Apparently now returning to a weekly update cycle following the holidays, Apple late on Wednesday issued a fifth developer beta of the next update for OS X, 10.10.2. The new build, 14C99d, comes exactly one week after the previous version, 14C94b. Focus areas in the new beta remain the same, asking developers to test Wi-Fi connectivity in particular and Mail, VoiceOver, and Bluetooth as well. Wi-Fi and Mail have been continued to be problem areas for some Yosemite users.