Just wanted to raise two separate incidents that have been reported to me by two separate users on meta.wikimedia.org after the 1.18 upgrade:
1) A user was attempting to look at all of the translations for a particular banner in CentralNotice (a common task carried out with no issue prior to the upgrade) when he saw this error: PHP fatal error in /usr/local/apache/common-local/php-1.18/extensions/CentralAuth/CentralAuth.i18n.php line 19586: Allowed memory size of 125829120 bytes exhausted (tried to allocate 7864320 bytes)
2) Another user was attempting to move a page on Meta when she saw this:
PHP fatal error in /usr/local/apache/common-local/php-1.18/includes/GlobalFunctions.php line 1197: Object of class AFPData could not be converted to string