- Add type annotations: [type] statement
- Add type definitions: [[name] type], [[name] := statement]
- Add type annotations example (08)
- add Quickstart.md, reference it from README
- some small bugs are now fixed
- include comments in error messages (if this causes issues, use --hide-comments)
- colors should make more sense now
- error-related things moved to mers_lib/src/errors/
&v = (v, 1).sum might fail if two threads do it at the same time or something, so you can now lock the reference to ensure no other thread messes with your data while you update its value