Most of the Website will no longer supports older versions of TLS protocols which is TLS 1.0 and TLS 1.1. This will be required in order to maintain the highest security standards of website.
This means most of the website will supports only TLS 1.2 or higher.
What is TLS?
TLS which is full form of Transport Layer Security, a protocol used by website to communicate between client and server with data integrity and privacy.
Available TLS versions
- TLS 1.0
- TLS 1.1
- TLS 1.2
- TLS 1.3 (Latest)
Note: Most of the website does not support TLS 1.3 yet. But move to TLS 1.3 will be good step to make.
Here, the problem we face while disable TLS 1.0 and TLS 1.1 support and only allow TLS 1.2 and above protocols.
- Older version of Operating Systems does not support TLS 1.2
- Older version of Browsers does not support TLS 1.2.
So, I have summarized the TLS 1.2 supported OS and Browsers in below table.
| Operating System | TLS 1.2 supported OS versions | TLS 1.2 not supported OS versions | What should do? |
|---|---|---|---|
| Android Mobile | Android 5(Lolipop) and newer | Android 4.4(Kitkat) and older | Use Android 5 (Lolipop) or newer. |
| iOS Mobile | iOS 9 and newer | iOS 8.1 or older | Use iOS 9 or newer. |
| Windows Phone | Windows 8.1(IE 11 only), and Windows 10(Edge) | Windows 8.1(IE 10 or older) | Use Windows 10 Edge. Use IE 11 in Windows 8.1. |
| Windows Desktop | Windows Vista, XP and older : IE 11 Windows 7 and 8 : IE 8, 9, 10, and 11. Note: But, need to enable TLS 1.2 manually. Windows 8.1: IE 8, 9, 10, and 11. Windows 10: IE 8, 9, 10, and 11. Chrome: Version 30 and newer. Firefox: Version 24 and newer. Edge: All versions. | Windows Vista, XP and older: IE 6, 7, 8, 9 and 10. Windows 8 and newer: IE 6, and 7. Any Windows OS: Safari, Chrome 4 to 29 and Firefox 2 to 23. | Use Latest Version of Chrome, Firefox, Edge or IE 11 in any Windows OS. But don’t use Safari. Note: Apple no longer offers Safari updates for Windows. |
| Mac OS Desktop | Mac OS X 10.11 (EI Capitan) and newer. Mac OS X 10.10 (Yosemite) and older (Only Latest version of Chrome and Firefox). Safari Version 7 and newer. | Mac OS X 10.10 (Yosemite) and older (only Safari) Safari: Version 3.1 to 6.1 | Mac OS X 10.11 (EI Capitan) or newer: Use latest version of Safari, Chrome, and Firefox. Mac OS X 10.10 (Yosemite) or older: Use latest version of Chrome and Firefox, but don’t use Safari. |
