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.
Anton Ferdinand has left struggling QPR to join Turkish side Bursaspor on loan until the end of the season.
The 27-year-old joined the Hoops from Sunderland in 2011 but, after impressing last season, he has struggled for form this term.
Ferdinand has made 16 appearances in all competitions for QPR this campaign but has now swapped west London for Turkey.
The defender completed his medical with Bursaspor on Monday and it's understood the loan has been agreed with a view to a permanent move.
The Turkish side already employ England international goalkeeper Scott Carson and signed Stoke midfielder Maurice Edu on loan earlier this month.