For those who registered a .CO.UK, .ORG.UK, .ME.UK, .NET.UK, .PLC.UK, or .LTD.UK domain prior to 29 October, 2013, they were given the right to register their domain’s .UK equivalent when the root .UK extension was released in 2014. For example, if you had registered yourname.co.uk, you had the rights to yourname.uk so no one else could register it.
As of 25 June 2019, this right to reserve is expiring and on 01 July 2019 all reserved .UK domains will be released to open registration for all those qualifying with the .UK presence requirements.
To anyone who’s put off registering their .UK domain, we recommend doing so prior to 25 June.
If you’re not sure if your .UK domain is involved, then please refer to the .UK’s help site on this. This page also has a FAQ section too.