Note: The headings on this list indicate the Macintosh System bundle names; the bullet points indicate the version of the System File included in that bundle. This is to make it clearer for people searching for specific bundle versions as opposed to System File versions. Finder File versions are not indicated. 1 Classic Mac OS 1.1 Macintosh System Software (0 - 0.3) 1.1.1 System File 1 1.1.2. Download the best app to communicate over video, voice, or text. Available for Windows, macOS, Linux, iOS, and Android devices. The main product is 'Mac OS X', the version number is, in the latest as of this writing, 10.4.10, and the name of the version is Tiger. That makes it Mac OS X Tiger, version 10.4.10. Also, 7.5.1 was the first version to say 'Mac OS' on startup, but the name of the OS wasn't officially changed until 7.6.
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