@Vassilis K.
Thank you. I'm out of luck then. There's no way my host will re-install because they keep telling me "The latest version is 4.2.10... we are already on 4.2.10! If there was a newer version, it would be 4.2.11"
I think the LiteSpeed team should either release hotfixes with a different version to avoid confusion or send an email to their hosting partners asking them to do a forced re-install.