Ultra Fractal 6.03 release notes

Ultra Fractal 6.03, released on September 4, 2020, is a free update for Ultra Fractal 6. It contains bug fixes and small improvements and is a recommended update for all Ultra Fractal 6 users.

What's new in Ultra Fractal 6.03?

  • Added support for Dark Mode on macOS Mojave and Catalina.
  • Fixed problems with exporting as a Quicktime movie on macOS Catalina.
  • Changed the default syntax highlighting colors in the formula editor so all elements look good both in light and dark user interface modes.
  • Fixed a bug that could cause unfinished strips to appear in the final image when using multi-pass or guessing, especially when using many calculation threads.
  • Fixed a possible crash when using formula plug-ins in arbitrary precision mode.
  • Fixed a bug when dragging a layer group to another fractal window: if the layers within the group were selected as well, they would be copied twice.
  • Fixed a bug that caused the precision setting to be ignored for fractal formulas. Added precision=4 setting to the Julia/Newton formula in Standard.ufm because it turns out they need a little more precision than Mandelbrot-type formulas. Otherwise the calculation doesn't go to extended or arbitrary precision mode as needed when zooming in.
  • Fixed a bug that could cause far too many vertical strips to be created in the fractal window when using a high number of calculation threads in combination with certain image widths.
  • Fixed a bug that caused accented letters (e.g. for the author name or in the comments field) to be saved incorrectly on Mac.
  • Fixed a bug that caused the log function to return NAN when used with a large number (> 1e308) in arbitrary precision mode.
  • Fixed a bug that could cause a crash in the Modified Perlin Texture trap shape in reb.ulb.
  • Small bug fixes and improvements.


Download Ultra Fractal 6.03

Buy online

You can purchase Ultra Fractal 6 in the online shop. Users of Ultra Fractal 5 and earlier versions can purchase an upgrade for a reduced price.

For technical support, you can contact the author of Ultra Fractal via e-mail at .


Applies To

Ultra Fractal 6.03


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