Title: admin-functions.php is deprecated since version 2.5! Error Last modified: August 21, 2016 --- # admin-functions.php is deprecated since version 2.5! Error * Resolved [Patabugen](https://wordpress.org/support/users/patabugen/) * (@patabugen) * [12 years, 4 months ago](https://wordpress.org/support/topic/admin-functionsphp-is-deprecated-since-version-25-error/) * I’m using Version 5.2.4 of Mail on Update and WordPress 3.8.1 is giving me the following error: * `admin-functions.php is deprecated since version 2.5!` * I believe from `mail-on-update.php:124` * I can post a stack trace/other info if you need. * [http://wordpress.org/plugins/mail-on-update/](http://wordpress.org/plugins/mail-on-update/) * Easily fixed by editing line 124 to: * `@require_once ( ABSPATH . 'wp-admin/includes/admin.php');` Viewing 1 replies (of 1 total) * Plugin Author [foobar2022](https://wordpress.org/support/users/kubi23/) * (@kubi23) * [12 years, 4 months ago](https://wordpress.org/support/topic/admin-functionsphp-is-deprecated-since-version-25-error/#post-4557170) * Thanks! Fixed in 5.2.5! Viewing 1 replies (of 1 total) The topic ‘admin-functions.php is deprecated since version 2.5! Error’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/mail-on-update_efefef.svg) * [Mail On Update](https://wordpress.org/plugins/mail-on-update/) * [Support Threads](https://wordpress.org/support/plugin/mail-on-update/) * [Active Topics](https://wordpress.org/support/plugin/mail-on-update/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/mail-on-update/unresolved/) * [Reviews](https://wordpress.org/support/plugin/mail-on-update/reviews/) ## Tags * [admin-functions](https://wordpress.org/support/topic-tag/admin-functions/) * 1 reply * 2 participants * Last reply from: [foobar2022](https://wordpress.org/support/users/kubi23/) * Last activity: [12 years, 4 months ago](https://wordpress.org/support/topic/admin-functionsphp-is-deprecated-since-version-25-error/#post-4557170) * Status: resolved