The County Championship will see three teams promoted and one relegated next year to create a 10-team top tier from 2020.
Somerset leg-spinner Max Waller signs a new two-year deal to play white-ball cricket at Taunton.
Former England batsman Nick Compton, who has had spells at Somerset and Middlesex, announces his retirement.
Craig Overton takes a hat-trick - the second by a Somerset bowler in two days - as they beat Notts by an innings.
Audio & Video
England spinner Jack Leach talks to BBC Points West about his journey in cricket, from a trip to Taunton as a newborn to his Test recall.
Analysis and opinion from the BBC's cricket correspondent.
How to follow cricket on the BBC
BBC Sport brings you live radio commentary from England's Test series against India.
Cricket alerts, newsletters and social media
Get latest scores and headlines sent straight to your phone, sign-up to our newsletter and learn where to find us on online.
How to get into cricket
How to get into cricket - physical exertion with a chess-like element in matches which range from half an hour to five days.