v1.5.0

• Added: serialise subclasses of float and bytes
• Added: serialise subclasses of int and str
• Added: include position and context in str(StructuredFieldError)
• Changed: report Binary Sequence padding errors at the first rejected byte
• Changed: report an over-long Decimal fraction at its first excess digit
• Changed: report Invalid UTF-8 in a Display String at the bad sequence
• Changed: report a Non-integer Date at the period, not after the number
• Changed: report Binary Sequence alphabet and Boolean errors at the offending byte
• Changed: check parse() input type up front
• Fixed: offending_char is set whenever there is a byte at position
• Fixed: reject non-str keys in ser_key with TypeError
• Fixed: serialise Token values wrapping a str subclass from the underlying str
• Fixed: keep InnerList params across copy(), + and *
• Fixed: serialise str-subclass parameter keys from their value
• Fixed: reject Integers longer than 15 characters as RFC 9651 section 4.2.4 requires
• Fixed: itemise values passed to compat List and InnerList extend and +=
• Fixed: make Date parsing independent of the platform's C library
• Fixed: accept unpadded, partially padded and over-padded Byte Sequences
• Fixed: serialise bare True dictionary members as the key alone
• Fixed: escape input bytes in error messages