Because it has become extensively used in Apple’s operating systems, considerable work has been put into optimising its performance, particularly on ARM systems, where it’s thought to have the benefit of hardware assistance.ĪA was first opened up fully to third-parties in Big Sur, and is classed as part of Apple’s Accelerate libraries for high performance computation. This article is a general introduction before I dive deeper into how you can get the best from Apple Archive.Īpple first introduced AA’s primary compression scheme LZFSE (for Lempel-Ziv Finite State Entropy) back in OS X 10.9, and provided limited access for disk image compression in Mac OS X 10.11.
This week I’m moving away from fractious external storage and looking in more detail at Apple Archive (AA), sometimes AppleArchive without the space, compression first opened up in Big Sur, and enhanced with encryption in Monterey.
