Sagan Technology has updated Metro to v6.3.8.3.

New:

• Holding control while closing an effects edit window will now close the editor completely. This works around a problem with Arturia's Moog Modular whereby the editor uses up much of the processor time even when the edit window was hidden.
• Recording MIDI from a plug-in is now disabled unless the user explicitly selects 'Record MIDI' from the effects window's contextual menu popup accessed by control-clicking on the name of the plug-in. Previously, since recording was always enabled, this could cause seemingly spurious MIDI events to be sent in MIDI through.
• A new option in the plug-ins window contextual menu, adds support for Audio Unit plug-ins which do not support sample accurate automation (namely PSP's).

Fixed:

• Better VST 2.4 compatibility.
• Metro was not reading/converting old Metro 4 data files correctly on Intel Macintoshes.
• In very rare cases it was possible that an operation on section events (time/key sigs or master volume) could cause automation on other tracks to become messed up.
• Importing a MIDI file was leaving the file open in some cases.
• Inserting Master volume events via the continuous data dialog during playback would likely fail.
• Audio scrubbing was not working correctly.
• Setting the selection filter to the first n of m notes, could cause a crash.
• In rare cases, when working with an aggregate audio device, it was possible that the device would stop responding requiring an audio reset to get the device back.
• Transpose was changing the selected notes in some rare cases.
• Entering text via the keyboard was causing crashes in older carbon based VST plug-ins (PPC only).
• Software audio through was broken on Intel Macs when the recording bit depth was set to 32.
• Software audio through would not restart after clearing an entire record-enabled track.
• If audio glitches occurred, the play bar would be out of sync with the audio.
• If a key signature event occurred at the same exact time as a Tempo change event, the tempo could be messed up for virtual instruments.
• Selecting a new folder or adding files to the existing Jukebox while the Jukebox was playing could have failed.
• Selecting a new track output would not mark the document as changed.