Onjiniyela manje sebenazo I-OS X Yosemite 10.10.4 beta yesithathu itholakalela ukulanda kusuka kusikhungo sonjiniyela se-Mac. Ngemuva kokukhipha inguqulo yesibili ye-beta ekugcineni Ephreli 28, manje kuza uhlobo lwesithathu lwezinguqulo ze-beta zonjiniyela zokufaka nokuhlola le nguqulo.
Lokhu kwakha i-14E17e futhi ngokomthetho ilungisa ezinye izinkinga, izimbungulu nezimbungulu zohlobo olwedlule, kepha hhayi okuningi okuningi okucacisiwe mayelana nokuthuthuka okungezwe kule beta 3 ngoba kubonakala kugxile ekusimeni nasekuphepheni kwenguqulo. I-beta entsha ihambisana ne-beta elandelayo ye-iOS 8.4 ebuye ithuthukise ukuzinza futhi mhlawumbe nohlelo lokusebenza loMculo.
Le beta entsha ye-OS X iqalisa nini ngaphansi nje kwenyanga ukuya ku-WWDC yalo nyaka 2015 futhi kungenzeka ukuthi kungukubuyekezwa kokugcina noma kokugcina kwe-OS X 10.10 ngaphambi kokukhipha inguqulo yokugcina bese wenza kweqa ku-OS X 10.11. Konke lokhu sekukude, ngakho-ke sizobona ukunyakaza kwe-Apple kulokhu futhi sikholelwa ukuthi kungekudala sizoba nohlobo lwe-beta lomphakathi lwe-OS X 10.10.4.