"Establish a way for recurrences to work with non-Gregorian calendar systems, in particular lunar/solar calendars"

We have established the CALSCALE Ad Hoc committee to develop a draft proposal for supporting recurrences for non-gregorian calendars via the CALSCALE parameter in iCalendar and an RSCALE extension to RRULE. The goal is to allow clients supporting non-gregorian calendars to create recurring events without having to implement non-standard mechanisms. At this point the draft has been submitted to the IETF and the discussion is expected to continue on IETF mailing lists; we are not sure what further work will be done within CalConnect.