# Version history ## Libucl 0.5 - Streamline emitter has been added, so it is now possible to output partial `ucl` objects - Emitter now is more flexible due to emitter_context structure ### 0.5.1 - Fixed number of bugs and memory leaks ### 0.5.2 - Allow userdata objects to be emitted and destructed - Use userdata objects to store lua function references ### Libucl 0.6 - Reworked macro interface ### Libucl 0.6.1 - Various utilities fixes