Core

Windows specific error messages are no longer localized, but instead always displayed in English to better match PHP error messages.

Preliminary and highly experimental support for building on ARM64 has been added.

OCI8

Because building against Oracle Client 10g is no longer supported anyway, the configuration option --with-oci8 has been dropped. The --with-oci8-11g, --with-oci8-12c and --with-oci8-19 configuration options are still supported.

Zip

The Zip extension is upgraded to version 1.21.0, and is now built as shared library (DLL) by default.