Apple Replaces Problematic 'Discoveryd' Process With mDNSresponder in 10.10.4 Beta 4
In today's fourth OS X 10.10.4 beta, Apple made a significant behind-the-scenes change that could result in improved networking performance for some users -- the removal of the "discoveryd" process. As noted by MacRumors forum members and 9to5Mac, in OS X 10.10.4 beta 4, the discoveryd process has been replaced by mDNSresponder.
Since OS X Yosemite debuted in October, there have been ongoing complaints about discoveryd consuming CPU resources, draining battery life, and causing issues with Wi-Fi. These problems have lingered for several months, even after multiple bug fixes and performance improvements included in OS X 10.10.1, 10.10.2, and 10.10.3.
Discoveryd was introduced with OS X Yosemite, replacing mDNSResponder for managing Mac networking tasks, but it's led to a host of problems like those listed above along with issues like slow wake from sleep, failures to resolve DNS names, duplicate machine names, and more, as detailed in a post earlier this year by Ars Technica. Several developers have also complained about discoveryd in Yosemite, including Instapaper's Marco Arment and Iconfactory's Craig Hockenberry.
It's no secret in the tech community that discoveryd is the root cause of so many problems. There are even crazy workarounds. With so many issues, you'd expect some information from Apple explaining ways to mitigate the problems.
The removal of the unstable discoveryd process in OS X 10.10.4 beta 4 may improve network stability problems for many users who have been experiencing continual issues. With the removal of discoveryd, Apple has reverted back to using the earlier mDNSresponder process that was used before discoveryd was implemented with OS X Yosemite.
Popular Stories
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025:
Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Apple may have updated several iPads and Macs late last year and early this year, but there are still multiple new devices that we're looking forward to seeing in 2025. Most will come in September or October, but there could be a few surprises before then.
We've rounded up a list of everything that we're still waiting to see from Apple in 2025.
iPhone 17, 17 Air, and 17 Pro - We get...
A new report from The Information today reveals much of the internal turmoil behind Apple Intelligence's revamped version of Siri.
Apple apparently weighed up multiple options for the backend of Apple Intelligence. One initial idea was to build both small and large language models, dubbed "Mini Mouse" and "Mighty Mouse," to run locally on iPhones and in the cloud, respectively. Siri's...
Apple in October 2024 overhauled its 14-inch and 16-inch MacBook Pro models, adding M4, M4 Pro, and M4 Max chips, Thunderbolt 5 ports on higher-end models, display changes, and more. That's quite a lot of updates in one go, but if you think this means a further major refresh for the MacBook Pro is now several years away, think again.
Bloomberg's Mark Gurman has said he expects only a small...
On this week's episode of The MacRumors Show, we catch up on the latest iOS 19 and watchOS 12 rumors, upcoming devices, and more.
Subscribe to The MacRumors Show YouTube channel for more videos
Detailed new renders from leaker Jon Prosser claim to provide the best look yet at the complete redesign rumored to arrive in iOS 19, showing more rounded elements, lighting effects, translucency, and...
A common complaint about the iPad Pro is that the iPadOS software platform fails to fully take advantage of the device's powerful hardware.
That could soon change.
Bloomberg's Mark Gurman today said that iPadOS 19 will be "more like macOS."
Gurman said that iPadOS 19 will be "more like a Mac" in three ways:Improved productivity
Improved multitasking
Improved app window management...
Apple's current struggles with Apple Intelligence and Siri began in early 2023 when AI head John Giannandrea sought approval from CEO Tim Cook to purchase more AI chips for development, according to a new report from The New York Times.
Cook initially approved doubling the team's chip budget, but CFO Luca Maestri reportedly reduced the increase to less than half that amount, and instead...
It was a big week for leaks and rumors in the Apple world, with fresh claims about iOS 19, the iPhone 17 Pro, and even the 20th anniversary iPhone coming a couple of years from now.
Sources also spilled the tea on the inner turmoil at Apple around the Apple Intelligence-driven Siri revamp that has seen significant delays, so read on below for all the details on these stories and more!
iOS ...
Apple plans to release its delayed Apple Intelligence Siri features in the fall, according to a new report by The New York Times.
In early March, Apple said that it was going to take longer than expected to roll out the more personalized Siri experience, and that these features would be rolled out "in the coming year." Subsequently, Reuters reported that the Apple Intelligence...
