Izolo bekuwusuku lokuvuselela e-Apple. Futhi kungukuthi sibe nezinguqulo ze-beta ze-OS ehlukene amasonto amaningi futhi izolo ntambama nje zonke izinhlobo zokugcina zeMacOS Sierra, iOS, watchOS ne-tvOS zikhishiwe. Kepha ngaphezu kwalezi zinguqulo ezintsha ze-OS, ihhovisi lehhovisi lika-Apple libuye lavuselelwa futhi njengoba sikwazi ukubona esihlokweni salesi sihloko, a Ukuvuselelwa Kokuphepha '2017-001' kwe-OS X Yosemite ne-El Capitan. Lokhu kubuyekezwa kokuphepha kuyatholakala njengezinye izinhlobo ze-Mac ezivela ku-Mac App Store futhi ukufakwa kuyanconywa kubo bonke abasebenzisi abahlala kulezi zinguqulo.
I-Apple ayiphikisani ngokuthuthuka okuphawulekayo noma izinguquko ekusebenzeni kwezinhlelo ze-OS X Yosemite ne-OS X El Capitan, imane nje ingeze ukuthuthuka okuthile noma ukulungiswa ekuvikelekeni kuzo. Empeleni ukuphela kwento inkampani yaseCupertino ecacisa kumanothi walesi sibuyekezo inombolo yenguqulo yokuphepha futhi akukho okunye:Ukuvuselelwa Kokuphepha kwe-2017-001 kunconyelwe bonke abasebenzisi futhi kuthuthukisa ukuphepha kwe-OS X »
Kunengqondo ukuthi sincoma ukuvuselelwa kwabo bonke labo abangakwazi ukuvuselela isistimu yabo yokusebenza kuya enguqulweni yamanje ye-MacOS Sierra 10.12.4 nganoma yisiphi isizathu. I-Apple iyeke ukukhipha izinhlobo ezintsha ngokuthuthuka kwalezi OS X Yosemite ne-El Capitan esikhathini esedlule, manje ikhipha kuphela izibuyekezo zokuphepha ukulungisa izimbungulu noma ukwehluleka kwesistimu. Ukulanda isibuyekezo esisha sokuphepha kufanele nje ufake ifayela le- Mac App Store kanye kuthebhu Yokubuyekeza sizothola lesi sibuyekezo.