LHA Rates increase 30th percentile of local market rents

I need to increase the rent as I have a tenant who is receiving benefits (long story - but he’s the only tenant I have on benefits), in April 24 the LHA rates will be increased, but at the moment there is no information on what that will be, is there a way of finding this out prior to the published rates in April, or at which point do they take a snapshot of the average rents? At the moment the rental is making a significant loss which can’t be sustained, either I wait until they publish the rates and then increase or I guess what it is and increase in Jan 24.