diff --git a/config/defaults.inc.php b/config/defaults.inc.php
index d5f0f36d13..0701a22cd7 100644
--- a/config/defaults.inc.php
+++ b/config/defaults.inc.php
@@ -656,7 +656,6 @@
 $config['session_path'] = null;
 
 // Session samesite. Defaults to PHP session.cookie_samesite setting.
-// Requires PHP >= 7.3.0, see https://wiki.php.net/rfc/same-site-cookie for more info
 // Possible values: null (default), 'Lax', or 'Strict'
 $config['session_samesite'] = null;
 
@@ -1103,7 +1102,7 @@
   // Note: To enable TLS use tls:// prefix
   'hosts'         => array('directory.verisign.com:389'),
   'ldap_version'  => 3,       // using LDAPv3
-  'network_timeout' => 10,    // The timeout (in seconds) for connect + bind attempts. This is only supported in PHP >= 5.3.0 with OpenLDAP 2.x
+  'network_timeout' => 10,    // The timeout (in seconds) for connect + bind attempts.
   'user_specific' => false,   // If true the base_dn, bind_dn and bind_pass default to the user's IMAP login.
   // When 'user_specific' is enabled following variables can be used in base_dn/bind_dn config:
   // %fu - The full username provided, assumes the username is an email
diff --git a/plugins/password/README b/plugins/password/README
index c7d7abffbd..e455db9db4 100644
--- a/plugins/password/README
+++ b/plugins/password/README
@@ -366,7 +366,6 @@
 
  Modified version of ldap_simple.
  Password is changed using ldap_exop_passwd operation.
- PHP >= 7.2 required.
 
 
  2.1.24 TinyCP
diff --git a/plugins/password/drivers/ldap_exop.php b/plugins/password/drivers/ldap_exop.php
index cac93bc1fd..00cef47931 100644
--- a/plugins/password/drivers/ldap_exop.php
+++ b/plugins/password/drivers/ldap_exop.php
@@ -6,7 +6,6 @@
  * Driver for passwords stored in LDAP
  * This driver is based on Simple LDAP Password Driver, but uses
  * Password Modify Extended Operation
- * PHP >= 7.2 required
  *
  * @version 1.0
  * @author Peter Kubica <peter@kubica.ch>
diff --git a/plugins/zipdownload/README b/plugins/zipdownload/README
index e343398c38..a12349cb27 100644
--- a/plugins/zipdownload/README
+++ b/plugins/zipdownload/README
@@ -7,7 +7,6 @@ download of a selection of messages in 1 zip file.
 Requirements
 ============
 * php_zip extension (including ZipArchive class)
-  Either install it via PECL or for PHP >= 5.2 compile with --enable-zip option
 
 License
 =======