MATLAB: Can I find out in which release a function was introduced

Question

Sometimes I get error messages saying stuff like:

Undefined function 'savefig' for input arguments of type 'char'

or

Undefined function or variable 'parfeval'

How can I know in which release a function became available? I know this page contains release notes, but it's quite cumbersome to find when a specific function was released. (I know I need the Parallel Computing Toolbox for parfeval)

Note that this question is not about those two specific functions, but any and all functions that have been introduced later than say R2007a.

Answer 1

I wrote a function that can give you the version a function was released. You can find it here. Try it.