.. include:: /Includes.rst.txt

.. _introduction:

============
Introduction
============

.. _what-it-does:

What does it do?
================

This extension provides support for Universally Unique Identifiers (UUIDs) in TYPO3.

From Wikipedia:

.. epigraph::

   A universally unique identifier (UUID) is a 128-bit label used for information in computer systems.

   -- https://en.wikipedia.org/wiki/Universally_unique_identifier

With the help of this extension, a UUID can be added to possibly every record in TYPO3.
This allows for e.g. safely identifying records that were added by a migration
(in contrast to their ``uid``,
which depends on the time of execution of the migration,
which will be different in each instance like development, stage and production).


Change Log
==========

Version 0.4.0
-------------

Compatibility with TYPO3 v12 and v13. Earlier versions are not supported anymore.

Version 0.3.0
-------------

Allow resolving multiple UUIDs in the TypoScript function ``uuid``, separated by commas.

Version 0.2.2
-------------

Fixed version constraint in ``ext_emconf.php``.