Which major brand identity change did Guinness World Records implement in 2019 that broke their own record for most comprehensive brand redesign?

The Guinness World Records brand is recognized globally as the authority on record-breaking achievements. Since its inception in 1955, the brand has undergone several transformations to maintain its relevance while preserving its legacy of documenting extraordinary human accomplishments. Test your knowledge about this iconic brand's identity evolution through the decades!

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They introduced 'Improbability' as their new slogan and redesigned their logo with an augmented reality component viewable in 32 languages simultaneously
They rebranded from 'Guinness World Records' to 'GWR' with a logo featuring 63 different record-breaking elements hidden within the design
They launched a living logo that changes daily to showcase a new world record, with over 500 variations in the first year
They created the world's largest crowd-sourced logo design with input from record holders across 100 countries