https://www.bbc.com/news/articles/cd1jxmrk11yo

Eligible prisoners serving more than five years can now be automatically released after only 40% of their fixed-term sentence, rather than the usual 50%.

Sex offenders, and those serving sentences of four years or longer for serious violent offences, are not included.

Those convicted of domestic abuse and what the government calls "connected crimes", such as stalking, and controlling or coercive behaviours are also excluded.

We all know sex offences and domestic abuse crimes area the two types of crime that most unfairly discriminate against men. Why do those happen to be exempt? Just more discrimination against men in a gynocentric society.