Core:
    Fixed bug #81656 (GCC-11 silently ignores -R).
    Fixed bug #81585 (cached_chunks are not counted to real_size on shutdown).
Filter:
    Fixed FILTER_FLAG_NO_RES_RANGE flag.
Hash:
    Fixed bug #7759 (Incorrect return types for hash() and hash_hmac()).
    Fixed bug #7826 (Inconsistent argument name in hash_hmac_file and hash_file).
MySQLnd:
    Fixed bug where large bigints may be truncated.
OCI8:
    Fixed bug #7765 (php_oci_cleanup_global_handles segfaults at second call).
OPcache:
    Fixed bug #81679 (Tracing JIT crashes on reattaching).
PDO_PGSQL:
    Fixed error message allocation of PDO PgSQL.
Sockets:
    Avoid void* arithmetic in sockets/multicast.c on NetBSD.
Spl:
    Fixed bug #75917 (SplFileObject::seek broken with CSV flags).