This release included a new, very fast minimization algorithm, a
new --jlex option for strict compatibility to JLex, support for
even larger scanners (up to 64K DFA states), faster character
classes, a new %apiprivate switch that causes all generated
and skeleton methods to be made private, and user defined
javadoc class comments. %eofclose isnow turned off if it was
previously turned on (e.g. by %cup). A number of internal
enhancements were made and rigorous testing was performed.