One or more ELSEIF clauses may now be inserted into an extended IF/ELSEIF/ELSE/ENDIF statement (in /RC or /X:2 modes), e.g.:
IF <expr1> THEN
<statements>
ELSEIF <expr2> THEN
<statements>
ELSEIF <expr3> THEN
<statements>
ELSE
<statements>
ENDIF
Previously, to accomplish the same thing you would have had to use nested IF/ELSE/ENDIF clauses, e.g.:
IF <expr1> THEN
<statements>
ELSE
IF <expr2> THEN
<statements>
ELSE
IF <expr3> then
<statements>
ELSE
<statements>
ENDIF
ENDIF
ENDIF
The ELSEIF version is mainly just cleaner and easier to follow.
