Eminyakeni yakamuva, i-Apple ibilokhu yazisa njalo bonke abathuthukisi ngesidingo sokuvuselela izinhlelo zabo ezingama-32-bit ukuze zihambisane ngokuphelele nama-processor angama-64-bit, amanye amaprosesa aqala ukwenziwa ezikhumulweni ze-Apple kusuka ku-Iphone 5s, lokhu kungowokuqala ukukusebenzisa.
Ngokufika kwe-iOS 11, zonke lezo zinhlelo ezingakavuselelwa zishiyiwe, ngakho-ke azisatholakali kuwo wonke amatheminali ahambisana ne-iOS 11. Kubukeka sengathi isinyathelo esilandelayo sika-Apple sokuqala ukuhlanza ku-App Store siyathinta izinhlelo zokusebenza ezihambisana ne-watchOS 1, inguqulo yokuqala yohlelo lokusebenza lwe-Apple Watch.
Kwingosi yonjiniyela yakwa-Apple, unxusa bonke abathuthukisi abakhiphe izinhlelo zabo zokusebenza ngokukhishwa kwe-watchOS 1 to buyekeza i-watchOS 4 ukuze ihambisane nawo wonke amamodeli we-Apple Watch etholakalayo njengamanje ukuthengiswa yi-Apple, kufaka phakathi i-Apple Watch Series 3. Ngokubuyekeza izinhlelo zokusebenza ku-watchOS 4, abathuthukisi bazosebenzisa zonke izinzuzo zoketshezi nokusebenza okungezwe kupulatifomu ezinhlotsheni zakamuva ezithunyelwe yi-Apple emakethe ngaphezu kokukhulisa umkhawulo wesicelo kusuka ku-50 kuye ku-75 MB.
I-Apple izoqhubeka nokwamukela izibuyekezo zalezi zinhlobo zezinhlelo zokusebenza kuze kube ngu-Ephreli 1, 2018 olandelayo, Usuku lweziwula luka-Ephreli eMelika. Kusukela ngo-Ephreli 2, i-Apple ngeke isamukela izicelo ezifuna ukuvuselelwa noma ezakhiwe nge-watchOS 1 SDK. Isibuyekezo kufanele senziwe nge-watchOS 2 SDK noma kamuva. Uma kunguhlelo olusha, kufanele ngabe lwakhiwe yi-watchOS 4 SDK noma kamuva.
I-Apple njengamanje ithuthukisa i-watchOS 4.2 oku-beta yesithathu, futhi nenguqulo yayo yokugcina ihlelelwe ukukhishwa ngaphambi kokuphela kwalo nyaka.
