iTunes versions ending in a fourth digit (like .99) were typically specific builds released for Windows operating systems.
If Apple has removed the specific build you need, reputable software archives still host them: download itunes 101399 for mac free
For Mac users, the equivalent stable release in that era was iTunes 10.1.2 or the slightly later iTunes 10.2 . iTunes versions ending in a fourth digit (like
Connect your iPhone or iPod to your Mac and open Finder [2]. Your device will appear in the sidebar, allowing you to sync music, backup, and restore just like you did in iTunes [2, 4]. allowing you to sync music