Context Free versions

v3.0.8.37 [May 10, 2011]
- Fixed: SVG files cannot be saved.
- Errors that occur during SVG file output are reported to the user. Previously they were silent.

v3.0 beta [Jan 25, 2012]
- Parameters for rules and paths (which can be numbers, shape adjustments, or shape specifications)
- Random number function that has a different value each time a rule is executed.
- Local and global variables
- Loop variables
- Loop finally blocks, executing code at the tail end of a loop
- Conditional expressions: the select() and if() functions. It works like the C ?: operator, but over multiple values
- Conditional code: switch statements and if statements
- Included files can be placed in their own namespace to prevent name collisions
- Numeric parameters are restricted to prevent creation of context-sensitive grammars
- The color target feature has been replaced with something that provides the same benefit but is less confusing.
- Shape time, allows you to specify which frames a shape is visible in during movie generation
- New FILL primitive shape, fills the canvas with the specified color at the specified Z. Similar to the background, but you can interleaves shapes and FILLs in Z.
- 16-bit color depth
- M, W: Compiler and run-time messages now have a window instead of flying by on the status bar
- M, W: Remembers window size
- time() function, allows shapes to change from frame to frame in a movie
- 64-bit
- User-defined functions
- More symmetry options: 1-dimensional tiling and frieze groups, rotational and dihedral symmetry

v2.2.2.21 [Apr 27, 2008]
Bug Fixes:
--M: Fix display error on Mac OS x 10.6 (Snow Leopard)
--M: Fix code for handling non-ASCII characters in file names.
--W: Restore Find/Replace function that was accidentally dropped in version 2.2
-- W: Remember window size.