CLIUtils/CLI11 v2.6.2

on GitHub

This version adds C++20 modules support, additional controls for help output and
finer grained control for extras handling and prefix command operation. Fixes
compatibility issues with C++26 and Windows and a number of small issue with
help output and specific combinations of options and conditions.

Added

• Added C++20 modules support with new module files and tests. #1286
• Added configuration modes for extras handling: AssumeMultipleArguments and
  AssumeSingleArgument. #1270
• Added option for full install including impl headers with precompiled option.
  #1252
• Added improvements to prefix commands including PrefixCommandMode and
  separator specification. #1266
• Added controls for option name formatting in help output, allowing disabling
  of default values, flags, and type names. #1247
• Added refactor of Meson build system with updated version and new options.
  #1280
• Added support for Bazel 9. #1287
• Added module testing infrastructure. #1255

Changed

• Changed default to install impl headers even when precompiled option is
  selected. #1291
• Updated copyright dates to 2026. #1283
• Updated CI pipelines including Azure Pipelines and GitHub workflows.
  #1267, #1283
• Updated documentation and book chapters. #1250

Fixed

• Fixed extra spaces in option and app descriptions. #1295
• Fixed option searching to use fallthrough in parent apps. #1292
• Fixed C++26 template ambiguity for std::complex. #1278
• Fixed UTF-8 config filenames not supported on Windows. #1273
• Fixed enumeration stream output generating unconvertible strings if certain a
  user supplied stream conversion method was supplied #1261
• Fixed code simplification issues by removing use of static std::string which
  was causing some heap allocation issues when using CLI11 as part of DLL on
  certain operating systems #1244
• Fixed MISRACPP2023-25_5_2-a-1 rule violation #1299