The Court of Appeal judgement said that Paul Chambers' tweet was not "menacing" and the message "lacked the characteristics required for the purposes of this offence".
More top news
Man's best friend really does understand some of what we are saying, scientists are suggesting.
Selena Gomez said she was taking time out to deal with panic attacks and depression thought to be a side effect of her lupus disease.
Temperatures will be highest in the southeast, reaching a high of 24 Celsius (75F) here.