Since last year, a number of Mac OS X Yosemite users have reported various networking issues on their Mac computers. Complaints have ranged from frequent connection drops -- both wired and wireless -- to a networking process using 100 percent of the CPU at times.
The culprit? The Discoveryd process in Yosemite that helps manage the network stack in OS X.
Version 10.10.4 of Yosemite, released by Apple on Tuesday, should resolve many of the issues but not because Apple fixed Discoveryd.
Instead, the company moved back to an older networking process called mDNSResponder that has been around since OS X 10.2 according to iMore.
Hints of Apple reverting back to the older process actually appeared in the 10.10.4 beta, so early adopters won't be surprised by this news.
And it's not likely most mainstream users will care how Apple addressed the problem, so long as their Macs have better networking reliability after installing OS X 10.10.4. It's worth noting too that switching back to mDNSResponder hasn't impacted the useful Continuity and Handoff features between iOS and OS X, so there's no loss of functionality if you upgrade your Mac's software.