[3] For this reason, Heroku is said to be a polyglot platform as it has features for a developer to build, run and scale applications in a similar manner across most of these languages.

[4] Heroku was initially developed by James Lindenbaum, Adam Wiggins,[5] and Orion Henry[6] for supporting projects that were compatible with the Ruby programming platform Rack.

Later on, Heroku faced setbacks because of a lack of proper market customers as many app developers used their own tools and environment.

[15][16] Heroku confirmed that the attack accessed OAuth bearer tokens used for integration with GitHub and salted and hashed customer passwords in May 2022.

[17] In August 2022, Heroku announced that its free plans would be discontinued, citing fraud and abuse as reasons for the change.