doc: release-notes 3.3: Add MCUmgr shell buffer size change
Adds details on a bug for for the shell RX ring buffer receive
size being made larger when the shell MCUmgr transport is
selected, to fix an issue whereby commands were corrupt.
@@ -1164,6 +1164,11 @@ Libraries / Subsystems
``printk()`` calls to the logging system, For user applications,
:kconfig:option:`CONFIG_LOG_PRINTK` should be enabled to include this fix.
+ * A bug when MCUmgr shell transport is used (issue was observed over USB CDC
+ but could also occur with UART) whereby the default shell receive ring
+ buffer is insufficient has been fixed by making the default size 256 bytes
+ instead of 64 when the shell MCUmgr transport is selected.
+
* LwM2M
* The ``lwm2m_senml_cbor_*`` files have been regenerated using zcbor 0.6.0.
