While 10.3 provided the visual and structural shifts, 10.3.1 focused on making those changes reliable:
: Fixed a critical bug where moving regions could cause unexpected behavior or accidental deletions, particularly when using Track Alternatives .
: Integrated specific controls for the then-new MacBook Pro Touch Bar. Legacy Compatibility Logic Pro X 10.3.1
: Added the ability to share projects with sample rates other than 44.1kHz directly to GarageBand for iOS .
: Introduced support for Audio Unit v3 specifications for virtual MIDI ports. Historical Context: The 10.3 Foundations While 10
: Introduced the ability to apply effects plugins directly to a single audio region rather than an entire track.
: Time-based edits (cutting or inserting time) were updated to apply to inactive Track Alternatives , ensuring alignment across all versions of a track. : Introduced support for Audio Unit v3 specifications
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.