OXFORD United have signed goalkeeper George Long from Sheffield United on loan until January.
The 20-year-old became the youngest ever player to turn out for the Blades when he made his league debut in 2011.
Two years later he was selected in England's Under-20 squad for the World Cup and he has gone on to cement himself as a regular for the England Under-21s.
Despite his age, the youngster has already played 73 games for Sheffield United but has appeared just once since February, with Mark Howard preferred by boss Nigel Clough.
Oxford face Burton Albion in their League Two opening fixture on August 9 and manager Michael Appleton said: "George is very highly rated and has been part of the England set-up so we are very excited to have him here.
"He is tall, he communicates well and likes to command his box. We now have two young keepers who will push each other."
Dagenham & Redbridge have signed veteran striker Jamie Cureton on a one-year deal.
The 38-year-old had been on trial following his release by Cheltenham, and scored against Cheshunt in a pre-season friendly.
He made his professional debut for Norwich back in 1994 before returning to the East Anglian club in 2007.
Cureton has more than 250 league goals during a career spanning 21 years which includes a Championship Golden Boot award, and has played in all four top-flight English Leagues. Other previous clubs include Bristol Rovers, Reading and Exeter.
Luton midfielder Jake Howells has signed a new two-year deal with the club.
The 23-year-old has made nearly 300 appearances since coming through the ranks at Kenilworth Road, scoring 25 times.
Last season he played 36 games and netted on eight occasions as he helped the Hatters storm to the Conference Premier title.
Forward Ashley Grimes has left Bury by mutual consent. The 27-year-old played 18 times last season and leaves after a year at the club.