Erlang

Erlang was designed by Ericsson's Computer Science Laboratory.

The programming language consists of extensive libraries of code for building robust fault-tolerant distributed applications.

Erlang also doubles as a runtime system for running distributed, fault-tolerant, real-time and non-stop applications.

What is new in this release:

• 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

What is new in version 18.1:

• 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

What is new in version 18.0:

• 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

What is new in version 17.5:

• 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

What is new in version 17.4:

• 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

What is new in version R16A:

• Optimized handling of processes in the VM.
• New internal process table allowing for parallel reads and writes.
• Optimized run queue management.
• Optimized process state changes.
• "Non-blocking" code loading.
• New internal port table, and rewrite of scheduling of port tasks.
• Dynamic allocation of port structures, allowing the default for maximum ports to be raised to 65536 (from 1024).
• Support for UTF-8 encoded Unicode characters in source files.

What is new in version R15B02:

• CommonTest: It is now possible to sort the generated html tables. A Netconf client (ct_netconf) which support basic netconf over ssh is added
• Diameter: Statistics counters related to Diameter messages can now be retrieved by calling the diameter:service_info/2 function.
• Various smaller optimizations in the Erlang VM
• This release also contains 66 contributions from users outside the Ericsson team

What is new in version R15B01:

• Added Torbjorn Tornkvists LDAP client as a new application called eldap.
• Added options for the ssh client to support user keys files that are password protected.
• Added erlang:statistics(scheduler_wall_time) to ensure correct determination of scheduler utilization. Measuring scheduler utilization is strongly preferred over CPU utilization, since CPU utilization gives very poor indications of actual scheduler/vm usage.

What is new in version R15B:

• Line number and filename information are now included in exception backtraces. This information will be pretty-printed in the shell and used in crash reports etc. In practice it will be much easier to find where something failed.
• The driver interface has been changed to enable 64-bit aware drivers. Most importantly the return types for ErlDrvEntry callbacks 'call' and 'control' has been changed which require drivers to be changed.
• New in this release is the support for 64 bit Windows. The self extracting installer can be found here.
• CommonTest hooks are now in a final supported version.
• There is a new GUI tool in the observer application which integrates pman, etop, appmon and tv into one tool. The tool does also contain functions for activating tracing in an easy way.
• The Erlang distribution can now be run over the new SSL implementation.

What is new in version R14B04:

• This is R14B04, the fourth maintenance release for the R14B major release.

What is new in version R14B02:

• It is now possible to use Erlang specifications and types in EDoc documentation. Erlang specifications and types will be used unless there is also a function specification (@spec) or a type alias (@type) with the same name.
• From this release, the previously experimental halfword emulator is now official.
• All tests in Erlang/OTP have been converted to be run with Common Test as the backend instead of Test Server.

What is new in version R14B01:

• Switched from using the deprecated regexp to re instead.
• Fixed pretty rare crash when taking the infimum of two tuple_sets.
• Fixed some incomplete and erroneous specs in modules of kernel and stdlib.
• AES CTR encryption support in crypto.
• Fix format_man_pages so it handles all man sections and remove warnings/errors in various man pages.

What is new in version R14A:

• It is now possible for the user to provide specific callback modules that handle test configuration data, so that data on arbitray form can be accessed (e.g. by reading files or by communicating with a configuration server process).
• The module binary from EEP31 (and EEP9) is implemented.
• Send messages from a NIF, or from thread created by NIF, to any local process (enif_send).
• The run_test script has been replaced by a program (with the same name) which can be executed without explicit installation.