Each version of the Semi-Annual Channel is supported for 14 months, providing a wide window for troubleshooting.

Once the download finishes (this may take a while as it pulls several gigabytes), run the install command: setup.exe /configure config.xml . Switching an Existing Installation to Semi-Annual

Because feature updates happen only twice a year, there is less recurring pressure on the corporate network.

Fewer updates mean fewer chances for a new feature to break a critical business macro or Add-in.

The Semi-Annual Enterprise Channel is designed for organizations that require extensive testing before deploying new Office features. Unlike the Current Channel, which updates monthly, the Semi-Annual Channel provides feature updates only twice a year—typically in January and July.