Self employed mortgages after governement changes

I understand that the government as improved things somewhat for mortgage market, providing cheaper money to mortgage lends and new rules to help with deposits.

My question is directed to mortgages for the self employed.

1. Are lenders now relaxing criteria for the self employed? e.g. for income multiples, what constitutes proof of earnings etc.

2. Are the rules for deposits applicable for the self employed too? Was it just for new builds or something?

Thanks,

Steve