Yes, there have been a number of drastic, complicated and varying changes coming into effect over the last 18 months.
Landlords
Prior to the 6th April 2016 landlords who rented their properties furnished were able to claim a 10% wear and tear deduction (based on rental income) to offset against property income, even if no maintenance had occurred. From 6th April 2016 (2016/17) this has been abolished, landlords are now only allowed to claim the exact cost of maintenance which they can prove has taken place.
Shareholders / Company directors
Prior to the 6th April 2016, director shareholders, would extract a mixture of salaries and dividends with a higher skew towards dividends as these have a much lower tax rate of tax with a generous 0% band and also do not attract national insurance (which is effectively just additional income tax under a different name. The result was the ability to extract approximately £40,000 from a Company without having to pay any personal tax.
These dividend rules have now been changed, from 6th April 2016 (2016/17) the tax rates for dividends have been increased. Now there is a £5,000 tax free dividend allowance but dividends in the basic rate tax band are taxed at 7.5%, and upwards from there as you earn more to 32.5%, 38.1%. See here