v0.2.0

• Added support for HEREDOCs (#45)
• Fixed an issue where whitespace after a line continuation causes parsing to fail (#26)
• Fixed parsing a port range (#27)
• Allow capital letters in user names (#35)
• Added support for single-quoted strings (#37)
• Fixed an issue where ADD and COPY only accepted a single parameter (#43)

v0.1.2

• ADD and COPY now support more than one argument
• ENV keys can consist of only a single character
• Comments immediately after a RUN command don't break parsing

v0.1.1

• Update the grammar to not use "extras" tokens in rules. #6

v0.1.0

Initial release with solid basic parsing support