What's Changed

• Unsigned integers no wrap II by @Shaikh-Ubaid in https://github.com/lcompilers/lpython/pull/2189
• Added test based on basic_new_heap function by @anutosh491 in https://github.com/lcompilers/lpython/pull/2190
• Support ccall() for symengine and other libs by @Shaikh-Ubaid in https://github.com/lcompilers/lpython/pull/2196
• CI: make bash fail on errors by @Shaikh-Ubaid in https://github.com/lcompilers/lpython/pull/2194
• Handle reshape intrinsic initialization with FixedSizeArray by @Thirumalai-Shaktivel in https://github.com/lcompilers/lpython/pull/2197
• Added the llvm_sym backend for testing symbolic operations through the llvm backend by @anutosh491 in https://github.com/lcompilers/lpython/pull/2192
• Added tests based on basic_new_stack function by @anutosh491 in https://github.com/lcompilers/lpython/pull/2199
• C: Fix complex types by @Smit-create in https://github.com/lcompilers/lpython/pull/2193
• Synchronizing generics by @ansharlubis in https://github.com/lcompilers/lpython/pull/2181
• Use optimisation flags for C compiler in lpython decorator by @czgdp1807 in https://github.com/lcompilers/lpython/pull/2201
• Support different integers in chr() by @Shaikh-Ubaid in https://github.com/lcompilers/lpython/pull/2203
• Support function with no return type as callback by @Shaikh-Ubaid in https://github.com/lcompilers/lpython/pull/2207
• Add Callable type by @Smit-create in https://github.com/lcompilers/lpython/pull/2209
• Add dict.keys by @kabra1110 in https://github.com/lcompilers/lpython/pull/2023
• LLVM: Initial CPython Interop example by @Shaikh-Ubaid in https://github.com/lcompilers/lpython/pull/2211
• CI: Provide release flags, exclude -march=native by @Shaikh-Ubaid in https://github.com/lcompilers/lpython/pull/2212
• Add get_builder0 macro to declare auxiliary variables at entry point of functions by @czgdp1807 in https://github.com/lcompilers/lpython/pull/2205

Full Changelog: https://github.com/lcompilers/lpython/compare/v0.18.4...v0.19.0