The coming PRO12 season will be former Springbok scrum-half Ruan Pienaar's final one for Ulster, the province has confirmed.
The club and the player were very keen for him to extend his stay in Belfast, with Operations Director Bryn Cunningham and Director of Rugby Les Kiss working with the IRFU over the past six months to reach a desirable outcome. Unfortunately, a contract extension was not possible due to the IRFU's succession policy.
Pienaar has scored 777 points in 118 competitive games for Ulster to date and he was a starring member of the squad that reached the 2012 Heineken Cup final.
"I am not moving on for a new adventure or for financial reasons. I wanted to stay and I know that Ulster Rugby did everything it could to keep me in Belfast. Ulster is special to me and my family now, and I would like to thank my wife, Monique, for coming here to support me and for helping to make it home for us," Pienaar told the Ulster website.
"I would also like to thank all of the players and staff at Ulster Rugby, the supporters and the general public, for their support and encouragement since our arrival. It has been brilliant to see the progress that the organisation has made in recent years, particularly with the new facilities here at Kingspan Stadium. The club has given me a lot and I'd like to be in a position to give something back in the future if possible.
"I have many great memories of my time here and I have made some brilliant friends within rugby and outside of it. It is sad that this will be my last season as an Ulster player but I will be doing everything to ensure that we make it a successful campaign."
Kiss was understandably disappointed with the outcome: "Ruan has been an outstanding servant to Ulster Rugby over the past six years and he will be a huge loss for us next season. For me, he is a fantastic player, but he is an even better person, who is much-loved by his team-mates, the staff and management, and the wider rugby community here in Ulster.
"His influence within the squad, both on and off the field, is truly remarkable; whether that is through match-winning contributions, or mentoring the promising players coming through our pathway. Indeed, he has played a big part in helping us to develop a large group of talented young backline players who have gone on to represent Ireland in recent years.
"He is a consummate professional and I have absolutely no doubt that he will give everything to the Ulster cause for the rest of the season. Our hope is that he will one day return to the Province to continue to have a positive impact on rugby in Ulster."