Symlink problem in 4.2

[dims]

In 4.1.13 symlink work fine
example:
dpr -> ../s.domain.com/_static/borpas-dpr
and file download successful:
http://domain.net/dpr/file.exe
in config for vhost:
<allowSymbolLink>1</allowSymbolLink>
each domain have the same user.

after update to 4.2 symlink doesnt work and returned 403 error
In log file nothing wrote about symlink error

I see in changelog for 4.2:
"Improved symbolic link security for shared hosting by introducing LiteSpeed specific directives "DisableSymlinkOverride" and "VhostRestrained"."
what means that each directive?