Update RELEASENOTES-DEVELOPMENT.md

diff --git a/RELEASENOTES-DEVELOPMENT.md b/RELEASENOTES-DEVELOPMENT.md
index 2963de68b506c65a1144efb27d6d3b49c8c002ce..47a0b07e2c81cf7ff1f303d89e3e2f5b5f113c2f 100644 (file)
--- a/RELEASENOTES-DEVELOPMENT.md
+++ b/RELEASENOTES-DEVELOPMENT.md
@@ -1,3 +1,13 @@
+Version 4.1-
+====
+**Enhancement**
+* Add two new metadata tokens for AirPlay 2 buffered audio streams only, which can be paused for a period of about five minutes before the session is ended. They are for Pause (`paus`) and Resume (`pres`).
+* Clean up the generation of `MPRIS` and D-Bus `PlayerStatus` values. Until now, Shairport Sync used extra information to try to determine the state a session was in -- `Playing`, `Paused` or `Stopped`. The extra information used what (1) when the first frame was played, (2) when a flush was requested and when (3) frame play was resumed. Unfortunately, these are noisy signals and are unreliable for this purpose, so they are now no longer used.
+
+  The situation now is that `PlayerStatus` becomes `Playing` when a play session begins and becomes `Stopped` when a play session ends, unless it is an AirPlay 2 buffered audio session.
+  
+  In the case of a AirPlay 2 buffered audio session, a play session will be `Paused` when play stops (but the play session is not ended). If play resumes within a period determined by the client (about five minutes), `PlayerStatus` will return to `Playing`. Otherwise, the play session is ended by the client and `PlayerStatus` will transition to `Stopped`.
+
 Version 4.1-dev-738-g9f7584eb
 ====
 **Enhancement**