Attacker Odin Bailey, whose professional deal was due to expire this summer, has been offered a two-year deal.
Bailey went away on tour with the First Team to Austria and Germany in pre-season.
After recovering from injury, a loan spell with Gloucester City did wonders and he returned to train and play purposefully for the Under-23s in the past couple of months.
Defender Geraldo Bajrami, the current Under-23s captain, has also been offered a two-year contract.
Bajrami, who has been called up by Albania Under-21s, has developed his centre-half partnership with Joe Redmond this season – and Redmond’s approach and consistency has also been rewarded with the offer of a two-year deal.
Another member of the Under-23s defensive line, right-back Remeao Hutton, has been offered a two-year contract.
One-year offers have been made to winger Olly McCoy and goalkeepers Jake Weaver and Adam Siviter.
As the Club continues to assess carefully its needs and the requirements in the group one step away from Garry Monk’s First Team squad, inevitably difficult decisions are going to be made.
Blues have opted to release striker Kyle McFarlane and defender Josh Martin, two of the Under-23s regulars in recent seasons, at the expiry of their contracts.
Martin spent just under five months out on loan at Hungerford Town in the National League South, before returning to Blues earlier this month.
Defenders Dominic Bernard, who is currently at Aldershot in the National League, and Kieron Dawes have not been offered new deals, and it has been decided to release attacking midfielder Tommy Anderson in the summer too.
Wales Under-19 international midfielder Ryan Stirk still has another year on his contract, plus a 12-month option.