chrome version release date
// This calculation is near accurate
// This is only for developer
// Chrome version ——> relese year
relese_year = 2010 + chrome_version / 8
// Example: Chrome version = 75.0
// relese_year = 2010 + (75.0 / 8) = 2019.375
// ~= mid of May 19 [Actual is start of June 19]
// relese year ——> Chrome version
chrome_version = (relese_year - 2010) * 8
chrome_version = last_digit of year * 8