I went to the cisco website to find the latest firmware for my client's router.
Currently the firmware is isr4300-universalk9.03.13.
In the downloads, i found:
I deduce that my client is using 3.13.4S(MD)
My account does not allow me to download 3.13.8s(MD) but I can download 3.13.7S(MD) but I am not able to review the version's release note, I clicked on the release note link and it brought me to https://www.cisco.com/c/en/us/support/ios-nx-os-software/ios-xe-3s/products-release-notes-list.html
which I do not know which document to look at. As I cannot find the release note for 03.13.7S.
Can anyone please help me on this?