[Update]: PHP required version

[imath]

Link to the existing GH Documentation page.

https://github.com/buddypress/buddypress/blob/master/docs/user/getting-started/php-version-support.md

What needs to be updated?

See https://bpdevel.wordpress.com/2024/09/02/raising-the-minimum-version-of-wordpress-and-php-required-in-buddypress-15-0-0/

Handbook of the page to update

buddypress/docs/user

Tasks to accomplish

• This task has been added to the "Todo" panel of the Documentation project.
• A PR has been submitted to the BuddyPress GH repository, it has been linked to this issue/task & the task was moved to the "In progress" panel of the Documentation project.
• The PR has been converted to a SVN patch and committed to the BuddyPress SVN repository & the task was moved to the "Done" panel of the Documentation project.

[emaralive]

Since the update is related to 15.0, I pinned this issue so that it doesn't get lost as time passes. It probably wouldn't hurt to have a list of documents that require updating for any given release, as part of the release checklist, perhaps this one Building a new BuddyPress release.