v1.8.0

• update grammar

v1.7.5

• fix issue metanorma/iso-tc184-sc4-directives#3

v1.7.4

• fix processor

v1.7.3

• fix issue #83
• add ruby 3.0 support

v1.7.2

• fix issue relaton/relaton-cli#88

v1.7.1

• fix issue relaton/relaton-models#26

v1.7.0

• bump new version

v1.6.0

• fix issue relaton/relaton-bib#34

v1.6.pre1

• fix issue relaton/relaton-bib#34

v1.5.0

• fix issue relaton/relaton-bib#31
• bump new version