0.30.0

CHANGES:

• Adopt the OCaml Code of Conduct on the repo (#426, @pitag-ha)

• Clean up misleading attribute hints when declared for proper context. (#425, @ceastlund)

• Ast_pattern now has ebool, pbool helper, and a new map.(#402, @Burnleydev1)

• multiple errors are now reported in metaquot. (#397, @Burnleydev1)

• Add Attribute.declare_with_attr_loc (#396, @dvulakh)

• Add "ns" and "res" as reserved namespaces(#388, @davesnx)

• Make quoter let binding non-recursive (#401, @sim642)

• Fix failure of 'lift_map_with_context' in traverse by compile-time
  evaluation of 'fst' and 'snd' (#390, @smuenzel)

• Driver: Bias the mapping from magic to version towards the current version,
  as it is usually the common case and it helps when magic numbers are
  ambiguous (such as on development versions) (#409, @shym)

• Remove unnecessary test dependencies towards base and stdio (#421, @kit-ty-kate)

• Update description to reflect that ppxlib contains more than a library
  (#422, @pitag-ha)

• Add support for OCaml 5.1, excluding OCaml 5.1.0~alpha1 (#428, @shym, @Octachron , @pitag-ha, @panglesd)

• Driver: Fix -locations-check option for coercions with ground (#428, @Octachron)