If legislation changes while isolating on return from France

BobbyGil

Situation: Recently returned from Italy via Channel Tunnel on a continuous drive from Italy, so didn't stop [apart from for fuel] in France. Still have to isolate for 10 days with testing required. My wife and I are double vaccinated, daughter is single vaccinated. Cant find advice anywhere on-line.
Question: If the scenario changes in the near future, as expected, for France and the requirements for isolation disappears. Do we continue our 10 days of isolation or are we released from our duties?
If somebody with expertise or relevant knowledge can speculate as to what our duties will be based on the above, or comment after the announcement, we would be very grateful.
Apologies for copying this post from another board, as I realised it was probably posted on the wrong board

Caz3121

similar question here https://forums.moneysavingexpert.com/discussion/6287277/quarantine-arrangements-for-eu-double-vaccinated-persons-who-flew-in-on-friday#latest

Sandtree

Depends on the exact wording of the legislation but generally speaking all changes to date have been for people that arrive on or after X date. So if the rules change on day 2 of your isolation you still have to do the other 8 days even though someone arriving that day wouldn't have to isolate at all.

BobbyGil

Thanks Caz3121. The rules appear to be clear and unfortunately that means that we are isolating for the full 10 days