Tom Starling has announced he will leave Canberra before completing the final year of his contract, amid reports linking him to Super League club St Helens.
The 28-year-old hooker spent the second half of the season behind Owen Pattie.
Parramatta, meanwhile, have retained Samoan Rugby League World Cup co-captain Junior Paulo through 2027, after he was linked with the Perth Bears.
The Raiders have extended Ethan Sanders' deal to the end of 2028, securing the 22-year-old beyond November 1, when he could have negotiated with rival clubs.
Sanders won NRL Rookie of the Year after a breakout season, having entered it with only four first-grade appearances and following Jamal Fogarty's move to Manly.
Coach Ricky Stuart gave Brisbane recruit Coby Black the No. 7 jersey for Canberra's final game; Black scored 26 points, setting a premiership debut record unmatched in 118 years.
Black's contract also ends in 2028, extending the contest for the starting halfback role.
"Two years ago, the club put a lot of faith in me to bring me down to Canberra. I can't thank Ricky enough for all the belief he's given me, and I just want to repay that now," Sanders said.
"To win the Rookie of the Year was a huge surprise, but it's a testament to the players I have around me."