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joshmoz | 10 years ago

Windows XP support was rolled out March 25 2016.

You can find more information about upcoming and completed features here:

https://letsencrypt.org/upcoming-features/

discuss

rjbwork|10 years ago

It also, ironically, broke a bunch IIS and Azure Web App hosted sites due to an incorrect intermediate being sent by the servers, with no recourse for new and renewing users at the moment...See https://github.com/sjkp/letsencrypt-siteextension/issues/42

haroldp|10 years ago

But that doesn't really help you if you are using SNI to host multiple sites on a single IP address, does it?

pfg|10 years ago

Internet Explorer doesn't support SNI on Windows XP, correct.

Let's Encrypt doesn't force you to use SNI, though. SNI is not something you "stick" on a certificate - it's a TLS extension which you don't have to use at all.