Sagan Technology has updated Metro to v6.4.3.2.

New:

• Improved Core Audio compatibility.
• Arpeggiator has a new "spread" slider allowing among other things, guitar like strumming.
• The left and right arrow keys can now be used to rotate the arpeggiator pattern in the keyboard window.
• Many other arpeggiator improvements.
• Dragging bar lines is now possible during playback.
• Rendering a soloed track results in the new track being soloed and the old track being un-soloed.
• It is now possible to automate and edit Aux buss return pan and volume.
• Shift now affects all automation on audio tracks.
• Total remaining time is now an option in the jukebox window.
• Help tags added to portions of the jukebox and effects windows.
• Auto audio shut off for audio/MIDI tracks. This means that Metro will now remember and relate the 'none' audio input setting on a track to a Virtual Instrument (VI). This setting is then restored when the VI is instantiated. The setting is remembered internally similarly to the contextual menu settings in the plug-ins window, i.e. in the SaganTechHostPluginInfo file.
• The maximum external MIDI ports has been increased from 32 to 128.
• Command-up and Command-down arrow keys now transpose notes when in drum views.
• The list event editor maintains its start time when changing the event filter.
• It is now possible to cancel searching for missing audio files by pressing the 'esc' key.

Fixed:

• A possible crash could occur when attempting to shift frozen audio data.
• Arpeggiator latching is automatically ended when playback stops.
• Expand, as of version 6.4, was not adding outputs as necessary.
• Punch in track would not play before the punch in recording point and the record light was not flashing.
• Using the '[' and ']' keys to select previous and next notes now wrap correctly in both directions.
• Software play through was not being enabled during playback (track inserts only).
• Software play thru could be errantly get muted in certain cases including if there was a count off.
• A problem with automation could occur if multiple sample rates were used in a document.
• On the fly recording (record pressed during playback) works correctly now.
• Selection filter presets were not working in some cases depending on PPQ settings.
• Incoming MIDI notes were not recorded correctly if sysex was being sent out at the same time.
• Copying and pasting automation from an aux track was not always working.
• Clicking on the search window in the jukebox could cause a crash if there were no items listed.
• If audio devices were changed it was possible that the audio input select menu would check default items incorrectly.
• If Section Events were looped, tempo changes occurring after the end of the song were not being accounted for (e.g. in the case of cue looping).
• A crash could have occurred if plug-in presets were mapped to program changes.
• In some cases audio would initially be audible when recording over it.
• A MIDI Server crash that could occur with certain MOTU MIDI drivers has been worked around.
• Playback is no longer stopped after punch-in end if the 'stop playing at punch-in end' is not checked in the punch-in dialog.
• Expanding track loops was not working correctly if the track loop did not start at the beginning of the track.
• Plug-in editor sizes were not always being restored properly when a document was opened.
• The text in the set selection dialog would appear with a black background on occasion under Leopard (10.5).
• Software Audio Through would not play through the master effects chain in certain cases.
• Effect parameter text labels no longer run into each other in the generic VST editor.
• Changing the sidechain pre/post setting now takes affect immediately.
• Better compatibility with VST's that do not know their editor sizes until after they are opened, e.g. Helix.
• Miscellaneous bug fixes and other enhancements.