AOS 18.01.06 was released and posted for the first generation NetVanta 123X switches. 18.01.06 is a maintenance release only. It includes bug fixes found since the release of 18.01.05. It does not include any of the features available in later feature releases. Please reference the AOS 18.01.06 Release Notesfor specific details. The NetVanta 123X series firmware can be downloaded from the firmware landing page links for each product below.