I heard a rumour that Adnams have cut their ABV on their classic Southwold Bitter from 3.7% to 3.4%. If true, that is an accountant’s decision. It means the beer qualifies for a lower rate of duty – but it is unlikely to improve the taste.
A sad way for such a classic to be treated but I get the impression all Adnams cares about now is the remarkably successful Ghost Ship, their pale and hoppy beer, which I believe accounts for a huge amount of their production. Including the 0.5% alcohol version.