Further reading:
- Can I use page for: TLS 1.1
- Wikipedia article about TLS 1.1
- Modernizing Transport Security - Google Security Blog
- Modernizing TLS connections in Microsoft Edge and Internet Explorer 11 - Microsoft Windows Blog
- Removing Old Versions of TLS - Mozilla Security Blog
- Deprecation of Legacy TLS 1.0 and 1.1 Versions - WebKit Blog