Log Message:
Update to aeson-1.5.6.0

1.5.6.0
* Make Show Value instance print object keys in lexicographic order.

1.5.5.1
* Fix a bug in FromJSON QuarterOfYear instance.

1.5.5.0
* Add instances for Month, Quarter and QuarterOfYear (from time-1.11),
  thanks to Oleg Grenrus.
* The aeson repository has been moved to the haskell github
  organization!

1.5.4.1
* Use Text.Encoding.decodeLatin1 to speed up ASCII string decoding,
  thanks to Dmitry Ivanov.
* Support bytestring 0.11.* and th-abstraction 0.4.*, thanks to Oleg
  Grenrus.

1.5.4.0
* Add instances for ToJSONKey and FromJSONKey to Const, thanks to Dan
  Fithian.
* Add support for template-haskell 2.17, thanks to Galen Huntington.
* Documentation typo fix, thanks to Jean-Baptiste Mazon.

1.5.3.0
* Add instances for types in strict and data-fix packages, thanks to
  Oleg Grenrus.
* CPP cleanup, thanks to Oleg Grenrus.
* Instances for dlist's Data.DList.DNonEmpty.DNonEmpty, thanks to Oleg
  Grenrus.

1.5.2.0
* Add Ord Value instance, thanks to Oleg Grenrus.
* Export rejectUnknownFields from Data.Aeson

1.5.1.0
* Add instances for these, thanks to Oleg Grenrus.

1.5.0.0
* Fix bug in rejectUnknownFields not respecting fieldLabelModifier,
  thanks to Markus Schirp.
* GFromJSON members are no longer exported from Data.Aeson(.Types), if
  you are using gParseJSON consider switching to gParseJSON', thanks
  to Oleg Grenrus.
* Aeson no longer accepts unescaped control characters, thanks to Oleg
  Grenrus.
* Remove CoerceText since GHC >=7.8 has Coercible, thanks to Oleg
  Grenrus.
* Rename the GToJSON class to GToJSON' and expose it, thanks to Oleg
  Grenrus.

1.4.7.1
* GHC 8.10 compatibility, thanks to Ryan Scott.

1.4.7.0

Long overdue release (once again), so there's quite a bit of stuff
included even though it's a "minor" release. Big thanks to all the
contributors, the project would not exist without you!

Special thanks to Oleg Grenrus and Xia Li-Yao for reviewing tons of
stuff.

New stuff:
* Add rejectUnknownFields to Options which rejects unknown fields on
  deserialization. Useful to find errors during development, but
  enabling this should be considered a breaking change as previously
  accepted inputs may now be rejected. Thanks to rmanne.
* FromJSON instance of Ratio a now parses numbers in addtion to
  standard {numerator=..., denumerator=...} encoding. Thanks to
  Aleksey Khudyakov.
* Add more information to parse errors, including a sample of the
  surrounding text. Hopefully this will lead to less "Failed to read:
  satisfy" confusion! Thanks to Sasha Bogicevic. We expect some
  downstream test suites to break because of this, apologies in
  advance. Hopefully you will like the improvement anyway :-)
* Add parseFail to Data.Aeson.Types. parseFail = fail but doesn't
  require users to know about MonadFail. Thanks to Colin Woodbury.
* Make Template Haskell type family detection smarter when deriving
  ToJSON1 instances, thanks to Ryan Scott.
* Optimize string parsing for the common case of strings without
  escapes, thanks to Yuras.

Misc:
* Clean up compiler warnings and switch from base-compat to
  base-compat-batteries. Thanks to Colin Woodbury & Oleg Grenrus.
* Clarification & fixes to documentation regarding treatment of Maybe
  fields, thanks to Roman Cheplyaka.
* Add documentation for internal development workflows. Thanks to Guru
  Devanla.
* Drop support for GHC < 7.8. We've chosen to support older GHCs as
  long as it doesn't prevent us from adding new features, but now it
  does! Thanks to Oleg Grenrus for the patch.
* Allow generic-deriving 1.13 in test suite.
* Some DRY fixes thanks to Mark Fajkus.