AOS R10.5.4, R10.9.2, and R10.10.0 have been released and posted for the NetVanta 600 series. R10.5.4 and R10.9.2 are maintenance releases only, with R10.9.2 being our new extended maintenance release and most recommended. R10.10.0 is our latest feature release that includes many new features, enhancements, and bug fixes. Please reference AOS R10.5.4 Release Notes, AOS R10.9.2 Release Notes, and AOS R10.10.0 Release Notes for specific details. The NetVanta 600 series firmware can be downloaded from the firmware landing page links for each product below.