Predefined ISO-8601 based formatters in the `DateTimeFormatter` class that accept zone offsets (for example, `ISO_DATE`) now support short zone offsets for parsing. In previous releases, parsing offsets without seconds or nanoseconds (for example, `+01`) resulted in a `DateTimeParseException` with some ISO formatters. These offsets are now parsed successfully by all predefined ISO formatters that accept zone offsets.