Shiv Chanderpaul will return to Lancashire for the 2018 season after signing a new one-year deal at Emirates Old Trafford.
Luke Procter has swapped Lancashire for Northamptonshire after signing a three-year deal at Wantage Road.
Essex defy the odds to romp to the County Championship title, beating Lancashire into second, but Durham's troubles persist.
2016 champions Middlesex have been relegated from the County Championship, with Somerset and Hampshire surviving.
Champions Essex ended the season unbeaten after smashing Yorkshire, as Somerset, Hampshire and Middlesex fight for survival.
Somerset have put themselves in a strong position to claim the win they need to stay in County Championship Division One after day two at Taunton.
Graham Onions has become the latest high-profile player to leave Durham after agreeing to join Lancashire on a two-year deal.
Andrew Flintoff has joined the Lancashire board and Paul Allott has been named Director of Cricket at the club.
England batsman Keaton Jennings has agreed a four-year deal with Lancashire after becoming the latest high-profile player to leave Durham.
Somerset reduced Middlesex to 18-3 after they were bowled out for 236 on day one of their must-win Division One clash.
Opening batsman Haseeb Hameed has suffered a fractured finger a week before England's Ashes squad is due to be announced.
Steve Finn swelled Middlesex's hopes of avoiding relegation by taking 8-79 in a 36-run win over Lancashire at Lord's.
Rory Kleinveldt bagged 9-65 for Northants in the Championship, while Surrey's Kumar Sangakkara scored yet another century.
Rikki Clarke took a career-best 7-55 but Somerset still managed to score 269 against Surrey thanks to Steven Davies' 86.
Warwickshire were relegated to County Championship Division Two as Somerset beat Lancashire to boost their own survival bid
Essex have won their first County Championship title since 1992 after challengers Lancashire crumbled to defeat at Somerset.
Somerset are closing in on a crucial victory in their fight for County Championship Division One survival.
Essex are closing in on the Specsavers County Championship title with Lancashire struggling against Somerset at Taunton.
Essex edged closer to the County Championship title after making a strong start to their match against Warwickshire at Edgbaston.
Haseeb Hameed missed out on a first Championship hundred of 2017, while Notts' unbeaten run is in jeopardy at Trent Bridge.
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