The first 777-200 model first entered service in 1995. The stretched 777-300 was introduced in 1998. That model is longer. The longer-range 777-300ER and 777-200LR models entered service in 2004 and 2006, respectively. A freighter version, the 777F, first flew in 2008. Beginning in 2019, Boeing will deliver a new version of the 777, the 777X.