1.1

• Clarified BRE vs ERE difference for line anchor escaping
• Added workaround for epub version for iBooks
• For more detailed view of changes, see the commit changes for the markdown source file

1.0

• Added exercises
• GNU awk version updated to 5.1.0
• Role of IGNORECASE for FS, FPAT and RS
• Alternation priority for same length matches
• Using escape sequences for regular expression metacharacters
• Corrected multiline code snippets and added chapter sub-headings for clarity
• Added gotcha for using code in replacement section of substitution functions
• Corrected various typos, improved descriptions/comments/examples/etc
• Added epub version of the book
• For more detailed view of changes, see the commit changes for the markdown source file

0.7

• First version