Heinen signed a professional tryout agreement with Boston on Tuesday.

Chiasson signed a professional tryout agreement with Boston on Monday.

Farinacci inked a two-year, entry-level contract with Boston on Wednesday.

Swayman was awarded a one-year, $3.475 million contract with Boston on Tuesday by an independent arbitrator, Elliotte Friedman of Sportsnet reports.

Frederic inked a two-year, $4.6 million contract with Boston on Tuesday, Elliotte Friedman of Sportsnet reports.

Walsh agreed to a one-year, two-way contract with Boston on Monday.

Regula inked a one-year, two-way contract with Boston on Monday.

DiPietro signed a one-year, two-way contract with Boston on Monday.

Boqvist signed a one-year, $775,000 contract with Boston on Wednesday, PuckPedia reports.

McLaughlin inked a one-year, two-way contract with Boston on Tuesday.

Mitchell agreed to a one-year, $775,000 contract with Boston on Monday, Elliotte Friedman of Sportsnet reports.

Lysell had a solid AHL rookie campaign with 14 goals, 37 points and 46 PIM in 54 contests with AHL Providence.