Upgrading routeur 6.49.3 to v7+

RouterOS Beginner Basics
1

Hi everyone !
I’m new on Mikrotik Routeur , have some question.
Upgrading 6.49.3 to v7+ firmware version will break the script i had in my current routeur ?
If it break it how i can back to 6.49.3 ?
Why i cant import my 6.49.3 confing cript in the v7 2nd routeur i have (new one)
the command >>>>>>> routing-mark=Inbound_OVH_route
expected end of command (line 513 column 5)

My first routeur is a CCR1009-7G-1C version 6.49.3 and my new one is a CCR2004-16G-2S version 7.4.1
I need to install the new one if the 1st one is have a problem in the future.

Ty for the help ! Have a good day !

2

Yes, there are changes in syntax. You should check your scripts.

The best way for me is to use CLI and do “print” them from “scripts menu” to see all places with syntax errors marked.

3

where i can find the script menu ? I’m using WinBox to configure the new one.
Thanks for helping !