The comments below are automatically extracted from the beginning of the
NEWS document.

4.2.0 (2024-02-05)

• Add the JAS_PACKAGING option to the CMake build in an attempt to allow
  easier control over rpath settings by packagers of JasPer.
• Remove a number of obsolete scripts.
• Make some cosmetic changes to the code for the JPC codec in order
  to improve readability (#371).
• Fix a portability bug related to threads/atomics.
• Replace some lingering uses of strtok in the JPC coder with jas_strtok,
  since the use of strtok is problematic in multithreading contexts.