They won't transfer the visa. You show the old passport and get stamped in on the new passport if your getting a new passport in the UK.
You'll need to carry the old passport all the time the visa is valid. Visas are never transferred. Only entry stamps, extensions of stay and reentry permits are transferred
Michael Boyton everybody is panicking in what to do next. At the same time, best to remember this little snippet of information relating from the cabinet meeting in April.
One thing IS for sure. There is a whole new ball game opening up when it comes to being able to fly to Thailand with remarks in a passport or on a visa.