It looks like next release will have quite a lot of new features thanks to contributed patches. Probably largest improvement will be PostgreSQL support in SMSD. This was many times required feature and Gammu will now finally have it thanks to Andrea Riciputi.
Another important change is completely rewritten vCalendar RRULE parsing, which should be able to handle all standard fields. The only part which is questionable right now is how to decode YD repeating. As I read specification, I think that it should be by day of year (eg. 32 for 1st February), but from real world (and especially Siemens phones) it looks like it is used for date repeating (which means same as YM). Anyway as real difference between both is only on leap years, I will probably switch to date repeating to be compatible with Siemens.
Last small change I want to mention is CMake build support. I'm going to bring it to usable state before release, so that it can be tested in wide set of environments. Then we will see whether it is worth of changing build system.
PS: You can expect testing release this weekend.