v1.00 (2006-07-18)
First version completed

v1.01 (2006-07-19)
dst-adjust and add-interval added

v1.02 (2006-09-08)
Bug fix: Was using @dstRules instead of $dstRules in dst-adjust()

v1.03 (2006-09-11)
dst-adjust-from-iso added

v1.04 (2006-12-18)
Bug fix: iso-from-unix was giving invalid dates at the starts and ends of years by a number of days increasing by 1 for each leap year since 1972. iso-from-unix calculation significantly reworked, new tests added to test suite.

v1.05 (2007-02-10)
Bug fix: add-interval now returns ISO with original timezone preserved instead of a UNIX timestamp, because adding a monthly period then converting to UNIX causes the timezone information to be lost: a 1st Tuesday of the month could become a 2nd Tuesday of the month if add-interval is called again when the first Tuesday was the 7th in the local timezone but after midnight on 8th in UTC)
Added add-interval md and day ISO tests to test suite
Added add-interval random timezone tests to test suite

v1.06 (2007-06-02)
Added <is-date:abbr-month> table

v1.07 (2007-08-16)
Added day-of-week-from-iso
Added day-of-week-utc-from-iso
Added week-number-in-month-from-iso
Added week-number-in-month-utc-from-iso
Added time-ampm
Added time-ampm-from-iso
Added incomplete <is-date:dstlesstz> table
Clarified comments in add-interval

v1.08 (2007-08-24)
Formatting fix: changed 12pm to 'midday' and 0am to 'midnight' in time-ampm

v1.09 (2007-09-17)
Added shortname attributes to is-date:day (abbrieviated day names)
Added tzsign (+ or -) to &iso-params;
Added rfc822-from-iso (useful for RSS feeds)