106 lines
4.7 KiB
HTML
106 lines
4.7 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<!-- This manual describes ASDF, a system definition facility
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for Common Lisp programs and libraries.
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You can find the latest version of this manual at
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https://common-lisp.net/project/asdf/asdf.html.
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ASDF Copyright (C) 2001-2019 Daniel Barlow and contributors.
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This manual Copyright (C) 2001-2019 Daniel Barlow and contributors.
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This manual revised (C) 2009-2019 Robert P. Goldman and Francois-Rene Rideau.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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<title>Decoupled release cycle (ASDF Manual)</title>
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<meta name="description" content="Decoupled release cycle (ASDF Manual)">
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<link href="index.html" rel="start" title="Top">
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<link href="Concept-Index.html" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="What-has-changed-between-ASDF-1-ASDF-2-and-ASDF-3_003f.html" rel="up" title="What has changed between ASDF 1 ASDF 2 and ASDF 3?">
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<link href="Pitfalls-of-the-transition-to-ASDF-2.html" rel="next" title="Pitfalls of the transition to ASDF 2">
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<link href="ASDF-can-be-upgraded.html" rel="prev" title="ASDF can be upgraded">
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</style>
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</head>
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<body lang="en">
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<div class="subsection" id="Decoupled-release-cycle">
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<div class="header">
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<p>
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Next: <a href="Pitfalls-of-the-transition-to-ASDF-2.html" accesskey="n" rel="next">Pitfalls of the transition to ASDF 2</a>, Previous: <a href="ASDF-can-be-upgraded.html" accesskey="p" rel="prev">ASDF can be upgraded</a>, Up: <a href="What-has-changed-between-ASDF-1-ASDF-2-and-ASDF-3_003f.html" accesskey="u" rel="up">“What has changed between ASDF 1, ASDF 2, and ASDF 3?”</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<span id="Decoupled-release-cycle-1"></span><h4 class="subsection">13.3.10 Decoupled release cycle</h4>
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<p>When vendors were releasing their Lisp implementations with ASDF,
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they had to basically never change version
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because neither upgrade nor downgrade was possible
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without breaking something for someone,
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and no obvious upgrade path was visible and recommendable.
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</p>
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<p>With ASDF 2, upgrade is possible, easy and can be recommended.
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This means that vendors can safely ship a recent version of ASDF,
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confident that if a user isn’t fully satisfied,
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he can easily upgrade ASDF and deal
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with a supported recent version of it.
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This means that release cycles will be causally decoupled,
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the practical consequence of which will mean faster convergence
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towards the latest version for everyone.
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</p>
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</div>
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</body>
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</html>
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