This does seem to be the case, from the verge:
The UK government will keep a record of every website every citizen visits for up to a year, with this information also including the apps they use on their phone, and the metadata of their calls. This information is known as internet connection records, or ICRs, and won’t include the exact URL of each site someone visits, but the base domain. For this particular webpage, for example, the government would know you went to www.theverge.com, the time you visited, how long you stayed, your IP address, and some information about your computer — but no individual pages.
Ah cool!