Apple Logic Pro X v10.2.4 [Mac OSX]

Stability/Reliability

Logic Pro X no longer quits unexpectedly:

Sometimes when opening or creating a project.
Sometimes when picking an icon for a Drum Machine Designer cell.
When rubber band selecting a group of notes in the Piano Roll immediately after changing screen sets.
When initializing a connected Mackie HUI control surface.
When the currently active audio device is disconnected and then reconnected.
When selecting Import Audio from an Alchemy SOURCES pop-up menu.
When using an Alchemy SOURCES pop-up menu to import audio on a system that includes a mounted volume whose name begins with a Unicode 2-byte character.
When a file with a name containing 2-byte characters is dragged onto the Current or Reference button of the Match EQ plug-in.


Performance

Opening the extended parameters of Retro Synth in OS X Yosemite no longer sometimes triggers an Internal Error alert.
There is no longer a glitch at the beginning of a skip cycle area when Cycle Pre-Processing is enabled.
Quantizing notes on a Software Instrument track during playback no longer sometimes causes audio dropouts.
Stepping through Alchemy presets no longer causes the memory usage of Logic Pro to rise unexpectedly.
Alchemy no longer causes Logic Pro memory usage to rise unexpectedly when stepping though samples using the source left/right buttons.


Editing

It is once again possible to Shift-click to select non-contiguous notes in the Piano Roll editor.
Pressing Option-Shift while adjusting the Piano Roll Velocity slider again sets all notes to the same velocity as expected.
It is once again possible to use the pointer to rubber-band select MIDI Draw points that were created with a MIDI channel setting of All.
It is no longer possible to inadvertently set the length of a note to 0 ticks in the Event Editor or the Step Editor