February 24, 2018:

• Added support for multiple threads to speed up rendering on systems with multi-core processors.
• Fixed animation to prevent rapid divergence of fractals. The program has been tested successfully with ~4000 frames.
• Added unused "UK" variation to source code. The UK variation simply converges points to the shape of the letters "UK". An example of the variation in use can be found here

Older changes are not listed here.