Change effective on 20 January 2017
The following new runtime versions are now available for PHP applications:
The following PHP extensions have been updated:
ext-apcu, version 5.1.8
ext-blackfire, version 1.14.2
ext-mongodb, version 1.2.3
ext-newrelic, version 6.9.0
ext-phalcon, version 3.0.3
ext-rdkafka, version 3.0.0
ext-redis, version 3.1.0
WEB_CONCURRENCY with leading zeroes are now ignored by the PHP startup scripts; this prevents other buildpacks on an application to inadvertently set a value when auto-tuning for application concurrency is desired.
New Relic will now automatically report
HEROKU_APP_NAME if the associated dyno metadata is available.