<P> The first season of the series , consisting of three episodes , was released on August 7 , 2015 . On April 6 , 2016 , Netflix announced that the series has been renewed for its second and third seasons . The second season was released on August 12 , 2016 , and the third season was released on October 14 , 2016 . Both consisted of six episodes . An extended 34 - minute Valentine 's Day special was released as the first and only episode of the fourth season on February 14 , 2017 . A fifth season consisting of five episodes was released on September 15 , 2017 . The sixth season is scheduled to be released on November 7 , 2017 . </P>
<P> The first season of the series , consisting of three episodes , was released on August 7 , 2015 . On April 6 , 2016 , Netflix announced that the series has been renewed for its second and third seasons . The second season was released on August 12 , 2016 , and the third season was released on October 14 , 2016 . Both consisted of six episodes . An extended 34 - minute Valentine 's Day special was released as the first and only episode of the fourth season on February 14 , 2017 . A fifth season consisting of five episodes was released on September 15 , 2017 . The sixth season is scheduled to be released on November 7 , 2017 . </P>
when is part six of project mc2 coming out
when is part six of project mc2 coming out
November 7 , 2017
November 7 , 2017