# 2.2.3
* `isNullable` defaults to `true`, and will not change.
* Deprecate `@nullable`.
* Add `@notNull`.

# 2.2.2+1
* Export commonly-used packages, for the sake of convenience.

# 2.2.2
* Add `HasAlias`, `DefaultsTo`, `nullable` idioms.
* `isNullable` defaults to `false` now.

# 2.2.1
* Add `serializesTo`.

# 2.2.0
* Add `@SerializableField`.

# 2.1.0
* Export `hashObjects`.

# 2.0.4+1
* Allow Dart 1 for this annotation-only package.

# 2.0.4
* Added `generatedSerializable`.

# 2.0.3
* Increased the upper SDK boundary.

# 2.0.2
* Added `DefaultValue`.

# 2.0.1
* Added `Serializers.typescript`.

# 2.0.0
* Dart 2+ constraint