As we've only got 6 months before the UK ends its membership of the EU, things are hotting up.
I've just come across this ETIAS system the EU is planning to roll out for visa-free countries. This has implications not just for British but also anyone else planning to visit an EU country, including Hungary.
ETIAS - 7 EUR application fee for a 3 year permission to visit the EU - applies to US, Canadian, Australian, NZ citizens too.
Media rumour has it that the UK will implement a reciprocal system for EU member state citizens but not 3rd country nationals - if ETIAS is imposed on British citizens.
The ETIAS thing is modelled on the US and Canadian systems.