Upgrading WRT1900ACS-v2 to 21.02

Ok.. heres the go... Wanting to upgrade

Linksys WRT1900ACS-v2 (shelby v2 - according to label on bottem of router)

Currently running

Model Linksys WRT1900ACS
Architecture ARMv7 Processor rev 1 (v7l)
Firmware Version OpenWrt 18.06.2 r7676-cddd7b4c77 / LuCI openwrt-18.06 branch (git-19.020.41695-6f6641d)
Kernel Version 4.14.95

Question is - Can i grab


And just upgrade - with zero issues - or is that release im currently running too old for the upgrade to just work.?

Not entirely keen on trying to re-setup everything as last time was a huge hassle and frankly, scary.. dont want to brick the router..

Trying to keep it all simple so my brain doesn't explode....

Due to the changes from swconfig to DSA, you won't be able to upgrade your configs.

You'll need to re-configure from scratch.

Save your current configs and use them as a guide.

You'll also need to use the factory image...using the sysupgrade image for 21.02.1 can brick a Linksys device.

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See also the various topics regarding WRT1900 /WRT3200 and 21.02.

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