to 'uca-default-u-kn' or 'uca-<langcode>-u-kn'. If you can't use UCA collations,
a 'numeric' collation is also available. If migrating from another
collation, you will need to run the updateCollation.php maintenance script.
+* Two new codes have been added to #time parser function: "xit" for days in current
+ month, and "xiz" for days passed in the year, both in Iranian calendar.
=== External library changes in 1.28 ===