When upgrading a SZ100 from 3.0.4.0667 to 3.5 firmware. No need preserve any configuration information. Do Ineed to take the iterateive upgrade steps, or can I upgrade directly to 3.5? Any other things to consuider, such as licensing, etc.
The release notes provide you the supported upgrade paths. As you can see in there, only from version 3.2.1 it's supported. So first upgrade to 3.2.1.0.245 or higher and then you can go to 3.5
Please check also which Access Points are supported in the 3.5
