TYPO3 Core

I think that the .htaccess file located in the webroot directory of Typo3 is in dire need of an official documentation. (/typo3/public/.htaccess) Not only from a general perspective, but also when looking at a few specific issues/questions:

[1] If I check the “Directory Status” function (located at “Backend => Admin Tools => Environment”), then I get the following warning for the .htaccess file:

File /public/.htaccess content differs

File content is not identical to default content. This file may have been changed manually. The Install Tool will not overwrite the current version!

I think that the implications here are hard to understand without further explanations. Does Typo3 automatically update the .htaccess file when performing updates? And if it’s supposed to do that, does the warning from above mean that the process is no longer happening? Not even when performing major upgrades?

Also what if I exclusively put my changes after the “# Add your own rules here.” line? Will this trigger the above mentoined warning or not?

[2] Personally I did not actually modify the files content at all. When checking my .htaccess for differences to the vanilla content, it’s just some very minor stuff, i.e. a new file extension for a few FilesMatch declarations. Seems like a discrepancy in updates can cause the root htaccess to be detected as manually modified?

[3] If I understood this correctly, you can safely reset your .htaccess file to vanilla content by just copy & pasting the contents of typo3/typo3/sysext/install/Resources/Private/FolderStructureTemplateFiles/root-htaccess? I think that this would be a valuable information for the official documentation.

Regards, Nefiji