PHP 8.0 and December 2020 PHP updates

Change effective on 07 December 2020

The following new PHP runtime versions are now available:

  • PHP 7.3.25
  • PHP 7.4.13
  • PHP 8.0.0

PHP 8 is available on the heroku-18 and heroku-20 stacks. Customers are advised that this is the first release of a major new version series and should be tested thoroughly. Several extensions are not yet available for PHP 8 (ext-amqp, ext-ev, ext-imagick, ext-memcached, ext-newrelic, ext-rdkafka, ext-redis).

The following PHP extensions have been updated:

  • ext-ev version 1.0.9
  • ext-event version 3.0.2
  • ext-mongodb version 1.9.0
  • ext-blackfire version 1.46.4

The versions of Composer used during builds has been updated to 1.10.19 and 2.0.8.