: Fixed a critical bug where moving regions could cause unexpected behavior or accidental deletions, particularly when using Track Alternatives .
: Introduced support for Audio Unit v3 specifications for virtual MIDI ports. Historical Context: The 10.3 Foundations Logic Pro X 10.3.1
To understand 10.3.1, you have to look at the massive 10.3 update it stabilized: : Fixed a critical bug where moving regions
: Added the ability to share projects with sample rates other than 44.1kHz directly to GarageBand for iOS . As of 2026, version 10
As of 2026, version 10.3.1 is considered a legacy version. It requires at least or later to run. It was also notably the version that established compatibility for macOS High Sierra . While modern versions like Logic Pro 11 have since introduced advanced AI features and Spatial Audio tools, 10.3.1 remains a milestone for those using older Intel-based hardware.
: Integrated specific controls for the then-new MacBook Pro Touch Bar. Legacy Compatibility
: Time-based edits (cutting or inserting time) were updated to apply to inactive Track Alternatives , ensuring alignment across all versions of a track.