Here’s a summarized and clear explanation based on your supplied article:
Windows 11 25H2 – Insider Release Overview
- Availability: Windows 11 version 25H2 is now live for Insiders. A global rollout is expected in the second half of 2025.
- Support Reset:
- Enterprise/Education: 36 months of support.
- Pro, Pro Education, Pro for Workstations, Home: 24 months.
- Upgrade Path for 24H2 Users:
- If you’re on version 24H2, moving to 25H2 is easy.
- Microsoft uses an “enablement package” (eKB)—a lightweight update that simply activates features already present from previous cumulative updates.
- Only one restart is required, and all new features go live.
- Update Process:
- Uses the same technology as monthly updates.
- Package sizes are about 40% smaller due to combined maintenance stack and cumulative updates.
- This approach means faster, more reliable installations.
- Source Code & Features:
- 24H2 and 25H2 share source code.
- New features for 25H2 are dormant/inactive under 24H2 until you apply the eKB.
- No compatibility issues are expected, but organizations should test all new features.
- Path for Older Versions:
- Systems before 24H2 (including Win 10) must do a full feature update, not just apply an eKB.
- Microsoft advises new devices or Win 10 devices upgrade to 24H2 first for easier later upgrade to 25H2.
- Less downtime, smaller package sizes, stability, and ease of activation for new features.
- Clearer, longer support cycles for organizations.
IT admins and organizations should plan migrations to 24H2 now to benefit from smoother future enablement of 25H2.
If you have questions about specific features in 25H2, compatibility concerns, or deployment best practices, let me know!
Source: Techzine Global Windows 11 25H2 available for Insiders
