Erlang/OTP 19.0 is a new major release
OTP 19.0 Readme File
OTP 19.0 Source File
OTP 19.0 Windows 32-bit Binary File
OTP 19.0 Windows 64-bit Binary File
OTP 19.0 HTML Documentation File
OTP 19.0 Man Pages File
Some highlights of the release are:
- compiler, stdlib:
- New preprocessor macros ?FUNCTION_NAME, ?FUNCTION_ARITY
- New preprocessor directives -error(Term) and -warning(Term) to cause a compilation error or warning, respectively.
- gen_statem a new state machine behavior
- mnesia_ext: plugin of external storage solutions to mnesia
- crypto: uses EVP interface in OpenSSL resulting in generally better performance and support for HW acceleration
- ssh: performance improvements, uses the new gen_statem behavior
- ssl: enhanced error log messages
- dialyzer: the support for maps is very much extended both the type specification syntax and the type analysis.
- erlang:open_port(spawn, ...) 3-5 times faster
- tracing, extensive improvements (scalability, speed, match specifications on send/receive, support for lttng, ...)
- dirty schedulers improved
- per process configurable handling of message_queue
- fast loading of multiple modules
- max_heap_size process flag
Experimental support for Unix Domain Sockets
- and much more ....
You can find the Release Notes with more detailed info at
You find the source code at github.com
in the official Erlang repository.
Git tag OTP-19.0
You can also read the documentation on-line here:
(see the Release Notes mentioned above for release notes which
are not updated in the doc, but the new functionality is)
We also want to thank all of you that have contributed with new features, bug-fixes, suggestions and bug reports.
The Erlang/OTP Team at Ericsson
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.
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).