Also seems simplePie library is auto loaded. This should not be happened, only if extension has requested to load
if(defined('SIMPLEPIE_VERSION')) echo "SIMPLEPIE IS AUTO-LOADED";

See the component from @wilsonge here #10835 (comment) I dont know if he ever did check it

Sorry for that! I searched before on https://issues.joomla.org.

Also seems simplePie library is auto loaded.

Everything in libraries/vendor is hooked up to Composer's autoloader, which depending on the package configuration will either manually load files when that's included or register mapping definitions so that classes can be loaded. Just because something's registered into the autoloader doesn't mean the entire package is actually loaded into memory.

Thanks!

i am reopening this as its still a valid question for @wilsonge if simplepie can be updated or not

I haven't had time to look into it. We have no examples in core, and I just don't have time to do a full code review inspection at the moment :/

For what little it's worth Wordpress haven't decided to go beyond 1.3.1 (their corresponding tracker has been open https://core.trac.wordpress.org/ticket/36669)

Honestly I'd just update it through composer and try it. Worst case is in a subsequent patch we may have to revert back

Ι'm the developer of "Ultimate Feed Display", I have replaced the folder
libraries\vendor\simplepie\simplepie\library with the new folder of version 1.5

I made some tests (through my mod) and I did not faced any crash or misbehavior.
I don't know how to test it further but seems OK to me.

OK well please submit a PR to update the library

You should be aware that this library is not included in Joomla 4

@zstergios I am closing this at this time. If you want to submit a PR to update simplepie then great