PHP7 is required as minimum version to run TYPO3 8.
Taking on the decision, communicating and raising version requirements early in the development phase of a major version is part of our release strategy.
The team is aware that enforcing the still young PHP7 product line may look ambitious but we are confident this is the right decision for the following reasons:
Major operating systems and distributions already offer repositories to use PHP7 in their stable versions. For Debian GNU/Linux and Ubuntu derivatives an upgrade can typically be done within a couple of minutes. TYPO3 instances that switch to the 8.x line early don’t face unsolvable issues.
With the release of TYPO3 8 LTS in April 2017 we can expect every major distribution to provide PHP 7 in their default stable builds.
Support of PHP 7.0 in TYPO3 8 LTS is granted up until the end of the TYPO3 8 LTS lifetime in April 2020. We will keep this promise, there will not be a TYPO3 8 release that breaks version compatibility. Instead, it’s likely that younger PHP versions like PHP 7.1 will be supported on top.
Looking for instance at TYPO3 CMS 6.2 LTS, support for PHP 5.6 was officially added just recently. This took significant efforts and a time span of more than half a year to achieve compatibility in combination with the additionally promised support for PHP versions 5.3, 5.4 and 5.5.
PHP7 comes with significant performance improvements, users will love the more fluent system when working with TYPO3. We do not want to cripple this by supporting an old PHP version that is roughly half as quick. Hosters will love TYPO3 8 with PHP7 for the reduced system load, too. Last but not least, this is perfectly in line with green IT efforts.
PHP7 provides great language improvements that will further improve code quality and stability. The core team is looking forward to use them.
We are aware that this seems a bold statement, however, as a few might notice, we went with the same approach with choosing PHP 5.5 in October 2014. Shortly after our announcement, major PHP open source projects did the same announcement.
We are happy to see the huge progress we already have in TYPO3 8 and are looking for the final release, when TYPO3 will be miles ahead.
For any support, questions, sponsoring, requests, feel free to contact me via email