Horizon API Upgrade Skill

When to Use

Use this skill when:

• Upgrading an existing Quest application to a newer Horizon OS SDK version
• Fixing deprecated API warnings or compilation errors after an SDK update
• Migrating between major API versions (e.g., VrApi to OpenXR)
• Understanding what changed between SDK releases
• Planning an upgrade path for a project that has fallen behind on SDK versions

General Upgrade Workflow

Every SDK upgrade, regardless of platform, follows the same high-level process:

1. Identify Current SDK Version

Determine what version the project currently targets: