optics-core-0.3 (2020-04-15)

• GHC-8.10 support
• Add filteredBy and unsafeFilteredBy
• Add FunctorWithIndex, FoldableWithIndex and TraversableWithIndex instances for Const and Constant
• Add afoldVL and iafoldVL constructors
• Rename toAtraversalVL to atraverseOf, and toIxAtraversalVL to iatraverseOf
• Generalise element and elementOf to construct IxAffineTraversals instead of IxTraversals
• Change mapping to work on optic kinds other than Iso: it now supports Lens and Prism degenerating to Getter and Review respectively
• Generalise ignored to be an IxAffineTraversal instead of an IxTraversal
• Add singular and isingular
• Add (^?!) operator
• Expose Curry and CurryCompose
• Show expected elimination forms on optic kind mismatch
• Use stricter uncurry' for better performance
• Add hidden LabelOptic instance to postpone instance resolution
• Add GeneralLabelOptic for pluggable generic optics as labels
• Document monoidal structures of Folds
• Remove proxy argument from implies
• Add itoList

optics-core-0.2 (2019-10-18)

• Add non, non' and anon to Optics.Iso
• ix can produce optic kinds other than AffineTraversal
• Generalise type of generic1
• Move some internal definitions out to new indexed-profunctors package
• Introduce OpticKind and IxList type synonyms for better type inference
• Make itraverse for Seq faster for containers >= 0.6.0
• Assorted documentation improvements

optics-core-0.1 (2019-09-02)

• Initial release