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litespeed_wiki:config:supported_quic_versions [2018/05/04 14:34] Lisa Clarke [Troubleshooting: Supported QUIC Versions Header is Wrong] |
litespeed_wiki:config:supported_quic_versions [2019/12/05 17:01] Lisa Clarke |
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| - | ====== What QUIC Versions Does LSWS Support? ====== | + | ====== What QUIC and HTTP/3 Versions Does LSWS Support? ====== |
| + | Initially, LSWS supported QUIC versions Q035, Q037. HTTP/3 support was introduced in July 2019. As of December 2019, the latest version of LSWS supports QUIC versions Q039, Q043, Q046 and HTTP/3 drafts ID-23 and ID-24, but this will continue to change, as both Chrome and LiteSpeed Web Server evolve. | ||
| ===== Supported Versions Show Automatically ===== | ===== Supported Versions Show Automatically ===== | ||
| - | Initially, LSWS supported Q035, Q037. As of this writing, the latest version of LSWS supports Q035, Q037, Q038, Q039, but this will continue to change, as both Chrome and LiteSpeed Web Server evolve. LSWS will automatically show the supported QUIC versions through the headers. | + | LSWS will automatically show the supported QUIC versions through the headers. |
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| + | There are a few ways to check which versions of QUIC and HTTP/3 are supported by a website. You can look up the ''alt-svc'' response header as shown below, or you can visit [[https://http3check.net/|HTTP/3 Check]] and enter the site's URL. HTTP/3 Check provides a free detailed report of any site's QUIC and HTTP/3 capabilities. | ||
| //Please do not change the LSWS **QUIC versions** setting!// Leave it as ''Not Set'', and the ''alt-svc'' response header will automatically display the currenly-supported versions. | //Please do not change the LSWS **QUIC versions** setting!// Leave it as ''Not Set'', and the ''alt-svc'' response header will automatically display the currenly-supported versions. | ||
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| //Don't forget to revert the setting back to ''Not Set'' once the bug is fixed.// Failure to do so will cause your configuration to become outdated in the future. | //Don't forget to revert the setting back to ''Not Set'' once the bug is fixed.// Failure to do so will cause your configuration to become outdated in the future. | ||
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| + | ===== Learn More ===== | ||
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| + | You can learn more about the history of LiteSpeed's QUIC and HTTP/3 support [[https://www.litespeedtech.com/latest-techs/http-3-is-coming|on our website]]. | ||