Is there any harm in using RSS.php (or other deprecated features)?

I'm using RSS.php to parse RSS feeds on my site because I haven't got my head around SimplePie yet.

Functionally, it works exactly as I want it to, but with error reporting on, I of course get the "RSS.php has been deprecated" error message.

My question is, is there any harm in using RSS.php? I can't find any information on why it was deprecated, and as SimplePie has ceased development, I don't see any pressing need to switch to it.

Topic deprecation simplepie rss Wordpress

Category Web

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