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How to find information regarding command differences for IOS releases

HI all,

I wanted to know, if there are some information regarding command differences between IOS releases.

Currently I'm running some 9300er switches with IOS-XE 16.6. We're planning to upgrade to IOS-XE 17.3. I know, there are some command changes, for instance "ip domain-name" changed to "ip domain name"

So, I would like to know

  • where to find a sheet or overview of changed commands (If I don't know, when this command changes, e.g. is change in ios-xe 16.9, 16.12., 17.1, etc.)
  • Is there an automatic adjustment in IOS which transforms "wrong" commandos for new IOS in "correct" one (see example above, command "ip domain-name" changes automatically to "ip domain name"

I know there is a command history for each command. But my switch configs have myriads of commands. Do I have to check every single command?

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