version 4.4.0

Added

• Add toml::find_or_default() (#280) (by Ken Matsui @ken-matsui)
• Add erase to ordered_map (#282) (#283) (by Sunlight @SunPodder)
• Add bool basic_value::accessed() const to detect whether the value has been accessed
  • enabled only if TOML11_ENABLE_ACCESS_CHECK is defined
• Add compare operators to toml::spec

Fixed

• Use is_void<T> instead of is_same<T, void> (#281) (by Ken Matsui @ken-matsui)

Changed

• Improve toml::parse performance by 2x
• Stop using deprecated Ubuntu 20 image on GitHub Actions