MyBB currently runs on all versions of PHP from 4 through to the very latest builds of version 5. This means for us, as developers, we need to be writing a lot of additional code which is unnecessary due to features provided by future releases.

PHP 5 was released three years ago and we've kept built in support for PHP 4 because web hosts have been slack and not upgraded to newer releases. At the end of this year, however, the PHP Group will officially drop support for PHP 4. That means we will be too.

As of our first releases of MyBB after February 2008, MyBB will be PHP 5.2+ compatible only.

This is an important move for us, we've got lots of legacy code which would run faster with newer native PHP 5.2 compatibility. PHP 5 has many benefits to you, as well, it's faster and opens up plugin & modification opportunities even further.

Our MySQL version requirements will remain the same, although we will be recommending MySQL 5.1 for installations of MyBB.

MyBB Group

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Good for MyBB. I wish vBulletin could keep up with free boards....

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Ford Mustang Forums - F-Series Trucks

Indeed, good move by MyBB

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What exactly is the benefit of solely focusing on PHP5?

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Immortality will come to such as are fit for it

Much better Object Oriented Programming support in which I hope anyone developing such a massive project as a forum would use OOP to accomplish it if they are going to support only PHP 5.

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Ford Mustang Forums - F-Series Trucks