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.
Swindon assistant manager Fabrizio Piccareta claimed the club's backroom staff were all set to resign in the morning despite a 3-1 victory over Tranmere taking them to the top of League One.
Manager Paolo Di Canio quit on Monday citing off-field problems at the club and Piccareta revealed after the victory at Prenton Park the technical staff would follow suit.
Piccareta, who was put in charge for the trip to Tranmere, was adamant it would be his final game.
"After this game, this fantastic game that everyone has witnessed, I want to tell you that this is our last game as technical staff of this football club," said Piccareta
"I want to highlight one thing. This achievement that this fantastic team got tonight, so top of the league and this victory has a name, and a surname and that is Paolo Di Canio.
"People must know that yesterday he released a statement at 7pm, but until 5pm yesterday afternoon we were together preparing for this game as usual, in the best professional way.
"And I just spoke to Paolo because he just rang me to congratulate us and the players because he is absolutely happy of what his team has achieved.
"From tomorrow, I don't know what is going on with Swindon Town Football Club but this was a very important moment to say thanks to the Swindon Town fans that are amazing.
"Tomorrow morning we will resign because we are here for Paolo Di Canio and we will follow Paolo Di Canio everywhere. Even if he will coach Real Madrid or Luton Town."