4.5.1 (2021-10-11)

• #25 Fix duplicate value
• #26 Add php unsupport timezone

4.4.2 (2021-07-15)

• #23 Add microsoft timezone map

4.4.1 (2021-01-18)

• #20 Validate count and until property

4.4.0 (2020-11-23)

• #18 Merge upstream changes from sabre-io/vobject:4.3.3 into protonlabs/vobject
• #17 Throw exception when getting invalid timezone

4.3.4 (2020-11-18)

• #16 Merge upstream changes up to upstream 4.3.1

4.3.3 (2020-07-22)

• #15 Expose RRULE properties from RRuleIterator

4.3.2 (2020-05-20)

• #14 Add extra timezones support

4.3.1 (2020-02-13)

• #6 Add FastForward Before
• #7 Add FastForward to end
• #11 FREQ is mandatory in the RRule
• #12 Validate BYMONTHDAY

4.2.1 (2019-09-10)

• #2 Fix bug in by year day
• #3 Add daily occurrences to nextMonth and NextYear
• #4 Enhance fast forward speed if no count value has been given

4.2.0 (2019-02-19)

https://github.com/sabre-io/vobject/releases/tag/4.2.0