9.2

Support for comments. (Using #)

9.1

• Added the -p command line option.

  Expressions from -p come first, then expressions from -f, and finally those from the command line.
  If -p is set, the default prelude will be overwritten. (The default prelude is def $ index.@)

9.0

• Added string interpolation with `${...}` syntax.
• Defined the $ function to be index.@ by default. (For easier indexing of arrays and tuples.)
• Added the unflatten function.
• Expanded debug output when the -vv command-line option is used.
• Added another variant for the glue function.
• Fixed parsing precedence for $.

8.0

• Added the implicit function call syntax using $. $a is equivalent to $(@, a); the function $ must be first defined.
• Added a two-argument version of if.
• Added syntactic sugar for filtering sequences; [/ a] is equivalent to [try if(a, @)].