https://github.com/Lysxia/generic-random/blob/master/changelog.md
# 1.2.0.0
- Fix a bug where generators did not decrease the size parameter with
single-field constructors
- The sized generators now use a custom generator for lists.
Use `genericArbitraryRecG ()` to disable that.
- Lists of custom generators are now constructed using `(:+)` instead of
`GenList`
- Rename `Field` to `FieldGen`
- Add `Gen1`, `Gen1_` (custom generators for unary type constructors)
- Add `listOf'`, `listOf1'`, `vectorOf'`
- Remove deprecated module `Generic.Random.Generic`
# 1.1.0.2
- Improved performance
# 1.1.0.1
- Fix build for GHC<8
# 1.1.0.0
- Add option to specify custom generators for certain fields,
overriding Arbitrary instances
+ Add `genericArbitraryG`, `genericArbitraryUG`, `genericArbitrarySingleG`,
`genericArbitraryRecG`
- Add `GArbitrary` and `GUniformWeight` synonyms
- Deprecate `Generic.Random.Generic`
- Remove `weights` from the external API
# 1.0.0.0
- Make the main module `Generic.Random`
- Rework generic base case generation
+ You can explicitly provide a trivial generator (e.g., returning a
nullary constructor) using `withBaseCase`
+ Generically derive `BaseCaseSearch` and let `BaseCase` find small
values, no depth parameter must be specified anymore
- Add `genericArbitrarySingle`, `genericArbitraryRec`, `genericArbitraryU'`
- Deprecate `weights`
- Fixed bug with `genericArbitrary'` not dividing the size parameter
# 0.5.0.0
- Turn off dependency on boltzmann-samplers by default
- Add `genericArbitraryU`, `genericArbitraryU0` and `genericArbitraryU1`
- Compatible with GHC 7.8.4 and GHC 7.10.3
# 0.4.1.0
- Move Boltzmann sampler modules to another package: boltzmann-samplers
# 0.4.0.0
- Check well-formedness of constructor distributions at compile time.
- No longer support GHC 7.10.3 (the above feature relies on Generic
information which does not exist before GHC 8)
# 0.3.0.0
- Support GHC 7.10.3
- Replace `TypeApplications` with ad-hoc data types in
`genericArbitraryFrequency'`/`genericArbitrary'`