As the new decade dawns, stay up to date with the latest player signings, moves and speculation from all the counties as we await the 2020 campaign.
Counties can field one overseas player in County Championship and One-Day Cup matches, and two in T20 Blast games.
Guide to abbreviations
Also shows, where relevant, players' previous counties
KPK: Kolpak contract
YTH: From youth teams
EUP: European Union passport
UKP: Born overseas, but has UK passport
Kolpak contracts are signed by foreign players, using a European Court ruling to avoid counting against the quota of one overseas player per club. Following the UK's exit from the European Union, Kolpak registrations will be terminated at the end of the 2020 season, but some Kolpak players may remain in county cricket as overseas players.
Players who moved counties or retired during the 2019 season are included on the 2019 list. Have we missed anyone? Please let us know.
Other news: New signing Handscomb will be captain in the Championship and One-Day Cup, with Eoin Morgan taking the T20 role. At the end of the 2019 season, Ireland internationals must either re-register as overseas players or relinquish their international careers to remain in county cricket as local players. While Stirling is leaving, Tim Murtagh has committed to the club, ending his Ireland career.
Overseas player 2019: Jason Holder (West Indies); Temba Bavuma (South Africa); Faheem Ashraf (Pakistan); Dwaine Pretorius (South Africa); Doug Bracewell (New Zealand)
Other news: Assistant first-team coach and bowling lead Phil Rowe has retired. His bowling responsibilities will be taken up by Gloucestershire fast bowler Chris Liddle, who has retired from playing to take up the role, while John Sadler will become assistant first-team coach, leaving the same role at Leicestershire.
Overseas player 2019: James Pattinson (Australia); Dan Christian (Australia); Ravichandran Ashwin (India); Imad Wasim (Pakistan)
Other news: Assistant coach Alan Richardson will lead the club in the One-Day Cup while head coach Alex Gidman is with The Hundred side Birmingham Phoenix. He will be assisted by Kadeer Ali, who has rejoined the Worcestershire as Second XI coach, having previously been a player with the club. Meanwhile chief executive Matt Rawnsley has stepped down.
Overseas player 2019: Keshav Maharaj (South Africa); Nicholas Pooran (West Indies); Ajaz Patel (New Zealand)