Added

• Mark RTCP buffer Write as noinline. (for better heap attribution) (#4138)
• add debug metric for tracking references (#4134)

Changed

• Use isEnding to indicate if down track could be resumed. (#4132)
• switch participant callbacks to room to listener interface (#4136)
• protocol deps to get inactive file adjusted memory usage. (#4137)
• update webrtc to 4.1.8 to pick up DTLS fingerprint check during handshake (#4140)

Fixed

• Do not pause rid in SDP to prevent race with adaptive streaming (#4129)
• leak fixes (#4131, #4141, #4142, #4143, #4144)