iTunes 12.3 Major Upgrade Released

Just three month after the last major iTunes upgraded, version 12.3 was released today. The biggest addition is compatibility with Apple's iOS 9, also released today. But there are several other changes and upgrades worth noting:

From Apple:

This update to iTunes adds support for iOS 9 and is designed for OS X El Capitan. It also:

Improves Apple Music accessibility with VoiceOver

Resolves a problem that prevented reordering of songs within Up Next

Fixes a problem where some radio stations did not appear within Recently Played

Addresses an issue where songs you loved on iOS did not appear love on iTunes

Supports two-factor authentication to secure your Apple ID
This update also includes improvements to overall stability and performance.