WIP - Release note for Monocle 1.2.0-M2

Monocle 1.2.0-M2.md

1.2.0-M2

Thanks to all the 14 contributors since 1.2.0-M1

Addition

• add only Prism to match a single value see
• add below Prism to lift a Prism in a Traverse see
• add length for Fold and Traversal #236 (thanks to aoiroaoino)
• add optics for scalaz.Either3 #242 (thanks to aoiroaoino)
• add optNelToList Iso see
• add fromIso combinator for all optics #245
• add left and right methods for Iso, Prism, Getter and Fold #273
• add safe down cast from BigInt #267
• add productToTuple Iso between case class and tuple using shapeless #247
• add GenIso.fields white box that generates the same Iso than productToTuple with better performances but less IDE support #297 (thaks to japgolly)
• add @PLenses macro annotation to generate PLens for case class with type parameters #114 (thanks to exlevan)
• add Plated typeclass #289 (thanks to puffnfresh)
• add optics for scalaz.Cofree #290 (thanks to LiamGoodacre)

Non backward compatible changes

• change At definition from def at(index: I): Lens[S, Option[A]] to def at(index: I): Lens[S, A]
• change At instance for Set and ISet from Lens[S, Option[Unit]] to Lens[S, Boolean]
• remove Index instances for bit indexing primitive Long, Int, Char, Bye from monocle-core
• add monocle-refined module with At instances for bit indexing primitive Long, Int, Char, Bye #291 (thanks to fthomas and julien-truffaut)

Deprecation

• deprecate theseDisjunction to theseToDisjunction see
• deprecate nelAndOneIso to nelToOneAnd see
• deprecate sum to choice and product to split #239

Documentation

• add tut examples for Prism #228
• add tut examples for Iso #279 (thanks to justjoheinz)
• add examples for Http Request optics usage #262 (thanks to 1ambda)
• add learning resources to the website #251

Bug Fixes

• fix long parser #244 (thanks to NightRa)
• fix GenIso case class with type parameter #263

Optimisation

• improve performances of index for Vector #258 (thanks to spebbe)