Are the 2 releases the same Shinkis (Arnval Mk.2 & Strarf Mk.2), just repackaged? It kind of looks that way...

It's the same situation as Wave 1 Arnval/Strarf and Arnval Tranche 2/Strarf Bis. They're the original colors, but include the new parts from from the repaints, as well as yet more new parts.

Thanks, that's a relief XD

Is there any list with that relation between releases? It would suck to hunt down an older kit just to find out there's a newer one that's the exactly the same but with extra parts.
Is it a safe bet just to get the latest release of a character or are there cases where the newer version has been nerfed?