Occasionally, Apple keeps specific older versions available for enterprise users or those with specific OS requirements. You can search the Apple Support "Downloads" section, but the selection is limited.

Provides verified MD5 checksums for historical iTunes installers, ensuring the setup files have not been modified or injected with malicious code.

[ Apple Support Security Layer ] │ ┌───────────────┴───────────────┐ ▼ ▼ [ iTunes 12.8.3 for Mac ] [ iTunes 12.6.3 for Corporate/Edu ] - Supports OS X Yosemite - Retains iOS App Store - Native iPod syncing - Bypasses v12.7+ restrictions 1. iTunes 12.6.3 (The "App Store" Edition)

Older versions of iTunes rely on outdated security certificates and older encryption standards. They may fail to connect to the modern iTunes Store or account management servers due to two-factor authentication (2FA) handshake mismatches.