3.2.0

• Added limits to pure Python record and metadata decoding to prevent denial
  of service from crafted databases: 65,536 values, 512 nesting levels, and
  2 MiB of string and bytes payload. Exceeding a limit raises
  InvalidDatabaseError. CPython may reach its recursion limit earlier,
  which raises the same error.
• Rejected unsigned integers longer than 16 bytes and signed integers longer
  than 4 bytes before reading their payload.
• Updated the vendored libmaxminddb to 1.14.0, which adds the same resource
  limits to the C extension.
• Truncated reads that previously raised IndexError or struct.error
  now raise InvalidDatabaseError.
• The pure Python reader now rejects invalid search tree sizes when opening
  a database.
• Improved pure Python lookup performance.