N3024ET-ON RSA Key Length

I've got an N3024ET-ON it's running firmware version 6.5.2.35 (I do need to update it!)

My question is when I generate the crypto keys with crypto key generate rsa it creating a key of length 1024 despite firmware version 6.5.1.1 claiming the key length is now 2048.

Will later versions generate a 2048 key (or longer)? None of the release notes for versions after 6.5.1.1 mention the key length.

And no there is NO parameter on this switch to specify the RSA key length as there is on other devices.