updates | We have retired the in-app OS Update recommendations in favor of enforcement via MAM / MDM policies |++### iOS | Aug 2026 | Platform Version: 1.1.79210103++#### Release details++| Platform version | Release Date |+| -------- | -------- |+| 1.1.79210103| Aug 4, 2026 |++#### Enhancements and features++|**Feature Area**| **Update Summary**|+| -------- | -------- |+|Improvements|Performance improvements and general bug fixes.|++### iOS | July 2026 | Platform Version: 1.1.79080103++#### Release details++| Platform version | Release Date |+| -------- | -------- |+| 1.1.79080103| July 20, 2026 |++#### Enhancements and features++|__Feature Area__| __Update Summary__|+| -------- | -------- |+|Improvements|Performance improvements and general bug fixes.|+ ### iOS | July 2026 | Platform Version: 1.1.78290102  #### Release details@@ -1071,6 +1240,51 @@ For the latest UX improvements, see [iOS UX improvements](ios-new-ux.md).  For more information about Microsoft Defender Antivirus updates, see [Microsoft Defender Antivirus security intelligence product updates and support](microsoft-defender-antivirus-updates.md). +### Windows Antivirus | August 2026 | Platform 4.18.26080.3 | Engine 1.1.26080.3++#### Release details++| Component | Version | Date |+| -------- | -------- | -------- |+| Platform | 4.18.26080.3 | September 1, 2026 |+| Engine | 1.1.26080.3 | September 1, 2026 |+| Security intelligence<sup>1</sup> | 1.159.11.0 | September 1, 2026 |+| Support phase | Security and Critical Updates | - |++<sup>1</sup>The security intelligence version listed here is relevant to the listed engine release. Newer versions of security intelligence are released regularly. For more information, see+[Security intelligence updates for Microsoft Defender Antivirus and other Microsoft anti-malware](https://www.microsoft.com/wdsi/defenderupdates).++#### Enhancements and features++- Added health monitoring for environments where Cisco Umbrella affects Network Protection.+- Hardened Defender Antivirus against unauthorized network authentication credential exposure.+- Fixed BitLocker encryption-state detection when encrypted volumes have no drive letter.+- Fixed platform updates that could remain stuck when the staging folder for the update has been purged.+- Resolved an issue with increased disk I/O due to cleanup failing when the shared signature root location contained whitespace.+- Fixed path exclusions for AMSI scans when local memory-scan exceptions are enabled.+- Fixed an issue with the ASR warn unblock option that didn't prompt users for [admin approval](attack-surface-reduction-rules-overview.md#modes-for-asr-rules).++### Windows Antivirus | July 2026 | Platform 4.18.26070.9 | Engine 1.1.26070.7++#### Release details++| Component | Version | Date |+| -------- | -------- | -------- |+| Platform | 4.18.26070.9 | August 5, 2026 |+| Engine | 1.1.26070.7 | August 5, 2026 |+| Security intelligence<sup>1</sup> | 1.457.11.0 | August 5, 2026 |+| Support phase | Security and Critical Updates | - |++<sup>1</sup>The security intelligence version listed here is relevant to the listed engine release. Newer versions of security intelligence are released regularly. For more information, see+[Security intelligence updates for Microsoft Defender Antivirus and other Microsoft anti-malware](https://www.microsoft.com/wdsi/defenderupdates).++#### Enhancements and features++- Improved archive scanning performance to scale service memory limits dynamically based on the number of logical cores.+- Improved cache builds on devices with Lunar Lake CPUs by using `TrustedImageIdentifier`.+- Fixed an issue where files that were already excluded were still submitted to the cloud protection service for rescanning, only to return the same result.+- Fixed HTTPS connection stalls under Network Protection Block mode caused by dropped TCP FIN segments.+ ### Windows Antivirus | June 2026 | Platform 4.18.26060.3008 | Engine 1.1.26060.3008  #### Release details@@ -1165,6 +1379,3 @@ For more information about Microsoft Defender Antivirus updates, see [Microsoft - Fixed NisSrv self-healing when the service crosses memory thresholds. - Improved encrypted PDF scanning. - Fixed `Get-MpPerformanceReport` JSON parsing failures.---