<?xml version="1.0" encoding="utf-8"?>

<appendix xml:id="migration81" xmlns="http://docbook.org/ns/docbook">

<title>Migrating from PHP 8.0.x to PHP 8.1.x</title>

<para>

This new minor version brings with it a number of

<link linkend="migration81.new-features">new features</link> and a

<link linkend="migration81.incompatible">few incompatibilities</link>

that should be tested for before switching PHP versions in production

environments.

</para>

<para>

&manual.migration.seealso;

<link linkend="migration71">7.1.x</link>,

<link linkend="migration72">7.2.x</link>,

<link linkend="migration73">7.3.x</link>,

<link linkend="migration74">7.4.x</link>,

<link linkend="migration80">8.0.x</link>.

</para>

&appendices.migration81.new-features;

&appendices.migration81.new-classes;

&appendices.migration81.new-functions;

&appendices.migration81.constants;

&appendices.migration81.incompatible;

&appendices.migration81.deprecated;

&appendices.migration81.other-changes;

</appendix>

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