Sourced from chrono's releases.

0.4.34

Notable changes

• In chrono 0.4.34 we finished the work to make all methods const where doing so is supported by rust 1.61.
• We renamed the Duration type to TimeDelta. This removes the confusion between chrono's type and the later Duration type in the standard library. It will remain available under the old name as a type alias for compatibility.
• The Windows implementation of Local is rewritten. The new version avoids panics when the date is outside of the range supported by windows (the years 1601 to 30828), and gives more accurate results during DST transitions.
• The Display format of TimeDelta is modified to conform better to ISO 8601. Previously it converted all values greater than 24 hours to a value with days. This is not correct, as doing so changes the duration from an 'accurate' to a 'nominal' representation to use ISO 8601 terms.

Fixes

• Add missing range check in TimeDelta::milliseconds (#1385, thanks @​danwilliams)
• Remove check for DurationExceedsTimestamp in DurationRound (#1403, thanks @​joroKr21)
• Fix localized formatting with %X ((chronotope/pure-rust-locales#12, #1420)
• Windows: base implementation on GetTimeZoneInformationForYear (#1017)

Additions

• Add TimeDelta::try_milliseconds (#1385, thanks @​danwilliams)
• Add TimeDelta::new (#1337)
• Add StrftimeItems::{parse, parse_to_owned} and more documentation (#1184)
• More standard traits and documentation for format::Locale (via chronotope/pure-rust-locales#8)

Changes

• Rename Duration to TimeDelta, add type alias (#1406)
• Make TimeDelta methods const (#1337)
• Make remaining methods of NaiveDate, NaiveWeek, NaiveTime and NaiveDateTime const where possible (#1337)
• Make methods on DateTime const where possible (#1400)
• Make Display format of TimeDelta conform better to ISO 8601 (#1328)

Documentation

• Fix the formatting of timestamp_micros's Example doc (#1338 via #1386, thanks @​emikitas)
• Specify branch for GitHub Actions badge and fix link (#1388)
• Don't mention some deprecated methods in docs (#1395)
• Remove stray documentation from main (#1397)
• Improved documentation of TimeDelta constructors (#1385, thanks @​danwilliams)

Internal

• Switch branch names: 0.4.x releases are the main branch, work on 0.5 happens in the 0.5.x branch (#1390, #1402).
• Don't use deprecated method in impl Arbitrary for DateTime and set up CI test (#1336)
• Remove workaround for Rust < 1.61 (#1393)
• Bump codecov/codecov-action from 3 to 4 (#1404)
• Remove partial support for handling -0000 offset (#1411)
• Move TOO_LONG error out of parse_internal (#1419)

Thanks to all contributors on behalf of the chrono team, @​djc and @​pitdicker!

• dc19606 Prepare 0.4.34
• 58a2149 Add StrftimeItems::parse_to_owned
• 59eeb8c Add StrftimeItems::parse
• 79de122 Add more documentation to StrftimeItems::new_with_locale
• 5b7cf85 Add more documentation to StrftimeItems::new
• be6af79 Make Display format of TimeDelta conform better to ISO 8601
• d1cf0e9 Add test for issue 651
• 0ef34e4 Extend test to more distant dates
• fc67f3e Remove obsolete test
• acb693a Windows: rewrite using GetTimeZoneInformationForYear
• Additional commits viewable in compare view

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