Utilizing LiteSpeeds LSUP script, you can upgrade/change to a specific version of LiteSpeed.
Running lsup without a parameter will automatically upgrade your installation of LiteSpeed Web Server to the latest stable release.
The following parameters are available for use with lsup.
-vparameter, followed by a version number, allows you to specify the version to install.
/usr/local/lsws/admin/misc/lsup.sh -v 6.0
-bparameter designates a build number. All versions start from build '0'. lsup will automatically upgrade to the latest build of the designated version if
-bis not set.
/usr/local/lsws/admin/misc/lsup.sh -v 6.0 -b 2
Please note that this option is only available for LSWS versions 5.0 and higher.
-fparameter forces lsup to install the latest edge build.
LiteSpeed created the following blog post detailing how to use the LSUP script.
To see what versions are available, please refer to the following article.