Derbyshire have signed South Africa leg-spinner Imran Tahir as an overseas player for the 2017 season.
Essex have signed South Africa Test off-spinner Simon Harmer on a one-year deal for next season.
Australian wicketkeeper-batsman Cameron Bancroft will return to Gloucestershire next summer.
Leicestershire have signed former South Africa U19 batsman Colin Ackermann on a two-year contract.
Durham's future as a financially viable club is a step closer after the county council agreed to a "rescue package".
Former New Zealand and India coach John Wright is to return to Derbyshire as a specialist T20 coach.
Samit Patel will take part in the impending Bangladesh Premier League, despite the PCA's advice to stay at home next month.
Kent head coach Jimmy Adams is leaving the club to return to Jamaica.
Kent have written to the ECB asking for independent arbitration of the decision to re-instate Hampshire into County Championship Division One.
Kent all-rounder Darren Stevens has signed a new contract which will keep him with the county until the end of next summer
Lancashire have announced that Luke Procter and Matthew Parkinson have signed new two-year deals at the club.
Surrey players Rory Burns, Ben Foakes and Sam Curran have signed new three-year contracts until the end of the 2019 season.
It's been a dream season for Ben Duckett that has won him an England call-up, but how has the youngster reached this point?
Surrey duo Gareth Batty and Arun Harinath have signed new two-year contracts with the county.
Gloucestershire seamer Matt Taylor has signed a two-year contract extension until the end of 2019.
Derbyshire have signed former Lancashire all-rounder Luis Reece on a two-year contract.
Batsman Luke Wells has signed a new two-year contract with Sussex to continue his time at the club.
Somerset director of cricket Matthew Maynard has extended his contract to 2019.
Kent will seek legal advice after the ECB chose to reinstate Hampshire in Division One next season.
Gloucestershire all-rounder Benny Howell is set to travel to the Bangladesh Premier League next month.