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# 2.2.1
Released 2019-02-15.
* Make sure our rayon parallel iterators are exported. Previously instances of
them were returned by `pub` methods but the types themselves were not
exported.
# 2.2.0
Released 2019-01-30.
* Add the `Arena::alloc_with_id` method. This is better than using
`Arena::next_id` directly most of the time (but is also not *quite* as
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# 2.1.0
Released 2019-01-25.
* Added optional support for `rayon` parallel iteration. Enable the `rayon`
Cargo feature to get access.
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# 2.0.1
Released 2019-01-09.
* Implemented `Ord` and `PartialOrd` for `Id<T>`.
* Added an `Arena::with_capacity` constructor.
* Added `Arena::next_id` to get the id that will be used for the next
allocation.
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# 2.0.0
Released 2018-11-28.
* Introduces the `ArenaBehavior` trait, which allows one to customize identifier
types and do things like implement space optimizations or use identifiers for
many arenas at once.
* Implements `Clone`, `PartialEq` and `Eq` for arenas.
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# 1.0.2
Released 2018-11-25.
* `Id<T>` now implements `Send` and `Sync`
* The `PartialEq` implementation for `Id<T>` now correctly checks that two ids
are for the same arena when checking equality.
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# 1.0.1
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# 1.0.0