diff --git a/features/webrtc-stats.yml b/features/webrtc-stats.yml
index 18e5110b6fa..96b83c63529 100644
--- a/features/webrtc-stats.yml
+++ b/features/webrtc-stats.yml
@@ -5,7 +5,6 @@ group: webrtc
 compat_features:
   - api.RTCStatsReport
   - api.RTCStatsReport.@@iterator
-  - api.RTCStatsReport.@@iterator
   - api.RTCStatsReport.entries
   - api.RTCStatsReport.forEach
   - api.RTCStatsReport.get
diff --git a/features/webrtc-stats.yml.dist b/features/webrtc-stats.yml.dist
index 75592167cad..143dec35646 100644
--- a/features/webrtc-stats.yml.dist
+++ b/features/webrtc-stats.yml.dist
@@ -49,7 +49,6 @@ compat_features:
   #   safari: "11"
   #   safari_ios: "11"
   - api.RTCStatsReport.@@iterator
-  - api.RTCStatsReport.@@iterator
   - api.RTCStatsReport.entries
   - api.RTCStatsReport.keys
   - api.RTCStatsReport.values
diff --git a/features/webrtc.yml b/features/webrtc.yml
index 52008f78e3a..c8ca665dade 100644
--- a/features/webrtc.yml
+++ b/features/webrtc.yml
@@ -38,6 +38,7 @@ compat_features:
   - api.RTCDataChannel.readyState
   - api.RTCDataChannel.sctp_sdp_21
   - api.RTCDataChannel.send
+  - api.RTCDataChannel.transferable
   - api.RTCDataChannelEvent
   - api.RTCDataChannelEvent.RTCDataChannelEvent
   - api.RTCDataChannelEvent.channel
@@ -50,6 +51,8 @@ compat_features:
   - api.RTCError
   - api.RTCError.RTCError
   - api.RTCError.errorDetail
+  # in the identity spec?
+  #- api.RTCError.httpRequestStatusCode
   - api.RTCError.receivedAlert
   - api.RTCError.sctpCauseCode
   - api.RTCError.sdpLineNumber
@@ -216,10 +219,13 @@ compat_features:
   - api.RTCRtpTransceiver.currentDirection.stopped_value
   - api.RTCRtpTransceiver.direction
   - api.RTCRtpTransceiver.direction.value_stopped
+  - api.RTCRtpTransceiver.getHeaderExtensionsToNegotiate
+  - api.RTCRtpTransceiver.getNegotiatedHeaderExtensions
   - api.RTCRtpTransceiver.mid
   - api.RTCRtpTransceiver.receiver
   - api.RTCRtpTransceiver.sender
   - api.RTCRtpTransceiver.setCodecPreferences
+  - api.RTCRtpTransceiver.setHeaderExtensionsToNegotiate
   - api.RTCRtpTransceiver.stop
   - api.RTCSessionDescription
   - api.RTCSessionDescription.sdp
diff --git a/features/webrtc.yml.dist b/features/webrtc.yml.dist
index 3a579ac979f..63fab2a25c7 100644
--- a/features/webrtc.yml.dist
+++ b/features/webrtc.yml.dist
@@ -1268,6 +1268,15 @@ compat_features:
   #   firefox_android: "115"
   - api.RTCRtpReceiver.jitterBufferTarget
 
+  # baseline: false
+  # support:
+  #   chrome: "130"
+  #   chrome_android: "130"
+  #   edge: "130"
+  #   safari: "15"
+  #   safari_ios: "15"
+  - api.RTCDataChannel.transferable
+
   # baseline: false
   # support:
   #   chrome: "75"
@@ -1293,6 +1302,15 @@ compat_features:
   - api.RTCRtpReceiver.createEncodedStreams
   - api.RTCRtpSender.createEncodedStreams
 
+  # baseline: false
+  # support:
+  #   chrome: "117"
+  #   chrome_android: "117"
+  #   edge: "117"
+  - api.RTCRtpTransceiver.getHeaderExtensionsToNegotiate
+  - api.RTCRtpTransceiver.getNegotiatedHeaderExtensions
+  - api.RTCRtpTransceiver.setHeaderExtensionsToNegotiate
+
   # baseline: false
   # support:
   #   chrome: "124"