UPDATED 06:40 14th July 2014
Jones arrived at Fratton Park in June 2014, signing a three-year deal with the Blues.
He was available as a free agent after leaving Crawley at the end of the previous campaign.
The goalkeeper made 105 appearances for the Sussex side and was ever-present in 2013/14 as the Red Devils finished 14th in League One.
He also turned out for both Exeter and Peterborough after coming through the ranks at Leyton Orient.