Aberdeen will sign striker Miles Storey when his contract at Sky Bet League One club Swindon ends this summer.
Scott Brown, Michael Rose and David Goodwillie are among the players to depart Aberdeen at the end of the season.
Aberdeen's season ended on a low note as they lost 4-0 at home to Ross County, while Hearts drew 2-2 with St Johnstone at Tynecastle.
Aberdeen manager Derek McInnes paid tribute to his side despite the 4-0 defeat to Ross County at Pittodrie.
Aberdeen slipped to their second home defeat of the season as Hearts' Abiola Dauda grabbed the winner at Pittodrie.
Aberdeen have unveiled plans for a £40m stadium and training facility, with the Dons aiming to play there by 2019-20.
Celtic secured their fifth consecutive league title with a 3-2 victory over nearest rivals Aberdeen at Celtic Park on Sunday.
Gordon Strachan has rested Celtic and Aberdeen players from his current Scotland squad to allow them to prepare for European ties.
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