v2.30.1 (27 July 2022)

• Improved the pedantic mode warning for parameters without priors. The message now highlights when it is safe to ignore it.
• Fixed a bug in the memory pattern optimization where a for loop generated for the function inliner would prevent detection of for loops higher in the control flow graph.
• Fixed an issue with the function inliner when a function local variable had the same name as a variable in the calling scope.
• Fixed an issue where recursive functions which called themselves with a slice of their arguments would lead to infinite template expansion in C++ compilation.
• Fixed a bug in stanc.js where the stanc flags were not listed correctly in the generated C++.
• The imaginary components of complex vectors and matrices are now initialized to NaN to match the real component and behaviour of non-complex vectors and matrices.