The 2019-20 Premiership season will start with Bristol hosting West Country rivals Bath on Friday, 18 October.
Scrum-half Charlie Mulchrone signs a short-term deal with Harlequins, which will then see him move into coaching after the World Cup.
Harlequins prop Joe Marler comes out of international retirement and is named in England's Rugby World Cup training squad.
Harlequins sign Fiji internationals Vereniki Goneva and Tevita Cavubati from Newcastle Falcons for 2019-20.
Audio & Video
Harlequins captain Rachael Burford and Saracens skipper Lotte Clapp look ahead to the inaugural Premier 15s final.
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