OTP 17.0 has been released!

OTP 17.0 Readme File

OTP 17.0 Source File (94687818)

OTP 17.0 Windows 32-bit Binary File (94687818)

OTP 17.0 Windows 64-bit Binary File (96087080)

OTP 17.0 HTML Documentation File (33168721)

OTP 17.0 Man Pages File (1353215)

Erlang/OTP 17.0 is a new major release with new features, characteristics improvements, as well as some minor incompatibilities. See the README file and the documentation for more details.

Some highlights of the release are:
  • Erlang/OTP has been ported to the realtime operating system OSE.
  • Maps, a new dictionary data type (experimental)
  • A more natural mapping from ASN.1 OCTET STRING and BIT STRING to Erlang types, and other ASN.1 improvements and optimizations
  • The {active, N} socket option for TCP, UDP, and SCTP
  • A new (optional) scheduler utilization balancing mechanism
  • Migration of memory carriers has been enabled by default on all ERTS internal memory allocators
  • Increased garbage collection tenure rate
  • Experimental "dirty schedulers" functionality
  • Funs can now be given names
  • Miscellaneous unicode support enhancements
  • A new version scheme for OTP its applications has been introduced

You can find more detailed info in the README file.

Compiling Erlang from source

You can build Erlang from source on your own, following the building and installation instructions. Or use the Kerl script. Kerl is a script that lets you easily build Erlang with a few commands. Follow the instructions to build.

Finding a source version

Follow this link that presents all released source versions, a link to the GitHub source tag, and to the README.

Pre-built Binary Packages

Most OS package managers provide pre-built binary packages. You can also download the latest stable releases from Erlang Solutions. Erlang Solutions provides pre-built binary packages for OS X, Windows, Ubuntu, Debian, Fedora, CentOS, Raspbian and other operating systems. 

  • For Homebrew on OS X: brew install erlang
  • For MacPorts on OS X: port install erlang
  • For Ubuntu and Debianapt-get install erlang
  • For Fedorayum install erlang
  • For FreeBSDpkg install erlang


Since OTP 18.0, Erlang/OTP is released under Apache License 2.0. The older releases prior to 18.0 were released under Erlang Public License (EPL), a derivative work of the Mozilla Public License (MPL).