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Lubridate 1.9.0
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@vspinu vspinu released this 06 Nov 13:47
· 45 commits to main since this release
v1.9.0
e3638f3

Version 1.9.0

NEW FEATURES

  • roll argument to updating and time-zone manipulation functions is deprecated in favor of a new roll_dst parameter.
  • #1042 as_date with character inputs accepts multiple formats in format argument. When format is supplied, the input string is parsed with parse_date_time instead of the old strptime.
  • #1055 Implement as.integer method for Duration, Period and Interval classes.
  • #1061 Make year<-, month<- etc. accessors truly generic. In order to make them work with arbitrary class XYZ, it's enough to define a reclass_date.XYZ method.
  • #1061 Add support for year<-, month<- etc. accessors for data.table's IDate and ITime objects.
  • #1017 week_start argument in all lubridate functions now accepts full and abbreviated names of the days of the week.
  • The assignment value wday<- can be a string either in English or as provided by the current locale.
  • Date rounding functions accept a date-time unit argument for rounding to a vector of date-times.
  • #1005 as.duration now allows for full roundtrip duration -> as.character -> as.duration
  • #911 C parsers treat multiple spaces as one (just like strptime does)
  • stamp gained new argument exact=FALSE to indicate whether orders argument is an exact strptime formats string or not.
  • #1001 Add %within method with signature (Interval, list), which was documented but not implemented.
  • #941 format_ISO8601() gained a new option usetz="Z" to format time zones with a "Z" and convert the time to the UTC time zone.
  • #931 Usage of Period objects in rounding functions is explicitly documented.

BUG FIXES

  • #1036 %within% now correctly works with flipped intervals
  • #1085 as_datetime() now preserves the time zone of the POSIXt input.
  • #1072 Names are now handled correctly when combining multiple Period or Interval objects.
  • #1003 Correctly handle r and R formats in locales which have no p format
  • #1074 Fix concatination of named Period, Interval and Duration vectors.
  • #1044 POSIXlt results returned by fast_strptime() and parse_date_time2() now have a recycled isdst field.
  • #1069 Internal code handling the addition of period months and years no longer generates partially recycled POSIXlt objects.
  • Fix rounding of POSIXlt objects
  • #1007 Internal lubridate formats are no longer propagated to stamp formater.
  • train argument in parse_date_time now takes effect. It was previously ignored.
  • #1004 Fix c.POSIXct and c.Date on empty single POSIXct and Date vectors.
  • #1013 Fix c(POSIXct,POSIXlt) heterogeneous concatenation.
  • #1002 Parsing only with format j now works on numeric inputs.
  • stamp() now correctly errors when no formats could be guessed.
  • Updating a date with timezone (e.g. tzs = "UTC") now returns a POSIXct.

INTERNALS

  • lubridate is now relying on timechange package for update and time-zone computation. Google's CCTZ code is no longer part of the package.
  • lubridate's updating logic is now built on top of timechange package.
  • Change implementation of c.Period, c.Duration and c.Interval from S4 to S3.
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