9.11.0: Refactor function scopes

• Merged PR #61: Refactor function scopes: Capturing and returning.
  • fn captures variables from the surrounding scope
  • function does not
  • => ... is short for { return ... }
    (@thekid)

9.10.0: Logical assignment operators

• Merged PR #190: Implement logical AND and OR assignment operators &&=
  and ||=, see #133
  (@thekid)

9.9.0: Partial function application

• Merged PR #188: Implement partial function application as described
  in https://wiki.php.net/rfc/partial_function_application_v2
  (@thekid)

9.8.0: PHP 8.5, void casts

• Merged PR #189: Support (void)-casts, defined in #[NoDiscard]
  RFC https://wiki.php.net/rfc/marking_return_value_as_important
  (@thekid)
• Added PHP 8.6, changed PHP 8.5 to no longer allow failures in CI
  (@thekid)

9.7.0: Native clone with, PHP 8.5 fixes

• Changed PHP 8.5 emitter to emit clone with expressions natively now
  that the RFC has been implemented
  (@thekid)
• Fixed the warning Using null as an array offset is deprecated, use an
  empty string instead in PHP 8.5+
  (@thekid)
• Fixed the error Arrow functions on the right hand side of |> must be
  parenthesized - see https://externals.io/message/128473#128554
  (@thekid)

9.6.0: Clone with, PHP 8.5

• Merged PR #185: Implement "clone with", emitting emulating code for
  the expression, callable reference and calls with unpacking; see
  https://wiki.php.net/rfc/clone_with_v2
  (@thekid)
• Merged PR #187: Add PHP 8.5 emitter - @thekid

9.5.0: Pipeline operator

• Merged PR #181: Add support for pipelines with |> and ?|>, see
  https://wiki.php.net/rfc/pipe-operator-v3 and issue #180
  (@thekid)

9.4.0: Final properties

• Merged PR #184: Add support for final properties added in PHP 8.4, see
  https://wiki.php.net/rfc/property-hooks; including parameter promotion,
  see https://wiki.php.net/rfc/final_promotion
  (@thekid)

9.3.3: Callable new fix

• Fixed callable new syntax when using a variable or expression, e.g.
  new $class(...). See also php/php-src#12336
  (@thekid)

9.3.2: Match expressions fix

• Fixed empty match expressions and match expressions with default
  case only in PHP 7
  (@thekid)
• Added tests verifying closures are supported in constant expressions
  https://wiki.php.net/rfc/closures_in_const_expr
  (@thekid)