South Africa international Marcell Coetzee will join Ulster at the end of the season on a three-year contract.
Australia openside flanker Liam Gill is to leave the Queensland Reds at the end of Super Rugby season and move to France.
Springbok Handre Pollard will miss nine months of rugby after rupturing knee ligaments in a freak training accident.
Japan hooker Shota Horie has been named captain of new Super Rugby franchise the Sunwolves.
New Zealand back-row forward Victor Vito will join Top 14 club La Rochelle next season.
New England coach Eddie Jones has offered to help out his old club, the Stormers, on an informal basis.
Waratahs captain Dave Dennis has joined Aviva Premiership title contenders Exeter Chiefs for next season.
Otago Highlanders coach Jamie Joseph will become the new Japan boss at the end of the 2016 Super Rugby season.
Australia flanker Michael Hooper has been named captain of the New South Wales Waratahs for the 2016 season, taking over from lock Dave Dennis.
Former All Blacks Nathan Mauger and Filo Tiatia have joined the Japan Sunwolves' coaching team.
Australia No 8 Wycliff Palu has rejoined the New South Wales Waratahs for the 2016 Super Rugby season.
London Irish have signed Hurricanes fly-half James Marshall on a deal from the start of the 2016-17 season.
Former New Zealand hooker Mark Hammett has been unveiled as the head coach of Japan's new Super Rugby side, the Sunwolves.
Stephen Moore has signed a new deal with the Australia Rugby Union after turning down offers from European clubs.
Australia captain Stephen Moore is to leave the Brumbies at the end of the 2016 season and rejoin the Queensland Reds.
Harlequins have signed Australian forward Beau Robinson with immediate effect.
Robbie Fleck has been appointed head coach of the Stormers for the 2016 Super Rugby season.
Brent Janse van Rensburg has resigned as head coach of the Southern Kings just two weeks after being appointed.
Fiji winger Nemani Nadolo has confirmed he will leave the Crusaders amid reports in France linking him with Montpellier.
SANZAR has revealed it will consider expanding into Europe over the next few years.