OTP R16B03 has been released!

OTP R16B03 Readme File

OTP R16B03 Source File (95075401)

OTP R16B03 Windows 32-bit Binary File (95075401)

OTP R16B03 Windows 64-bit Binary File (96266239)

OTP R16B03 HTML Documentation File (33287369)

OTP R16B03 Man Pages File (1322484)


  • A new memory allocation feature called "super carrier" has been introduced. It can for example be used for pre-allocation of all memory that the runtime system should be able to use. It is enabled by passing the +MMscs (size in MB) command line argument. For more information see the documentation of the +MMsco, +MMscrfsd, +MMscrpm, +MMscs, +MMusac, and, +Mlpm command line arguments in the erts_alloc(3) documentation.
  • The ldap client eldap now supports the start_tls operation. This upgrades an existing tcp connection to encryption using tls, see eldap:start_tls/2 and /3.
  • The ftp client (inets application) now supports ftp over tls (ftps).
  • Approximately 50 user contributions. Many thanks for that!

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.

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).

Available releases

PDF files are included in the Windows installer and in the HTML documentation tarballs, starting with the R13B03 release.

There is a file containing MD5 checksums for all files in the download directory, also reachable through rsync