What makes this 1.0? 

• After more than 20 years of development the program is finally accurate enough for historical application.
• This is the first release based on the Qt6 framework, so the project is safe for future development. These packages are tagged with a version number like 1.22.3.
• We keep releasing Qt5-based packages for legacy or obsolete systems. This may include many Windows users who have to run ANGLE mode. These packages are tagged with a version number like 0.22.3.

What is new for users?

• A new, much better skylight model (Not for MacOS and OpenGL ES2 systems, sorry.)
• Many details around eclipses
• Updated Observation List features
• New features in AstroCalc tool
• HiDPI improvements
• Better dithering
• Able to use Windows location service (Windows)
• New skyculture: Samoan
• Updated several skycultures
• Updates in Angle Measure, Satellites, Oculars, Remote Control, Pulsars plugins
• Many more bugfixes.