1.0.0

• added Expr::filter() to filter collections
• removed final keyword of expression classes to facilitate building
  domain expressions
• renamed Conjunction to AndX
• renamed Disjunction to OrX
• added Expr::andX() and Expr::orX()

1.0.0-beta5

• added method() selector
• added property() selector
• removed optional $key arguments. Use the key()/method()/property()
  selectors instead
• added isInstanceOf()
• removed class NotEmpty and used Not with IsEmpty instead
• renamed Webmozart\Expression\Comparison namespace to Webmozart\Expression\Constraint
• fixed type juggling in equivalentTo()

1.0.0-beta4

• fixed return types in Expr::true() and Expr::false()
• fixed minimum versions in composer.json

1.0.0-beta3

• optimized Valid::andX() and Valid::orX()
• optimized Invalid::andX() and Invalid::orX()
• removed true() and false(). Use same() instead
• renamed valid() to true() and invalid() to false()
• added contains()
• added brackets around string output of nested conjunctions/disjunctions

1.0.0-beta2

• added Selector
• removed key*() methods
• renamed argument $field to $key, moved it to end of the method arguments
  and made it optional for all test methods
• removed argument $field from key()
• removed argument $strict from true(), false() and oneOf()
• added atLeast() selector
• added exactly() selector
• added all() selector
• added atMost() selector
• added count() selector
• renamed oneOf() to in()
• added valid()
• added invalid()
• optimized andValid(), andInvalid(), orValid() and orInvalid()

1.0.0-beta

Released version "1.0.0-beta"