All-rounder Matt Coles has rejoined former club Kent following his release by Hampshire.
Kent all-rounder Darren Stevens went through two years of "hell" before being cleared of corruption charges.
County champions Yorkshire begin their title defence against Worcestershire on the opening day of the 2015 season.
Spinner James Tredwell will remain with Kent beyond the end of the 2015 season.
Keep up to date with all the county cricket signings and departures ahead of the 2015 season.
Geraint Jones has joined Gloucestershire on a two-year contract and been appointed the club’s captain.
Kent head coach Jimmy Adams has extended his contract with the county, while Rob Key has been re-appointed captain.
Kent have confirmed the signing of batsman Joe Denly who returns to his home county from Middlesex.
Hampshire and Worcestershire clinched promotion as Leicestershire propped up the rest again
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Gloucestershire finished their LV= County Championship season on a high with an emphatic 244-run win over Kent.
Jeetan Patel has been named county cricket's Most Valuable Player, according to the FTI rankings.
Hampshire beat Glamorgan by 291 runs to seal promotion and the LV= County Championship Division Two title.
Hampshire moved closer to securing promotion,after dominating the second day of their clash with Glamorgan.
Essex dominated the opening day against Worcestershire as Hampshire hit back after a disastrous start at Sophia Gardens.
Nine members of Kent’s squad have signed contract extensions with the county.
Will Smith's unbeaten 142 saved Hampshire from possible defeat by Kent on the final day at the Ageas Bowl.
Promotion contenders Hampshire had to follow-on despite Sean Ervine's 121 on day three against Kent in Southampton.
Hampshire were favourites to secure promotion, but Kent's resistance and an Essex win have complicated matters.
Jesse Ryder claimed career-best first-class bowling figures to keep Essex in contention for promotion in Division Two.