Have you ever heard the song?
I agreed about
Boys & Girls &
End roll because it sounds different from originals one.
Boys & Girls in A BEST have additional guitar tune, it sounds very nice though

But for the vocals, i think nothing is different.
End roll sure is different, Ayu vocals has been better in A BEST version, but nothing different with the arrangement, it's still the same (I think).
My conclusion is only
End roll had re-recorded but
Boys & Girls not.
About tracklisting in the cover, they didn't put ~New Vocal & Mix~ in
Boys & Girls &
End roll though maybe because the top 3 songs are from
A Song for XX album that need re-recorded and
Boys & Girls &
End roll are from LOVEppears.
Why need re-recorded? I can't find the reason though, but there's my opinion.