Leicestershire batsman Matthew Boyce and fast bowler Ollie Freckingham have agreed new contracts with the club.
Josh Cobb has become the latest player to leave Leicestershire after he signed a two-year contract with Northants.
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.
Surrey kept alive their faint hopes of promotion after earning maximum batting points against leaders Worcestershire.
Leaders Worcestershire endured a testing opening day as they were dismissed for 272 against Surrey at New Road.
Leicestershire are to release seamer Anthony Ireland and top-order batsman Michael Thornely at the end of this season.
Lancashire have signed England Lions seamer Nathan Buck from Leicestershire.
Matt Coles and Sean Ervine each took three cheap wickets as Hampshire crushed Leicestershire by an innings and 34 runs.
Derbyshire have announced the signing of Leicestershire all-rounder Shiv Thakor on a two-year deal.
Worcestershire's clash against Derbyshire at Derby is firmly in the balance heading into the final day of play.
Derbyshire made life difficult for Division Two leaders Worcestershire on day two, while rain frustrated Hampshire.
Derbyshire's batsmen held up Division Two leaders Worcestershire, while Angus Robson and Chris Cooke hit maiden tons.
Derbyshire's home victory over Gloucestershire saw them qualify for the quarter-finals of the Royal London One-Day Cup.
Vote for your favourite catch in the NatWest T20 Blast so far from our spectacular short-list of five.
We take a look back at some of the highlights from previous Finals Days ahead of this year's event.
A brilliant innings by Richard Oliver failed to prevent Worcestershire's first Championship defeat of the season.
Leicestershire kept alive their hopes of a Royal London One Day Cup quarter-final with a 16-run win over Worcestershire.
Leicestershire chief executive Mike Siddall has announced he will stand down at the end of the season.
Batsman Angus Robson has signed a new one-year contract with Leicestershire.
Sussex defeated Somerset in the only one of six Royal London One-Day Cup fixtures to beat the bad weather on Sunday.
Yorkshire Vikings took control of Group A in the Royal London Cup with a three-wicket victory over Leicestershire Foxes.
Niall O'Brien's ton helped Leicestershire beat Hampshire by six wickets in a rain-hit Royal London One-Day Cup clash.
Leicestershire captain Ramnaresh Sarwan has been ruled out for the remainder of the season due to a back injury.
Wayne Madsen struck his second successive Royal London One-Day Cup ton in Derbyshire's Group A win over Leicestershire.