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PHP 7.0.1 and OPcache configuration updates

Change effective on 18 December 2015

PHP 7.0.1 is now available as a runtime for PHP applications on Heroku.

The following settings for Zend OPcache have been changed for all PHP runtimes:

opcache.memory_consumption now defaults to 128
opcache.interned_strings_buffer now defaults to 8
opcache.max_accelerated_files now defaults to 4000

Event density gradients now in Metrics beta channel Change in Dashboard Metrics policy for legacy dyno pricing plans