Update & Upgrade Problems

Why Microsoft 365 Apps Version 2402 Shows Different Build Numbers

Maira Mehtab Sep 20, 2026 868 views

Question details

The user noticed that the Supported Versions and Version History sections in the Microsoft 365 Apps documentation list different build numbers for the Semi-Annual Enterprise Channel version 2402.

Product: Microsoft 365 Apps
Device & OS: not provided
Scenario: Reviewing Microsoft 365 version history and supported versions documentation for enterprise deployments.
Observed behavior: The documentation displays multiple different build numbers for a single version release (2402) in the Semi-Annual Enterprise Channel.

Before you start

Verify which Microsoft 365 update channel your organization is currently enrolled in, as the Semi-Annual Enterprise Channel follows a different update cadence and support lifecycle compared to the Current Channel.

Solution 1Recommended

Understand the Semi-Annual Enterprise Channel Lifecycle

Clarifies why multiple build numbers exist for a single version release over its extended support period.

It is completely normal for a single version of Microsoft 365 Apps to have multiple build numbers when enrolled in the Semi-Annual Enterprise Channel.

Because these versions remain supported for an extended period (typically 14 months), they continue to receive periodic security and quality updates. Each time an update is rolled out, a new build number is generated under the same overarching version.

Recognize extended support

Understand that Semi-Annual Enterprise Channel versions are supported for 14 months, receiving continuous security and quality patches without changing the main version number (e.g., 2402).

Check the update timeline

Look at the release dates in the Version History documentation. You will notice that each new date corresponds to an incremented build number, explaining the variations seen in the Supported Versions list.

Normal Behavior: These differing numbers do not indicate an error in the software; they simply reflect the ongoing maintenance updates applied to version 2402.

Solution 2

Report Documentation Inconsistencies Directly to Microsoft

Guides you on the correct channels to use if you spot a genuine error or typo in the Microsoft 365 documentation.

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Frequently Asked Questions

Why do Microsoft 365 version numbers stay the same while build numbers change?

The version number (like 2402) indicates the specific feature release, while the build number increments with every security or bug-fix update applied to that version during its support lifecycle.

What is the Semi-Annual Enterprise Channel?

It is an update channel for Microsoft 365 Apps that provides new features only twice a year. It offers a longer, 14-month support lifecycle and receives monthly security updates.

Where is the best place to report Microsoft documentation errors?

You should use the 'Feedback' section usually found at the bottom of the specific Microsoft documentation page, rather than posting in developer or general user support forums.

Installation & Activation