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Use indexed-traversable #951

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Dec 16, 2020
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Use indexed-traversable #951

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10 changes: 10 additions & 0 deletions CHANGELOG.markdown
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,16 @@
* Add `Control.Lens.Review.reviewing`, which is like `review` but with a more
polymorphic type.
* Mark `Control.Lens.Equality` as Trustworthy
* The `FunctorWithIndex`, `FoldableWithIndex` and `TraversableWithIndex` type classes
have been migrated to a new package, [`indexed-traversable`](https://hackage.haskell.org/package/indexed-traversable)

The `imapped`, `ifolded` and `itraversed` methods are now top-level functions.
If you are not defining these methods in your instances,
you don't need to change your definitions.

Beware: the `optics-core` package (versions <0.4) defines similar classes,
and will also migrate to use `indexed-traversable` classes. Therefore you
might get duplicate instance errors if your package defines both.

4.19.2 [2020.04.15]
-------------------
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8 changes: 5 additions & 3 deletions lens.cabal
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Expand Up @@ -193,12 +193,12 @@ library
bifunctors >= 5.1 && < 6,
bytestring >= 0.10.4.0 && < 0.12,
call-stack >= 0.1 && < 0.3,
comonad >= 4 && < 6,
comonad >= 5.0.7 && < 6,
contravariant >= 1.3 && < 2,
containers >= 0.5.5.1 && < 0.7,
distributive >= 0.3 && < 1,
filepath >= 1.2.0.0 && < 1.5,
free >= 4 && < 6,
free >= 5.1.5 && < 6,
ghc-prim,
hashable >= 1.1.2.3 && < 1.4,
kan-extensions >= 5 && < 6,
Expand All @@ -217,7 +217,9 @@ library
transformers >= 0.3.0.0 && < 0.6,
transformers-compat >= 0.4 && < 1,
unordered-containers >= 0.2.4 && < 0.3,
vector >= 0.9 && < 0.13
vector >= 0.9 && < 0.13,
indexed-traversable >= 0.1 && < 0.2,
indexed-traversable-instances >= 0.1 && < 0.2

if !impl(ghc >= 8.0)
build-depends:
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