the second release of Word for Macintosh

There was no Word 2.0 for Macintosh. Instead, the second release of Word for Macintosh, shipped in 1987, was named Word 3.0; this was Microsoft's first attempt to synchronize version numbers across platforms. Word 3.0 included numerous internal enhancements and new features including the first implementation of the Rich Text Format (RTF) specification, but was plagued with bugs. Within a few months Word 3.0 was superseded by Word 3.01, which was much more stable. All registered users of 3.0 were mailed free copies of 3.01, making this one of Microsoft's most expensive mistakes up to that time.