You can download the official installer directly from Apple’s legacy servers:
always pushes the latest software (or points you to the Music app on modern macOS), they do maintain a repository for older hardware: Official Apple Support : You can find manual downloads for older versions like iTunes 10.6.3 (the final version for PowerPC) or iTunes 12.8.3 Apple Support Downloads Third-Party Archives : Sites like download itunes 101399 for mac free
: For precise sub-versions like 10.1.3.99, sites like the Internet Archive or Uptodown often host comprehensive version histories. You can download the official installer directly from
For specific builds like 10.1, mirrors like OldVersion sometimes host older installers. download itunes 101399 for mac free
If you are using a very old PowerPC Mac or a version of Mac OS X prior to 10.6, you might be looking for the iTunes 10 series: