The UK and the European Union on Saturday published the agreement they reached on Christmas Eve on their post-Brexit trade relations, which is expected to come into effect on Jan. 1 after the end of the Brexit transition period. David Frost, Britain’s chief Brexit negotiator, announced the publication of the EU-UK Trade and Cooperation Agreement on Twitter on Saturday morning, with a link to the text of the agreement published on the UK government website. Roughly at the same time, Michel Barnier, the EU’s chief negotiator, announced on Twitter the publication of the text on the EU’s website, calling it “the result of many months of intensive and dedicated work.” Michael Gove, Britain’s cabinet office minister, said on Saturday that the deal “fulfils the pledges” pro-Brexit politicians made during the 2016 referendum. “We can now embark on a new, more hopeful, chapter in our history,” said Gove, who was one …