When we can use de item "L" for last elements in a cron job? Version Hangfire1.8.14

I’m programming a Job that should execute it the last day at every month, and I want to know if the version of Hangfire tha we have, supports that expression.

This is what I want to do:
RecurringJob.AddOrUpdate(

                "FacturarAlmuerzos",

                x => x.FacturarAlmuerzos(null),

                "0 9 L * *", //Se ejecuta el último día de cada mes a las 9 am

                 new RecurringJobOptions

                 {

                     TimeZone = TimeZoneInfo.FindSystemTimeZoneById("SA Pacific Standard Time")

                 });