, as it is documented to be more stable for Pro Tools 10 than unsupported later versions like Mavericks. Avid Pro Audio Community on your Mac? Pro Tools 10.3 System Requirements - Knowledge Base - Avid
Re-install the latest drivers for your specific hardware (HDX, HD Native, etc.) immediately after the software installation. Avid Pro Tools HD 10.3.10 R3 hotfix only For Mac
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While the standard 10.3.10 release was a full installer, the "R3" iteration is often associated with specific hotfixes aimed at the Avid Pro Audio Community to ensure that legacy HD hardware—such as —remains functional on supported legacy Mac systems. For many professional studios, this hotfix remains the "gold standard" for maintaining 32-bit RTAS and TDM plug-in compatibility before fully transitioning to the AAX-only environment of later versions. Pro Tools 10.3.10 Information & Downloads - Knowledge Base , as it is documented to be more