For a successful installation, users were advised to have at least , as the update process required significant temporary storage beyond the file size itself. Download macOS Catalina 10.15.1 Update - Apple Support
: Following public concerns about audio grading, this update introduced a new setting allowing users to opt-out of sharing Siri and Dictation recordings with Apple for human review. macOS Catalina 10.15.1 (19B88) Update Only
The 19B88 build addressed several nagging bugs from the initial Catalina launch: For a successful installation, users were advised to