Synfire Pro 1.6.4
The new update comes with a much improved MIDI file import: Now you can batch-import a library, reading all files in a directory (Pro). This is especially useful for importing drums or other phrases for a particular single instrument.
We also fixed a number of bugs and improved the interactive behavior of the Harmonizer, to make it more intutive.
One thing that may have annoyed users for a while already is playback start position while editing a phrase in a container. One of the previous updates changed this to add a pre-roll to playback, so the edit can be reviewed in a musical context (instead of playing straight from the currently selected note). This was fine, except that the pre-roll happened to be to long quite often. This was now changed to go no further than to the beginning of the current container. Difficult to explain -- you will notice when you use it.
On the Mac, all windows now have local menu bars by default. Unless you make a clean new install, you will however need to enable this in the preferences.
All changes, except the batch import, are also available in the Express edition (Express does not have a library import feature).
A complete list of changes can be found here