Your Heroku applications run on top of a curated stack, containing the operating system and other components needed at runtime. We maintain the stack - updating the OS, the libraries, and ensuring that known security issues are resolved, so that you can focus on writing code.

Today we're announcing the general availability of Heroku-16, our curated stack based on Ubuntu 16.04 LTS. In addition to a new base operating system, Heroku-16 is updated with the latest libraries. If you’re a Ruby or Python developer, Heroku-16 includes 15% more development headers at build time, making it easier to compile native packages on Heroku. Finally, Heroku-16 offers a better local development...


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