@@ -84,6 +84,9 @@ into upgrade problems, please file an issue with details.
8484* New `ToJSON` and `FromJSON` instances for the following time-related
8585 types: `Day`, `LocalTime`.
8686
87+* `FromJSON` `UTCTime` parser accepts the same values as for `ZonedTime`,
88+ but converts any time zone offset into a UTC time.
89+
8790* The `Result` type is now an instance of `Foldable` and `Traversable`.
8891
8992* The `Data.Aeson.Generic` module has been removed. It was deprecated in
@@ -94,7 +97,12 @@ into upgrade problems, please file an issue with details.
9497* The instance of `Monad` for the `Result` type lacked an implementation
9598 of `fail` (oops). This has been corrected.
9699
100+* Semantics of `(.:?)` operator are changed. It's doesn't anymore accept
101+ present `Null` value.
97102
103+* Added `(Foldable t, ToJSON a) => ToJSON (t a)` overlappable instance.
104+ You might see `No instance for (Foldable YourPolymorphicType) arising from a
105+ use of ‘.=’` -errors due this change.
98106
99107# 0.9.0.1
100108