Prior to version 1.0, MIME::Base32 used the base32hex (or [0-9A-V]) encoding and decoding methods by default. If you need to maintain that behavior, please call encode_base32hex or decode_base32hex functions directly.
Now, in accordance with RFC-3548, Section 5, MIME::Base32 uses the encode_base32 and decode_base32 functions by default.