Mail::DKIM missing ed25519-sha256 ?

[Benny Pedersen]

Authentication-Results	mx.junc.eu (amavisd-new); dkim=neutral 
reason="invalid (unsupported algorithm ed25519-sha256)" 
header.d=gluet.ch header.b="hDiH2XzM"; dkim=pass (2048-bit key) 
header.d=gluet.ch header.b="MMOtADS9"

or just missing this algorithm in spamassassin ?
i see no errors, just room for more supported algo :)