What did Charles II change?

Answer 1

'The King, in his Declaration, had promised liberty of conscience in matters of religion, and the examination by Parliament of all claims to land with contested titles. He had agreed to satisy the Army under General Monk with regard to their arrears of pay, and to give the same rank to officers when they entered the King's service.' - Page 57 of John Evelyn and his times - Beatrice Saunders - Pergamon Press - 1970

Cromwell banned theatre. Charles II brought theatre back but also allowed women to act for the first time.

'Charles did assent to the Second Test Act (1678) which excluded Catholics from either House of parliament.' Page 163 of Popery & Politics in England 1660-1688 - John Miller - 1973

'only two acts implementing legal reforms that the second Protectorate Parliament passed. In both cases the changes endured: although - like all ordinances passed since 1642 - they were declared null and void at the Restoration' Page 179 of Parliaments and Politics during the Cromwellian Protectorate - Patrick Little and David L. Smith - Cambridge studies in early modern british history

he helped found The Royal Society