Coming from 0.1.x

While ducktape 0.2.x is not binary-compatible with ducktape 0.1.x it tries to be as source-compatible as possible with a few caveats (the following is a non-exhaustive list of source-incompatible changes that have a chance to be visible by the end users):

• instances of Transformers and Transformer.Fallible are NOT auto-deriveable anymore. Any code that relies on auto derivation of these should switch to Transformer.Derived and Transformer.Fallible.Derived,
• given definitions inside the companion of Transformer and Transformer.Fallible (like Transformer.betweenNonOptionOption etc) are gone and should be replaced with calls to Transformer.derive and Transformer.Fallible.derive with appropriate types as the type arguments,
• the signature of Mode[F]#traverseCollection has changed from

  def traverseCollection[A, B, AColl[x] <: Iterable[x], BColl[x] <: Iterable[x]](collection: AColl[A])(using
  transformer: FallibleTransformer[F, A, B],
  factory: Factory[B, BColl[B]]
  ): F[BColl[B]]

  to

  def traverseCollection[A, B, AColl <: Iterable[A], BColl <: Iterable[B]](
  collection: AColl,
  transformation: A => F[B]
  )(using factory: Factory[B, BColl]): F[BColl]

• BuilderConfig[A, B] is replaced by the union of Field[A, B] and Case[A, B], while ArgBuilderConfig[A, B] is replaced with Field[A, B],
• FunctionMirror is gone with no replacement (it was pretty much a leaking impl detail).