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   Apple Improves Networking in OS X 10.10.4

   Josh Centers

   If you've been plagued by networking problems since updating to OS X
   10.10 Yosemite, your salvation is at hand with the [1]OS X 10.10.4
   update, which ditches the unreliable discoveryd service for the trusty
   old mDNSResponder. In plain English, that should mean the return of
   stable networking in OS X. You can install OS X 10.10.4 via Software
   Update, or from [2]Apple Software Downloads, when available. As always,
   it's smart to wait a few days to see if any major issues crop up, but
   if you've been hammered with networking problems, an immediate upgrade
   may be advisable. Be sure to back up first!

   We're hoping OS X 10.10.4 addresses the sync issues brought up by Adam
   Engst in '[3]How to Throttle iCloud Photo Library Uploads,' (20 May
   2015) and '[4]More Problems with iCloud Photo Library Uploads,' (19
   June 2015). Apple mentions fixes like 'improves reliability when
   syncing photos and videos to iCloud Photo Library,' and 'improves the
   reliability of upgrading iPhoto and Aperture libraries to Photos.'
   Also, 10.10.4 fixes an issue that could cause Photos to crash after
   importing some Leica DNG files.

   Additionally, OS X 10.10.4 improves the reliability of Migration
   Assistant and addresses an issue that prevented some external displays
   from functioning properly. There are also fixes for delayed outgoing
   messages in Mail and an issue that allowed Web sites to prevent users
   from navigating away in Safari by presenting repeating JavaScript
   alerts.

   For enterprise customers, OS X 10.10.4 has a fix for an issue where
   Macs bound to directory services could stop responding under certain
   conditions. Also, the update grants the capability to create mobile
   accounts with the createmobileaccount command-line tool and fixes an
   issue in Profile Manager that could allow users to install pre-release
   software even when the setting was disabled.

   OS X 10.10.4 also includes a number of [5]security fixes.

References

   1. https://support.apple.com/en-us/HT204928
   2. https://support.apple.com/downloads/
   3. http://tidbits.com/article/15679
   4. http://tidbits.com/article/15745
   5. https://support.apple.com/en-us/HT204942

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