Office and Windows Updates
Track the latest Microsoft 365 Apps, Windows client and Windows Server releases with version numbers, builds, and key dates
This site is not affiliated with Microsoft Corporation. Information is sourced from official Microsoft documentation and may include personal considerations. Refer to Microsoft's official documentation for authoritative information.
About This Site
Purpose, scope, and context
This site tracks Microsoft 365 Apps (formerly Office 365 ProPlus) releases across the main update channels, as well as Windows 10 and Windows 11 operating system releases. It provides a consolidated view of version numbers, builds, and key lifecycle dates so you can quickly assess currency and plan deployment rings.
- What you get: Latest versions per channel/product + full release histories
- Data freshness: Timestamp shown (UTC + local tooltip)
- JSON API: Simple endpoints for automation / dashboards
- Visual cues: Relative recency indicators & styled tags
- Use cases: Patch status checks, tenant hygiene reviews, OS deployment planning
- Audience: IT admins, deployment engineers, security teams
- Approach: Read‑only aggregation of Microsoft‑published data
- Scope: Client app channels + Windows OS releases
"Microsoft 365 Apps" is the subscription, continuously serviced edition of the Office desktop apps. Update channels exist so organizations can balance speed of feature delivery vs predictability and validation time.
Latest Office 365 Versions
Current releases across all update channels
| Channel / Details | Version | Build | Latest Release | First Available | End of Service |
|---|
Current Channel
Latest features as soon as ready
Get the newest Office features as soon as they're released. Updated multiple times per month.
View Current ChannelMonthly Enterprise
Predictable monthly updates
New features once a month on a predictable schedule for enterprise environments.
View Monthly EnterpriseSemi-Annual Enterprise
Twice yearly updates
Feature updates twice per year for organizations that need extended testing periods.
View Semi-AnnualWindows Operating System Releases
Comprehensive tracking for Windows client and server platforms
Track every Windows release across client and server platforms. Our comprehensive database includes version histories, build numbers, KB article references, security updates, and servicing timelines. Whether you're managing enterprise deployments, planning upgrades, or monitoring compliance, all the data you need is here in one place.
Latest Updates
Client Operating Systems
Server Operating Systems
Showing the most recent update for each Windows version. Click through to version pages for complete update history.
Explore by Version
Windows 10
Extended SupportEnd of Support: October 14, 2025 (Home/Pro) • October 2032 (IoT Enterprise LTSC)
Access comprehensive version history for Windows 10, including all feature updates from 1507 through 22H2. Track monthly quality updates, security patches, and servicing timelines across all editions and channels.
Windows 11
Active SupportLatest Version: 24H2 • Support: Through October 2026+
Explore the latest Windows 11 release information with detailed version tracking from 21H2 to 26H1. Includes advanced filtering, monthly cumulative updates, feature updates, and out-of-band patches with full KB documentation.
Windows Server
Complete Windows Server tracking across all supported versions from 2016 to 2025. Monitor Long-Term Servicing Channel (LTSC) releases, Semi-Annual Channel updates, security patches, and cumulative updates. Each version includes dedicated release pages with detailed KB articles, build histories, and servicing timelines essential for enterprise server management.
Consolidated View Available
Need to see all Windows client releases in one place? Our consolidated page combines Windows 10 and Windows 11 data with advanced filtering, sorting, and search capabilities for cross-version analysis.
Developer API
Programmatic access to version data
Access Office 365 and Windows release data programmatically through our REST API.
Data Sources
Official Microsoft documentation
All information is sourced from official Microsoft release notes and update documentation.