Wappler 2.1.6 Security

Hi,
Great to have you back! Hope you enjoyed the break.
Can you please elaborate on the new update “Improved Wappler security”, is it a critical update to apply on our websites in production or just a nice to have?
I am asking as I have some websites in production on 2.1.5 and I want to avoid updating them and doing regression testing each week unless for critical updates.
Thank you in advance