<div class="meta" robots="noindex">

</div>

Property

# Xojo.System.VersionData.MajorVersion

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

<div class="warning">

<div class="title">

Warning

</div>

This item was deprecated in version 2020r2. Please use `System.Version/api/ios/system.version>` as a replacement.

</div>

## Description

The OS major version.

## Compatibility

All project types on all supported operating systems.