(time/R-lubridate) Updated 1.7.4 to 1.7.10
Version 1.7.10
==============
### NEW FEATURES
* `fast_strptime()` and `parse_date_time2()` now accept multiple formats and apply them in turn
### BUG FIXES
* [#926](https://github.com/tidyverse/lubridate/issues/926) Fix incorrect division of intervals by months involving leap years
* Fix incorrect skipping of digits during parsing of the `%z` format
Version 1.7.9.2
===============
### NEW FEATURES
* [#914](https://github.com/tidyverse/lubridate/issues/914) New `rollforward()` function
* [#928](https://github.com/tidyverse/lubridate/issues/928) On startup lubridate now resets TZDIR to a proper directory when it is set to non-dir values like "internal" or "macOS" (a change introduced in R4.0.2)
* [#630](https://github.com/tidyverse/lubridate/issues/630) New parsing functions `ym()` and `my()`
### BUG FIXES
* [#930](https://github.com/tidyverse/lubridate/issues/930) `as.period()` on intervals now returns valid Periods with double fields (not integers)
Version 1.7.9
=============
### NEW FEATURES
* [#871](https://github.com/tidyverse/lubridate/issues/893) Add `vctrs` support
### BUG FIXES
* [#890](https://github.com/tidyverse/lubridate/issues/890) Correctly compute year in `quarter(..., with_year = TRUE)`
* [#893](https://github.com/tidyverse/lubridate/issues/893) Fix incorrect parsing of abbreviated months in locales with trailing dot (regression in v1.7.8)
* [#886](https://github.com/tidyverse/lubridate/issues/886) Fix `with_tz()` for POSIXlt objects
* [#887](https://github.com/tidyverse/lubridate/issues/887) Error on invalid numeric input to `month()`
* [#889](https://github.com/tidyverse/lubridate/issues/889) Export new dmonth function
Version 1.7.8
=============
### NEW FEATURES
* (breaking) Year and month durations now assume 365.25 days in a year consistently in conversion and constructors. Particularly `dyears(1) == years(1)` is now `TRUE`.
* Format and print methods for 0-length objects are more consistent.
* New duration constructor `dmonths()` to complement other duration constructors.
*
* `duration()` constructor now accepts `months` and `years` arguments.
* [#629](https://github.com/tidyverse/lubridate/issues/629) Added `format_ISO8601()` methods.
* [#672](https://github.com/tidyverse/lubridate/issues/672) Eliminate all partial argument matches
* [#674](https://github.com/tidyverse/lubridate/issues/674) `as_date()` now ignores the `tz` argument
* [#675](https://github.com/tidyverse/lubridate/issues/675) `force_tz()`, `with_tz()`, `tz<-` convert dates to date-times
* [#681](https://github.com/tidyverse/lubridate/issues/681) New constants `NA_Date_` and `NA_POSIXct_` which parallel built-in primitive constants.
* [#681](https://github.com/tidyverse/lubridate/issues/681) New constructors `Date()` and `POSIXct()` which parallel built-in primitive constructors.
* [#695](https://github.com/tidyverse/lubridate/issues/695) Durations can now be compared with numeric vectors.
* [#707](https://github.com/tidyverse/lubridate/issues/707) Constructors return 0-length inputs when called with no arguments
* [#713](https://github.com/tidyverse/lubridate/issues/713) (breaking) `as_datetime()` always returns a `POSIXct()`
* [#717](https://github.com/tidyverse/lubridate/issues/717) Common generics are now defined in `generics` dependency package.
* [#719](https://github.com/tidyverse/lubridate/issues/719) Negative Durations are now displayed with leading `-`.
* [#829](https://github.com/tidyverse/lubridate/issues/829) `%within%` throws more meaningful messages when applied on unsupported classes
* [#831](https://github.com/tidyverse/lubridate/issues/831) Changing hour, minute or second of Date object now yields POSIXct.
* [#869](https://github.com/tidyverse/lubridate/issues/869) Propagate NAs to all internal components of a Period object
### BUG FIXES
* [#682](https://github.com/tidyverse/lubridate/issues/682) Fix quarter extraction with small `fiscal_start`s.
* [#703](https://github.com/tidyverse/lubridate/issues/703) `leap_year()` works with objects supported by `year()`.
* [#778](https://github.com/tidyverse/lubridate/issues/778) `duration()/period()/make_difftime()` work with repeated units
* `c.Period` concatenation doesn't fail with empty components.
* Honor `exact = TRUE` argument in `parse_date_time2`, which was so far ignored.
Version 1.7.4
=============
### NEW FEATURES
* [#658](https://github.com/tidyverse/lubridate/issues/658) `%within%` now accepts a list of intervals, in which case an instant is checked if it occurs within any of the supplied intervals.
### CHANGES
* [#661](https://github.com/tidyverse/lubridate/issues/661) Throw error on invalid multi-unit rounding.
* [#633](https://github.com/tidyverse/lubridate/issues/633) `%%` on intervals relies on `%m+` arithmetic and doesn't produce NAs when intermediate computations result in non-existent dates.
* `tz()` always returns "UTC" when `tzone` attribute cannot be inferred.
### BUG FIXES
* [#664](https://github.com/tidyverse/lubridate/issues/664) Fix lookup of period functions in `as.period`
* [#649](https://github.com/tidyverse/lubridate/issues/664) Fix system timezone memoization
Version 1.7.3
=============
### BUG FIXES
* [#643](https://github.com/tidyverse/lubridate/issues/643), [#640](https://github.com/tidyverse/lubridate/issues/640), [#645](https://github.com/tidyverse/lubridate/issues/645) Fix faulty caching of system timezone.
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