Logic Pro X v10.0.5 adds 3 new drummers, 11 new Drum Kit Designer patches, enhanced EQ features, offers improved performance and more.

New features and enhancements

• Includes 3 new Drummers and 11 new Drum Kit Designer patches.
• Significant enhancements to Channel EQ and Linear Phase EQ plug-ins, including: ◾Redesigned, easier-to-use interface that's also accessible within the Smart Controls area
• Double Precision processing provides more accurate filtering, especially for low frequencies
• Oversampling option improves high-frequency clarity
• Option to apply EQ only to stereo left, right, middle, or side signals
• There is now an option to set the Piano Roll to a light background color.
• Selected notes in the Piano Roll are now highlighted by a selection frame.
• When Logic is stopped or in Play mode, the glyph on the Metronome button in the control bar now illuminates to indicate that "Click while recording" is enabled.
• The Shuffle commands are improved (see Logic Pro X Help for details).

User interface

• There is now a command to assign region names to track names.
• The waveform size in an audio region now adapts to the value of the region gain parameter.
• Loops that belong to the same family can now be selected and changed using a new control in the region header.
• Logic Pro X now assigns region and Mixer channel colors that are closer to the original colors when opening a project created in an earlier version of Logic.
• Option-clicking a disclosure triangle in the Project Audio window now toggles all disclosure triangles in the window.
• The Windows menu again lists all currently open windows.
• The Mixer can now be reliably resized when in All mode.
• Renaming multiple selected Mixer channels now reliably renames all channel strips in the selection.
• When creating a duplicate track, the correct track icon and color are now assigned to the duplicate.
• The song title is now automatically populated in the Share to iTunes dialog when sharing a song created in Logic 9 or GarageBand for iOS.
• It's once again possible to browse or load patches onto the Output channel strip via the Library.
• The View menu items One Track and Selected Regions in the Piano Roll are now disabled when Link mode is disabled.

Performance

• Improves processor balancing for multi-output software instrument configurations.
• Improves handling of multiple displays on OS X Mavericks v10.9.
• Resolves an issue that in some cases might cause audio clicks and pops when scrolling.
• Moving an automation line while playing no longer spikes in CPU usages, or clicks and pops in the audio output.
• Resolves an issue that could cause clicks and pops in the audio output when adjusting the gain or output level settings during playback in the various plug-ins.
• Logic’s interface no longer freezes when using the Native Instruments Maschine controller to adjust two macro controls simultaneously.
• Fixes an issue in which a warning about not enough memory might be displayed when performing Undo after editing a protected track.
• Adjusting the frequency controls while playing audio through the Stereo Spread plug-in no longer causes audible zipper noise.
• Improves the performance of scrolling when dragging regions in the Tracks area beyond the currently visible section.
• Playing notes live into the Arpeggiator plug-in no longer sometimes leads to spikes in CPU usage.
• Fixes an issue that could cause a spike in CPU usage when recording near the end of a project.
• Logic 9 projects that contain a macro object in the Environment now behave more reliably when opened into Logic Pro X.
• Multiple instances of the Scripter plug-in no longer have the potential to cause stuck notes.
• The Scripter plug-in is no longer prone to causing stuck notes when using the Delay Note Until Next Beat preset.
• Switching between presets in the Space Designer plug-in no longer sometimes results in noise.

http://www.apple.com/ru/logic-pro/

New update focused on studios and Mac Pro buyers (also them)

• Logic Pro X 10.4.5 will now support up to 56 processing threads on the Mac Pro
• Logic Pro X 10.4.5 now supporting up to 1,000 audio tracks and 1,000 software instrument tracks
• Logic Pro X now supports 1,000 auxiliary channel strips
• 1,000 external MIDI tracks and 12 sends per channel strip.
• Improved responsiveness of the Mixer and Event List when working with large sessions