[erlang-questions] [ANN] Erlang/OTP 17.0-rc1 has been released.

Daniel Goertzen <>
Sat Feb 1 16:58:01 CET 2014


Excellent!

I have been using maps from Egil's branch for a while now and map pattern
matching has proven to be very useful.  Going back to not having maps would
be *very* hard.

Regarding dirty schedulers:

- Just to confirm my understanding: When I use the dirty scheduler API I
can write NIFs that grind the CPU or wait on IO for minutes at a time,
right?

- When using the API you have to indicate if you are IO or CPU bound.  What
is the consequence of getting that wrong (ie, you are CPU bound when you
said you would be IO bound or vice versa.)

- Are dirty schedulers a stepping stone to native processes?


For what I use Erlang for, R17 is probably the biggest release in the 9
years or so that I have been watching Erlang.  Fine work, and many thanks.

Cheers,
Dan.


On Fri, Jan 31, 2014 at 3:51 PM, Kenneth Lundin <>wrote:

> Erlang/OTP 17.0-rc1 has been released.
>
> This is an alpha release, which will be followed by a planned beta release
> about a month later and a final
> OTP 17.0 product release in the end of March 26, 2014.
> Between the alpha and beta and final release there will be new updates of
> the master branch with corrections
> and minor new features. Occasionally there might be new tags which we in
> that
> case will communicate and ask you to test.
>
> Erlang/OTP 17.0 is a new major release with new features, quite a few
> (characteristics) improvements,
> as well as some incompatibilities. See the README file and the
> documentation for more details.
>
> We would like to ask you to download and test the alpha release and send
> us your feedback as soon as possible,
> so that we can make the necessary corrections before OTP 17.0-rc2 and OTP
> 17.0, respectively.
> The release contains many changes; thus, some unexpected incompatibilities
> or issues may have slipped through
> our tests. Please try to build and run your current products/applications
> and let us know about any problems.
>
> Note! The new datatype MAP is not properly documented yet but the EEP 43
> http://www.erlang.org/eeps/eep-0043.html
> will provide a good start. Also note that it is a limited implementation
> of maps implemented so far:
>
>     - no variable keys are allowed
>     - native code can not be generated for modules using maps
>
> Some other highlights of the release are:
>
>     - 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, semantic version scheme for OTP and its applications
>
> You can find the README file with more detailed info at
>
>   http://www.erlang.org/download/otp_src_17.0-rc1.readme
>
> You can download the full source distribution from
>
>   http://www.erlang.org/download/otp_src_17.0-rc1.tar.gz
>   http://www.erlang.org/download/otp_src_17.0-rc1.readme (this file)
>
> Note: To unpack the TAR archive you need a GNU TAR compatible program.
>
> For installation instructions please read the README that is part of the
> distribution.
>
> You can also find this release at the official Erlang/OTP Git-repository
> at Github here:
>
>   https://github.com/erlang/otp tagged *OTP_17.0-rc1*
>
>
> The Windows binary distribution can be downloaded from
>
>   http://www.erlang.org/download/otp_win32_17.0-rc1.exe
>   http://www.erlang.org/download/otp_win64_17.0-rc1.exe
>
>
> On-line documentation can be found at http://www.erlang.org/doc/.
> You can also download the complete HTML documentation or the Unix manual
> files
>
>   http://www.erlang.org/download/otp_doc_html_17.0-rc1.tar.gz
>   http://www.erlang.org/download/otp_doc_man_17.0-rc1.tar.gz
>
> We also want to thank those that sent us patches, suggestions and bug
> reports.
>
> The Erlang/OTP Team at Ericsson
>
>
>
> _______________________________________________
> erlang-questions mailing list
> 
> http://erlang.org/mailman/listinfo/erlang-questions
>
>
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