WordPress is 15 this week: here’s every version from 1.0 to 4.9

Source: https://managewp.org/articles/17456/wordpress-is-15-this-week-here-s-every-version-from-1-0-to-4-9

source https://williechiu40.wordpress.com/2018/05/22/wordpress-is-15-this-week-heres-every-version-from-1-0-to-4-9/