docs: release: Add notes on Zephyr USB fixes and boot serial echo
Adds 3 notes, 2 for zephyr USB CDC ACM fixes and 1 for a boot
serial echo fix
Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
diff --git a/docs/release-notes.d/zephyr-usb.md b/docs/release-notes.d/zephyr-usb.md
new file mode 100644
index 0000000..7154f58
--- /dev/null
+++ b/docs/release-notes.d/zephyr-usb.md
@@ -0,0 +1,2 @@
+- Zephyr: Add USB CDC serial recovery check that now causes a build failure if console is enabled and device is the same as the USB CDC device.
+- Zephyr: Add USB CDC serial recovery check that now causes a build failure if the main thread priority is below 0 (cooperative thread), this would prevent USB CDC from working as the driver would not have been able to fire callbacks.