SH4x was known for being slightly more stable than other mods (like GBWhatsApp or YoWhatsApp) but shared the same fundamental architecture: it was a reverse-engineered version of the official WhatsApp code.
I’m not sure what you mean by “feature for: 'whatsapp sh4x patched'.” I’ll make a reasonable assumption and give two concise options — pick the one you intended: whatsapp sh4x patched
If your version of WhatsApp is no longer working due to being patched or out-of-date, you should: your chats if the app still allows it. Uninstall the unofficial SH4X or modded version. SH4x was known for being slightly more stable