This extension introduces two magic words, __ADDNEWSECTIONBELOW__ and __ADDNEWSECTIONABOVE__, which control placement of new Talk: page sections.

This is an updated version of the single-file PHP script currently found at Extension:PlaceNewSection to support MediaWiki 1.3x and above.

So far:

• it's been updated to use an extension.json and ExtensionMessageFiles within that to register the extension hooks and magic words
• it's been reimplemented as an auto-loaded MediaWiki\Extension\PlaceNewSection class
• explict GPL v2 license headers have been added to the PHP source files
• it's undergone some manual testing to make sure it works with MediaWiki 1.31