diff --git a/changelog/3774.added.md b/changelog/3774.added.md
new file mode 100644
index 000000000..032d8238f
--- /dev/null
+++ b/changelog/3774.added.md
@@ -0,0 +1 @@
+- Added `broadcasted` field to the base `Frame` class. This field is automatically set to `True` by `broadcast_frame()` and `broadcast_frame_instance()` to distinguish broadcasted frames from single-direction frames.
diff --git a/changelog/3774.fixed.md b/changelog/3774.fixed.md
new file mode 100644
index 000000000..a839f56ed
--- /dev/null
+++ b/changelog/3774.fixed.md
@@ -0,0 +1 @@
+- Fixed `RTVIObserver` not processing upstream-only frames. Previously, all upstream frames were filtered out to avoid duplicate messages from broadcasted frames. Now only upstream copies of broadcasted frames are skipped.