• Fix test failures in php 8.4.0alpha1 due to tests calling deprecated functions (#390)

https://pecl.php.net/igbinary has links to DLLs for PHP versions that were supported at the time the release was created. (PHP 8.0+ at the time of this release)

DLLs for older versions of PHP on Windows (7.2-7.4) can temporarily be found at https://github.com/igbinary/igbinary/actions/workflows/build_dlls.yml (under "Assets")

• Properly fix crash in igbinary_unserialize_object_enum_case with opcache protected memory and non-constant value. (#380)

NOTE: The PHP for Windows team is working on getting dlls built again for pecl extensions. Those should be used instead on Windows once they are available. See https://windows.php.net/

DLLs for Windows can temporarily be found at https://github.com/igbinary/igbinary/actions/workflows/build_dlls.yml (under "Assets")

• Fix build error in PHP 8.3-dev
• Fix test expectation errors in php 8.3-dev due to change to php's TypeErrors.

NOTE: The PHP for Windows team is working on getting dlls built again for pecl extensions. Those should be used instead on Windows once they are available. See https://windows.php.net/

DLLs for Windows can temporarily be found at https://github.com/igbinary/igbinary/actions/workflows/build_dlls.yml (under "Assets")

• Speed up unserialization of typed properties by reducing hash table collisions when looking up property reference info.

NOTE: The PHP for Windows team is working on getting dlls built again for pecl extensions. Those should be used instead on Windows once they are available. See https://windows.php.net/

DLLs for Windows can temporarily be found at https://github.com/igbinary/igbinary/actions/workflows/build_dlls.yml (under "Assets")

• Fix symbol error seen in php 8.2.0 loading zend_class_unserialize_deny, due to failing to load a header defining a macro.

NOTE: The PHP for Windows team is working on getting dlls built again for pecl extensions. Those should be used instead on Windows once they are available. See https://windows.php.net/

DLLs for Windows can temporarily be found at https://github.com/igbinary/igbinary/actions/workflows/build_dlls.yml (under "Assets")

• Fix a bug that could prevent objects/arrays with reference cycles from being properly garbage collected.
• Fix bugs in unserializing PHP references to values found in php 7.4 typed properties (#363)

NOTE: The PHP for Windows team is working on getting dlls built again for pecl extensions. Those should be used instead on Windows once they are available. See https://windows.php.net/

DLLs for Windows can temporarily be found at https://github.com/igbinary/igbinary/actions/workflows/build_dlls.yml (under "Assets")

• Add a macro that callers can use to check if igbinary will accept the header for data being unserialized.
• Fix bug preventing the unserialization of data containing representations of strings larger than 4GB.

NOTE: The PHP for Windows team is working on getting dlls built again for pecl extensions. Those should be used instead on Windows once they are available. See https://windows.php.net/

DLLs for Windows can temporarily be found at https://github.com/igbinary/igbinary/actions/workflows/build_dlls.yml (under "Assets")

• Fix invalid release artifact name in job to build dlls for https://github.com/igbinary/igbinary

NOTE: The PHP for Windows team is working on getting dlls built again for pecl extensions. Those should be used instead on Windows once they are available. See https://windows.php.net/

• Reduce excessive inlining to reduce shared library size.
• Miscellaneous optimizations.
• Update test expectations to handle changes to var_export output (fully qualified class names) in PHP 8.2.
• Throw an Error when igbinary_unserialize would add dynamic properties to class definitions that forbid them in PHP 8.0+
  (especially PHP 8.2 readonly classes)
• Emit a deprecation notice when igbinary_unserialize() adds dynamic properties to a class without #[AllowDynamicProperties] in PHP 8.2.
  Doing that would become an Error in PHP 9.0.
• Set up CI job to build dlls on https://github.com/igbinary/igbinary - at the moment, the infrastructure used by the Windows for php team has been broken for months.

NOTE: The PHP for Windows team is working on getting dlls built again for pecl extensions. Those should be used instead on Windows once they are available. See https://windows.php.net/

• Update test expectations for php 8.2.0-dev. Add #[AllowDynamicProperties] Attribute to some tests to avoid notices.
• In php 8.1+, make igbinary_unserialize check to see if an equivalent interned string already exists when unserializing object property names, array keys, and class names
  and use that instead of creating a brand new string.
  (This deliberately doesn't create a new interned string if one doesn't already exist.)
  (Before this change, igbinary would deduplicate strings when serializing, but would not check if strings were interned by PHP itself when unserializing)
• Avoid debug build assertion failure for HT_ASSERT_RC1 the same way as PHP's unserialize - this is a case where ostensibly there are no other references to the array being unserialized.