Apple officially discontinued security updates for Catalina in late 2022, but the operating system remains functional. Always download from official or trusted sources to avoid malware.
If you want to create a bootable installer for future installations or for other Macs, you can use tools like: download catalina 10157 full installer high quality
Type the following command and press Enter: softwareupdate --fetch-full-installer --full-installer-version 10.15.7 download catalina 10157 full installer high quality
To download the high-quality, official , it is best to use Apple's verified methods rather than third-party sites, which can pose security risks. Method 1: Mac App Store (Recommended) download catalina 10157 full installer high quality