Apple has released Mac OS X 10.10.4, which includes improvements for Photos and Mail. It also fixes several bugs (including the "discoveryd" service).
According to Apple, the update:
° Improves networking reliability;
° Improves Migration Assistant reliability;
° Addresses an issue that prevented certain monitors from functioning properly;
° Improves the reliability of upgrading iPhoto and Aperture libraries to Photos;
° Improves reliability when syncing photos and videos to the iCloud Photo Library;
read more
