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From: Alan Schmitt <alan.schmitt@polytechnique.org>
To: "lwn" <lwn@lwn.net>, "cwn"  <cwn@lists.idyll.org>, caml-list@inria.fr
Date: Tue, 12 Nov 2019 14:21:19 +0100
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Hello

Here is the latest OCaml Weekly News, for the week of November 05=20
to 12,
2019.

Table of Contents
=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=
=80

Mirage 3.7.1 released
Old CWN


Mirage 3.7.1 released
=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=
=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=
=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90

  Archive:=20
  <https://discuss.ocaml.org/t/mirage-3-7-1-released/4634/1>


Hannes Mehnert announced
=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=
=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=
=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80=E2=94=80

  MirageOS 3.7.1 is released to opam repository now.

  Breaking change:
  =E2=80=A2 The hooks previously defined in
    OS.Main.at_enter/at_enter_iter/at_exit/at_exit_iter are now=20
    part of
    Mirage_runtime (only used by mirage-entropy)
    <https://github.com/mirage/mirage/pull/1010>

  Behaviour changes of MirageOS unikernels:
  =E2=80=A2 A unikernel now always calls the Mirage_runtime.at_exit=20
  registered
    hooks =E2=80=93 once a unikernel succesfully executed its `start' in
    `Lwt_main.run', `exit 0' is called to ensure this behaviour
    <https://github.com/mirage/mirage/pull/1011>
  =E2=80=A2 Top-level exceptions are no longer caught (there used to be in
    mirage-unix/mirage-xen/mirage-solo5 custom handlers). The=20
    OCaml
    runtime prints the exception and backtrace on stdout and calls=20
    exit
    2 (from 4.10.0, abort() will be called).

  Deprecations (being removed from Mirage 4.0)
  =E2=80=A2 All Mirage_YYY_lwt are deprecated, Mirage_YYY interfaces are=20
  no
    longer astracted over 'a io and buffer. This reduces the=20
    amount of
    opam packages - mirage-yyy-lwt are no longer part of the=20
    release
    (each mirage-yyy package provides a Mirage_yyy_lwt module for
    backwards compatibility). Motivation was discussed in
    <https://github.com/mirage/mirage/issues/1004>
  =E2=80=A2 mirage-types and mirage-types-lwt are deprecated, please use=20
  the
    Mirage_YYY signatures directly instead.

  Other observable changes
  =E2=80=A2 `mirage configure' now deletes all exising opam files

  Most reverse dependencies are already released to opam, have a=20
  look at
  <https://github.com/mirage/mirage/issues/1012> for progress (and=20
  the
  temporary <https://github.com/mirage/mirage-dev.git#easy> opam
  overlay).


Old CWN
=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90=E2=95=90

  If you happen to miss a CWN, you can [send me a message] and=20
  I'll mail
  it to you, or go take a look at [the archive] or the [RSS feed=20
  of the
  archives].

  If you also wish to receive it every week by mail, you may=20
  subscribe
  [online].

  [Alan Schmitt]


[send me a message] <mailto:alan.schmitt@polytechnique.org>

[the archive] <http://alan.petitepomme.net/cwn/>

[RSS feed of the archives]=20
<http://alan.petitepomme.net/cwn/cwn.rss>

[online] <http://lists.idyll.org/listinfo/caml-news-weekly/>

[Alan Schmitt] <http://alan.petitepomme.net/>


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<body>
<div id="content">
<h1 class="title">OCaml Weekly News</h1>
<p>
<a href="http://alan.petitepomme.net/cwn/2019.11.05.html">Previous Week</a> <a href="http://alan.petitepomme.net/cwn/index.html">Up</a> <a href="http://alan.petitepomme.net/cwn/2019.11.19.html">Next Week</a>
</p>

<p>
Hello
</p>

<p>
Here is the latest OCaml Weekly News, for the week of November 05 to 12, 2019.
</p>

<div id="table-of-contents">
<h2>Table of Contents</h2>
<div id="text-table-of-contents">
<ul>
<li><a href="#1">Mirage 3.7.1 released</a></li>
<li><a href="#org38f05d0">Old CWN</a></li>
</ul>
</div>
</div>


<div id="outline-container-org103c498" class="outline-2">
<h2 id="1">Mirage 3.7.1 released</h2>
<div class="outline-text-2" id="text-1">
<p>
Archive: <a href="https://discuss.ocaml.org/t/mirage-3-7-1-released/4634/1">https://discuss.ocaml.org/t/mirage-3-7-1-released/4634/1</a>
</p>
</div>

<div id="outline-container-orgf457256" class="outline-3">
<h3 id="orgf457256">Hannes Mehnert announced</h3>
<div class="outline-text-3" id="text-orgf457256">
<p>
MirageOS 3.7.1 is released to opam repository now.
</p>

<p>
Breaking change:
</p>
<ul class="org-ul">
<li>The hooks previously defined in OS.Main.at_enter/at_enter_iter/at_exit/at_exit_iter are now part of Mirage_runtime (only used by mirage-entropy) <a href="https://github.com/mirage/mirage/pull/1010">https://github.com/mirage/mirage/pull/1010</a></li>
</ul>

<p>
Behaviour changes of MirageOS unikernels:
</p>
<ul class="org-ul">
<li>A unikernel now always calls the Mirage_runtime.at_exit registered hooks &#x2013; once a unikernel succesfully executed its <code>start</code> in <code>Lwt_main.run</code>, <code>exit 0</code> is called to ensure this behaviour <a href="https://github.com/mirage/mirage/pull/1011">https://github.com/mirage/mirage/pull/1011</a></li>
<li>Top-level exceptions are no longer caught (there used to be in mirage-unix/mirage-xen/mirage-solo5 custom handlers). The OCaml runtime prints the exception and backtrace on stdout and calls exit 2 (from 4.10.0, abort() will be called).</li>
</ul>

<p>
Deprecations (being removed from Mirage 4.0)
</p>
<ul class="org-ul">
<li>All Mirage_YYY_lwt are deprecated, Mirage_YYY interfaces are no longer astracted over 'a io and buffer. This reduces the amount of opam packages - mirage-yyy-lwt are no longer part of the release (each mirage-yyy package provides a Mirage_yyy_lwt module for backwards compatibility). Motivation was discussed in <a href="https://github.com/mirage/mirage/issues/1004">https://github.com/mirage/mirage/issues/1004</a></li>
<li>mirage-types and mirage-types-lwt are deprecated, please use the Mirage_YYY signatures directly instead.</li>
</ul>

<p>
Other observable changes
</p>
<ul class="org-ul">
<li><code>mirage configure</code> now deletes all exising opam files</li>
</ul>

<p>
Most reverse dependencies are already released to opam, have a look at
<a href="https://github.com/mirage/mirage/issues/1012">https://github.com/mirage/mirage/issues/1012</a> for progress (and the
temporary <a href="https://github.com/mirage/mirage-dev.git#easy">https://github.com/mirage/mirage-dev.git#easy</a> opam overlay).
</p>
</div>
</div>
</div>




<div id="outline-container-org38f05d0" class="outline-2">
<h2 id="org38f05d0">Old CWN</h2>
<div class="outline-text-2" id="text-org38f05d0">
<p>
If you happen to miss a CWN, you can <a href="mailto:alan.schmitt@polytechnique.org">send me a message</a> and I'll mail it to you, or go take a look at <a href="http://alan.petitepomme.net/cwn/">the archive</a> or the <a href="http://alan.petitepomme.net/cwn/cwn.rss">RSS feed of the archives</a>.
</p>

<p>
If you also wish to receive it every week by mail, you may subscribe <a href="http://lists.idyll.org/listinfo/caml-news-weekly/">online</a>.
</p>

<div class="authorname">
<p>
<a href="http://alan.petitepomme.net/">Alan Schmitt</a>
</p>

</div>
</div>
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