- #4312 [bugfix] Fix #4251: Avoid RFC2822 in utc() test
- #4240 [bugfix] Fix incorrect strict parsing with full-width parentheses
- #4341 [feature] Prevent toISOString converting to UTC (issue #1751)
- #4154 [feature] add format constants to support output to HTML5 input type formats (see #3928)
- #4143 [new locale] mt: Maltese language
- #4271 [locale] Fix Arabic locale for months
- #4267 [locale] set french weekdaysMin in lowercase
- #4210 [locale] Russian LT/LTS: Updated time format in accordance with CLDR and www.timeandunits.com
- #4209 [locale] es-us: Updated time format in accordance with CLDR and www.timeandunits.com
- #4200 [locale] Fix 4189: Updated time separator for German-Swiss locale
- #4183 [locale] Relative seconds i18n
- #4134 [locale] it: Remove comma between weekday and date, fixes #4133
- #3952 [locale] zh-cn,zh-hk,zh-tw: Change date formats according to CLDR