Some of the changes in XF301VB 1.1.5 include:
Fix slightly over-eager VB4 rewrite match.
This release fixes several bugs that have been reported:
Improve false positive detection of several URL patterns that may match legitimate XenForo URLs (particularly if route filters are used).
Ensure that all redirects go to the canonical URL. This resolves problems when redirecting from a non-standard source location.