Version 2.5: Help Formatter This version add a new formatter with improved control capabilities and output aligned with standards for help output. It also add a modifier to enable use of non-standard option names. Along with several bug fixes for edge cases in string and config file parsing. Better help formatter #866, this better aligns the help generation with UNIX standard and allows use in help2man. #1093 Add mechanism to allow option groups to be hidden and all options be considered part of the parent for help display #1039 Add a modifier to allow non-standard single flag option names such as -option. #1078 Add modifier for subcommands to disable fallthrough which can resolve some issues with positional arguments #1073 Add some polish to config file output removing some unnecessary output and add modifier to control output of default values #1075 Add the ability to specify pair/tuple defaults and improved parsing #1081 Bugfix: Take the configurability of an option name into account when determining naming conflicts #1049 Bugfix: Fix an issue where an extra subcommand header was being printed in the output #1058 Bugfix: Add additional fuzzing tests and fixes for a bug in escape string processing, and resolve inconsistencies in the handing of {} between command line parsing and config file parsing. #1060 Bugfix: Improve handling of some ambiguities in vector input processing for config files, specifically in the case of vector of vector inputs. #1069 Bugfix: Fix an issue in the handling of uint8_t enums, and some issues related to single element tuples #1087 Bugfix: Fix an issue with binary strings containing a \x #1097 Bugfix: Move the help generation priority so it triggers before config file processing #1106 Bugfix: Fixed an issue where max/min on positionals was not being respected and optional positionals were being ignored #1108 Bugfix: Fix an issue with strings which started and ended with brackets being misinterpreted as vectors. The parsing now has special handling of strings which start with [[ #1110 Bugfix: Fix some macros for support in C++26 related to wide string parsing #1113 Bugfix: Allow trailing spaces on numeric string conversions #1115 Docs: Update pymod.find_installation to find python in meson.build #1076 Docs: Add example for transform validators #689 Docs: Fix several spelling mistakes #1101 Backend: Update copyright dates to 2025 #1112 Backend: Update CMAKE minimum version to 3.10 #1084