it's okay. go for it, but 19 has a special step (JFFS) so please see/understand the OP before you begin
https://www.snbforums.com/threads/release-asuswrt-merlin-384-19-is-now-available.65801/
Can't find that second model you're indicating. Maybe you're talking about the RT-AC51U instead?
Oops! The node is the AC3100.
As for the JFFS, I have no idea what that is and if it applies to a plain old vanilla setup I have. Meaning no apps, scripts, or doodads.
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