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PHP 8.4 now available
Change effective on 19 December 2024
PHP version 8.4.1 is now available as a runtime version for PHP applications on Heroku. It is available on the heroku-22
and heroku-24
stacks.
The following third-party PHP extensions have not yet been made compatible with PHP 8.4 by their respective upstream vendors and are therefore not available:
ext-newrelic
ext-phalcon
The following PHP extensions have been added or updated:
ext-blackfire
1.92.29ext-pcov
1.0.12
The following new Composer versions are now available for use during builds: