Upgrade notes for SimpleSAMLphp 1.18
====================================

The minimum PHP version required is now PHP 5.6.

### Deprecations

* The use of the PHP `memcache` extension was deprecated in favour of `memcached`.
In order to keep using memcache functionality you have to move to the PHP `memcached` extension,
which is available from PECL; see https://pecl.php.net/package/memcached. The former is considered abandoned
and it's safe use can no longer be guaranteed.

  There are a few options here:
   - Depending on your distribution, the package may just be available for you to install
   - You could use the package from the REMI repository if you're on RHEL; https://rpms.remirepo.net/
   - Download the source from https://pecl.php.net/package/memcached and compile the source as a PHP-extension manually;
     https://www.php.net/manual/en/install.pecl.phpize.php
 
* Support for SAML1.1 / Shibboleth 1.3 will be discontinued in a future release.
* The class `SimpleSAML\Auth\TimeLimitedToken` is now deprecated and will be removed in a future release
  If your custom module relies on this class, be sure to make a copy into your repository and
  make sure to also copy the unit tests that come along.
* Setting `privacypolicy` in metadata files will be removed in a future release. It was only used
  by the consent module, which supports `UIInfo`'s `PrivacyStatementURL`.
  See https://simplesamlphp.org/docs/stable/simplesamlphp-metadata-extensions-ui on how to configure this.