support for Blowfish $2y$10$

Hello,

does dovecot support bcrypt $2y$ version? (BLF-CRYPT - Blowfish crypt)

doveadm pw -s BLF-CRYPT generates a {BLF-CRYPT}$2a$05$....... password.

Does this mean that dovecote will not authenticate against a $2y$10$....... password?

Thanks in advance,

-Graham-