Previously Apple set the match limit at 25,000 songs, which for the average Joe is probably way more than enough. But for music lovers who've spent years amassing tracks, this is a big upgrade that should bring about a few smiles. Also, perhaps a few frowns from Android users -- Apple's new limit is twice as much as the 50,000 tracks supported by Google Play Music.
It's taken a few months for Apple to finally raise the ceiling. The jump from 25,000 to 100,000 tracks was something Apple senior vice president of Internet Software and Services, Eddie Cue, confirmed via Twitter the company was working on several months ago. At the time, he wasn't able to give a specific time frame.
As of this writing, Apple's Support Page still lists the limit as being 25,000 tracks (not including tracks purchased from the iTunes Store), though Eddie Cue has confirmed to MacRumors that Apple has "started rolling out support for 100k libraries." It's also been unofficially confirmed by several users who report being able to upload music libraries beyond 25,000 tracks.