Anton Bresler and recent Lions debutant Allan Dell have signed new contracts with Edinburgh.
Edinburgh Rugby have completed the signing of former Junior All Black Robbie Fruean from Bath.
Champions Cup holders Saracens will face Clermont Auvergne, Ospreys and Northampton Saints in next season's pool stages.
Scarlets and Exeter dominate after they triumphed in the PRO12 and Premiership finals.
Scotland prop Simon Berghan has signed a two-year contract extension with Edinburgh.
Edinburgh upset a planned Glasgow parade to honour Gregor Townsend and Sean Lamont with a 29-18 win at Scotstoun.
Munster make up more than a third of the Guinness PRO12 team of the season with six of their players included.
John Hardie has signed a new one-year deal with Edinburgh.
Upgrade now for an unmissable summer
Catch the action - watch instantly from £6.99
Win in our free to enter competitions section
We've a host of top class rugby union action
Goals, highlights, previews and more...