Posted by naruse on 25 Dec 2016 We are pleased to announce the release of Ruby 2.4.0. Ruby 2.4.0 is the first stable release of the Ruby 2.4 series. It introduces many new features, for example: Introduce hash table improvement (by Vladimir Makarov) Improve the internal structure of hash table (st_table) by introducing open addressing and an inclusion order array. This improvement has been discuss