For anyone concerned about travel to our conference:

“If the UK leaves the EU with a deal, what you’ll need to enter the UK will not change until 2021. […]

If the UK leaves the EU without a deal

If you’re an Irish citizen, you’ll be able to enter the UK without a visa, as you can now. […] You’ll be able to enter the UK without a visa if you’re a citizen of any other EU or EEA country, or Switzerland.”