Reading pair Sean Morrison and Jordan Obita have both signed new contracts at the Madejski Stadium.
Ipswich defender Aaron Cresswell has signed a two-year extension to his contract.
Jose Angel will spend a second season on-loan at Real Sociedad after the Basque outfit agreed a deal with parent club Roma.
The left-back spent last term with La Real, making 11 appearances, and will now remain in northern Spain.
The 23-year-old moved to Serie A from Sporting Gijon in 2011 but has found first-team opportunities hard to come by in the Italian capital.