2.4

• Support poetry for for building this project

• Use secrets.SysRandom instead of random.SystemRandom if possible

• .get on Packets has an optional default parameter (to mimic dict.get())

• Fix: digestmod is not optional in python3.8 anymore

• Fix: authenticator was refreshed before the packet was generated

• Fix bug causing Message-Authenticator verification to fail if
  multiple instances of an attribute do not appear sequentially in
  the attributes list

• Fixed #140 VerifyReply broken when multiple instances of same attribute are
  not adjacent on reply

• Fixed #135 Missing send_packet for async Client

• Fixed #126 python3 support for SaltCrypt
  (was previously broken)

2.3

• Fixed #124 remove reuse_address=True from async server/client

• Fixed #121 Unknown attribute key error

2.2

• Add message authenticator support (attribute 80)

• Add support for multiple values of the same attribute (#95)

• Add experimental async client and server implementation for python >=3.5.

• Add IPv6 bind support for client and server.

• Add support of tlv and integer64 attributes.

• Multiple minor enhancements and fixes.

2.1

• Add CoA support (client and server).
• Add tagged attribute support (send only).
• Add salt encryption support (encrypt 2).
• Add ascend data filter support (human readable format to octets).
• Add ipv6 address and prefix support.
• Add support for octet strings in hex (starting with 0x).
• Add support for types short, signed and byte.
• Add support for VSA's with multiple sub TLV's.
• Use a different random generator to improve the security of generated packet ids and authenticators.