Changes in version 2025-07-11 (2025-07-11)               

  - [enhance] Bump ZAP_VERSION to 2
      - Added 2 more bytes to header.
      - The first byte is a byte for flags
      - The second bytes is currently unused
      - Only one flag bit currently used:
          - flag to indicate if the writing process made use of list
            references.
  - [enhance] VECSXP (lists and data.frames) can now also be cached by
    setting list = 'reference'. This is not done by default as tracking
    VECSXPs can be costly during both writing and reading.
  - [enhance] Environment cache now uses a hashmap
  - [bugfix] proper initialization of LGLSXP. bug introduced in
    changeover to new 1-bit handling

               Changes in version 2025-07-02 (2025-07-02)               

  - Initial release

                     Changes in version 0.1.1.9002                      

  - [9002] [bugfix] 2025-07-12 Fix objdf allocation bug
  - [9001] [enhance] 2025-07-12 return a data.structure detailing the
    objects which have been serialized when verbosity = 64 set
  - [9000] [refactor] 2025-07-12 tidy VECSXP to separate functions for
    'raw' and 'reference' handling.