0.32:
  * Require C++17 standard
  * Add arguments checks
  * Replace asprintf with multiplaform solution
  * Fix forcing DPI (`-D` switch)
  * Fix build systems and improve Github Action
  * Fix memmory leaks

0.31: (2026-04-21)
  * Fix undefined bit shifting behavior in jbig2arith.cc
  * Free resources also when not in symbol mode
  * Fix memory leak in unite_templates()
  * Fix end segment page number in jbig2enc.cc
  * Fix issue writing invalid jbig2 data for files that use per-page symtabs (#121)
  * Add version info about leptonica and available image libs
  * Add Github action for autotools (g++ and clang++) and msys2
  * Add Meson build system and GHA workflows
  * Add formatting rules
  * Add CI release workflow
  * Improve installation instructions and configure test for leptonica
  * Enable wildcard globbing for MSVC built jbig2 executable (#108)

0.30: (2024-12-24)
  * Reject odd input depths that pixThresholdToBinary doesn't support.
  * Fix build with Leptonica >=1.83
  * Replace vs2008 solution with CMake
  * Fix `Error heap-use-after-free`
  * Fix typos in code
  * Support python 3, drop support for python2
  * Rename pdf.py to jbig2topdf.py
  * Add `-D` switch to set dpi for images w/o dpi information
  * Add support for standalone .jb2
  * Suppress a chatty informational message unless requested
  * Neat symbolic threshold 0.92
  * Fix Endian issue on ARM #63
  * Neat symbolic threshold 0.92
  * Make the weight parameter adjustable
  * Add global BW threshold on 8 bpp images
  * Replace obsolete macro `AC_PROG_LIBTOOL'

0.29 (2017-01-30)
  * fix build with leptonica>=1.70
  * Remove incorrect reference count update.

0.28 (2012-09-19):
  * Update to the latest Leptonica (1.68)
  * autotools support, VC++ 2008 solution
  * fix binary file open mode on Windows
  * version info (-V --version)
  * pdf.py now correctly retains DPI from input images (thanks to Steven Lee
    http://blog.rubypdf.com/2011/09/09/jbig2-pdf-py-patch-the-right-way-to-get-dpi/)
  * R. Hatlapatka: option to use autoThresholding. Improved version from
    bachelor thesis JBIG2 compression http://is.muni.cz/th/208155/fi_b/.

0.27 (2009-04-29):
  * Update to the latest Leptonica (1.58)
  * Fix comments in pdf.py (thanks Dan)

0.26:
  * Update to the latest Leptonica (1.53)

0.25:
   * Should build on Windows if you get a leptonica which does so (thanks to
     Dwight Kelly and a man known only as Dennis)

0.24:
   * Update to leptonica 1.38
   * Add ability to gray symbols but it's commented out because it does little
     good
   * Refinement support broke because of memory savings in leptonica

0.23:
   * Quick release to support leptonica 1.37 (now bundled)

0.22:
   * Added segmentation support to extract text from mixed images
   * Flyspeck removal disabled for now
   * A few minor fixes

0.21:
   * Patch from Alberto Accomazzi to fix the pdf.py script and to output more
     sensible filenames in pdf mode
   * Symbols which are only used once are now included in a per-page dictionary
     (great for scans of old books)
   * Fixed several scale bugs (one at 65K symbols and one at 100K symbols)
   * Page numbers > 256 went wrong
