add changelog with 4.0.0

lucidstack · Apr 2, 2016 · 85d8afc · 85d8afc
1 parent d991dd0
commit 85d8afc
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -0,0 +1,5 @@
+# Changelog
+
+## 4.0.0
+* `@ 19ff9a8` MIDI events from PortMidi.Input are now sent as a tuple of three values, instead of an array. This makes the API consistent with PortMidi.Output, which accepts a tuple of three elements.
+* `@ 59efd17` MIDI events are now sent with the server PID, which is returned when an input is opened (e.g. `{:ok, input} = PortMidi.open(:input, "Launchpad")`). This makes it easy to differentiate received messages, so that a process can listen on multiple MIDI devices, and be able to handle the messages differently, pattern matching on the input. The MIDI event is sent as a second tuple, e.g. `{^input, {status, note, velocity}}`.