As spec lead of JSR-310, the Java effort to enhance dates and times, I'm encoding TZDB data. In order to represent the different versions of the data, I'm using the tzdb naming scheme or year followed by letter, eg. 2010i. This version number is sorted alphabetically. Obviously, it is possible that there might be more than 26 releases of the data in one year. In order to maintain the alphabetical sort order, I'd like this list to determine a strategy for the unlikely event that this situation occurs. For example: 2010a 2010z 2010za 2010zb If the list does not arrange a strategy (and define it in the theory document), then JSR-310, or future maintainers, will have to make up our own approach for numbering the 27th and onwards releases. Opinions? thanks Stephen