- The minimum required Qt version is now 5.15.
- Support compilation with Qt 6.
- The desktop version now always displays the manual with an external browser, which removes the dependency on the Qt WebView library and the compilation option PENTOBI_OPEN_HELP_EXTERNALLY.
- The Qt SVG library is no longer needed.
- Loading game files in encodings other than UTF-8 is no longer supported.
- Complete Russian translation of the manual.
Signed-off-by: Algent Albrahimi <email@example.com>