PHP 8.4.1: Downloads, Changelog, News

BcMath

• [RFC] Add bcfloor, bcceil and bcround to BCMath.
• Improve performance.
• Adjust bcround()'s $mode parameter to only accept the RoundingMode enum.
• Fixed LONG_MAX in BCMath ext.
• Fixed bcdiv() div by one.
• [RFC] Support object types in BCMath.
• bcpow() performance improvement.
• ext/bcmath: Check for scale overflow.
• [RFC] ext/bcmath: Added bcdivmod.
• Fix GH-15968 (Avoid converting objects to strings in operator calculations).
• Fixed bug GH-16265 (Added early return case when result is 0)
• Fixed bug GH-16262 (Fixed a bug where size_t underflows)
• Fixed GH-16236 (Fixed a bug in BcMath`Number::pow()andbcpow()` when raising negative powers of 0)

Core

• Added zend_call_stack_get implementation for NetBSD, DragonFlyBSD, Solaris and Haiku.
• Enabled ifunc checks on FreeBSD from the 12.x releases.
• Changed the type of PHP_DEBUG and PHP_ZTS constants to bool.
• Fixed bug GH-13142 (Undefined variable name is shortened when contains \0).
• Fixed bug GH-13178 (Iterator positions incorrect when converting packed array to hashed).
• Fixed zend fiber build for solaris default mode (32 bits).
• Fixed zend call stack size for macOs/arm64.
• Added support for Zend Max Execution Timers on FreeBSD.
• Ensure fiber stack is not backed by THP.
• Implement GH-13609 (Dump wrapped object in WeakReference class).
• Added sparc64 arch assembly support for zend fiber.
• Fixed GH-13581 no space available for TLS on NetBSD.
• Added fiber Sys-V loongarch64 support.
• Adjusted closure names to include the parent function's name.
• Improve randomness of uploaded file names and files created by tempnam().
• Added gc and shutdown callbacks to zend_mm custom handlers.
• Fixed bug GH-14650 (Compute the size of pages before allocating memory).
• Fixed bug GH-11928 (The --enable-re2c-cgoto doesn't add the -g flag).
• Added the #[\Deprecated] attribute.
• Fixed GH-11389 (Allow suspending fibers in destructors).
• Fixed bug GH-14801 (Fix build for armv7).
• Implemented property hooks RFC.
• Fix GH-14978 (The xmlreader extension phpize build).
• Throw Error exception when encountering recursion during comparison, rather than fatal error.
• Added missing cstddef include for C++ builds.
• Updated build system scripts config.guess to 2024-07-27 and config.sub to 2024-05-27.
• Fixed bug GH-15240 (Infinite recursion in trait hook).
• Fixed bug GH-15140 (Missing variance check for abstract set with asymmetric type).
• Fixed bug GH-15181 (Disabled output handler is flushed again).
• Passing E_USER_ERROR to trigger_error() is now deprecated.
• Fixed bug GH-15292 (Dynamic AVX detection is broken for MSVC).
• Using "_" as a class name is now deprecated.
• Exiting a namespace now clears seen symbols.
• The exit (and die) language constructs now behave more like a function. They can be passed liked callables, are affected by the strict_types declare statement, and now perform the usual type coercions instead of casting any non-integer value to a string. As such, passing invalid types to exit/die may now result in a TypeError being thrown.
• Fixed bug GH-15438 (Hooks on constructor promoted properties without visibility are ignored).
• Fixed bug GH-15419 (Missing readonly+hook incompatibility check for readonly classes).
• Fixed bug GH-15187 (Various hooked object iterator issues).
• Fixed bug GH-15456 (Crash in get_class_vars() on virtual properties).
• Fixed bug GH-15501 (Windows HAVE_<header>_H macros defined to 1 or undefined).
• Implemented asymmetric visibility for properties.
• Fixed bug GH-15644 (Asymmetric visibility doesn't work with hooks).
• Implemented lazy objects RFC.
• Fixed bug GH-15686 (Building shared iconv with external iconv library).
• Fixed missing error when adding asymmetric visibility to unilateral virtual property.
• Fixed bug GH-15693 (Unnecessary include in main.c bloats binary).
• Fixed bug GH-15731 (AllowDynamicProperties validation should error on enums).
• Fixed bug GH-16040 (Use-after-free of object released in hook).
• Fixed bug GH-16026 (Reuse of dtor fiber during shutdown).
• Fixed bug GH-15999 (zend_std_write_property() assertion failure with lazy objects).
• Fixed bug GH-15960 (Foreach edge cases with lazy objects).
• Fixed bug GH-16185 (Various hooked object iterator issues).
• Fixed bug OSS-Fuzz #371445205 (Heap-use-after-free in attr_free).
• Fixed missing error when adding asymmetric visibility to static properties.
• Fixed bug OSS-Fuzz #71407 (Null-dereference WRITE in zend_lazy_object_clone).
• Fixed bug GH-16574 (Incorrect error "undefined method" messages).
• Fixed bug GH-16577 (EG(strtod_state).freelist leaks with opcache.preload).
• Fixed bug GH-16615 (Assertion failure in zend_std_read_property).
• Fixed bug GH-16342 (Added ReflectionProperty::isLazy()).
• Fixed bug GH-16725 (Incorrect access check for non-hooked props in hooked object iterator).

Curl

• Deprecated the CURLOPT_BINARYTRANSFER constant.
• Bumped required libcurl version to 7.61.0.
• Added feature_list key to the curl_version() return value.
• Added constants CURL_HTTP_VERSION_3 (libcurl 7.66) and CURL_HTTP_VERSION_3ONLY (libcurl 7.88) as options for CURLOPT_HTTP_VERSION
• Added CURLOPT_TCP_KEEPCNT to set the number of probes to send before dropping the connection.
• Added CURLOPT_PREREQFUNCTION Curl option to set a custom callback after the connection is established, but before the request is performed.
• Added CURLOPT_SERVER_RESPONSE_TIMEOUT, which was formerly known as CURLOPT_FTP_RESPONSE_TIMEOUT.
• The CURLOPT_DNS_USE_GLOBAL_CACHE option is now silently ignored.
• Added CURLOPT_DEBUGFUNCTION as a Curl option.
• Fixed bug GH-16359 (crash with curl_setopt* CURLOPT_WRITEFUNCTION without null callback).
• Fixed bug GH-16723 (CURLMOPT_PUSHFUNCTION issues).

Date

• Added DateTime[Immutable]::createFromTimestamp.
• Added DateTime[Immutable]::[get|set]Microsecond.
• Constants SUNFUNCS_RET_TIMESTAMP, SUNFUNCS_RET_STRING, and SUNFUNCS_RET_DOUBLE are now deprecated.
• Fixed bug GH-13773 (DatePeriod not taking into account microseconds for end date).

DBA

• Passing null or false to dba_key_split() is deprecated.

Debugging

• Fixed bug GH-15923 (GDB: Python Exception <class 'TypeError'>: exceptions must derive from BaseException).

DOM

• Added DOMNode::compareDocumentPosition().
• Implement #53655 (Improve speed of DOMNode::C14N() on large XML documents).
• Fix cloning attribute with namespace disappearing namespace.
• Implement DOM HTML5 parsing and serialization RFC.
• Fix DOMElement->prefix with empty string creates bogus prefix.
• Handle OOM more consistently.
• Implemented "Improve callbacks in ext/dom and ext/xsl" RFC.
• Added DOMXPath::quote() static method.
• Implemented opt-in ext/dom spec compliance RFC.
• Fixed bug #79701 (getElementById does not correctly work with duplicate definitions).
• Implemented "New ext-dom features in PHP 8.4" RFC.
• Fixed GH-14698 (segfault on DOM node dereference).
• Improve support for template elements.
• Fix trampoline leak in xpath callables.
• Throw instead of silently failing when creating a too long text node in (DOM)ParentNode and (DOM)ChildNode.
• Fixed bug GH-15192 (Segmentation fault in dom extension (html5_serializer)).
• Deprecated DOM_PHP_ERR constant.
• Removed DOMImplementation::getFeature().
• Fixed bug GH-15331 (Element::$substitutedNodeValue test failed).
• Fixed bug GH-15570 (Segmentation fault (access null pointer) in ext/dom/html5_serializer.c).
• Fixed bug GH-13988 (Storing DOMElement consume 4 times more memory in PHP 8.1 than in PHP 8.0).
• Fix XML serializer errata: xmlns="" serialization should be allowed.
• Fixed bug GH-15910 (Assertion failure in ext/dom/element.c).
• Fix unsetting DOM properties.
• Fixed bug GH-16190 (Using reflection to call Dom\Node::__construct causes assertion failure).
• Fix edge-case in DOM parsing decoding.
• Fixed bug GH-16465 (Heap buffer overflow in DOMNode->getElementByTagName).
• Fixed bug GH-16594 (Assertion failure in DOM -> before).

Fileinfo

• Update to libmagic 5.45.
• Fixed bug #65106 (PHP fails to compile ext/fileinfo).

FPM

• Implement GH-12385 (flush headers without body when calling flush()).
• Added DragonFlyBSD system to the list which set FPM_BACKLOG_DEFAULT to SOMAXCONN.
• /dev/poll events.mechanism for Solaris/Illumos setting had been retired.
• Added memory peak to the scoreboard / status page.

FTP

• Removed the deprecated inet_ntoa call support.
• Fixed bug #63937 (Upload speed 10 times slower with PHP).

GD

• Fix parameter numbers and missing alpha check for imagecolorset().
• imagepng/imagejpeg/imagewep/imageavif now throw an exception on invalid quality parameter.
• Check overflow/underflow for imagescale/imagefilter.
• Added gdImageClone to bundled libgd.

Gettext

• bind_textdomain_codeset, textdomain and d(*)gettext functions now throw an exception on empty domain.

GMP

• The GMP class is now final and cannot be extended anymore.
• RFC: Change GMP bool cast behavior.

Hash

• Changed return type of hash_update() to true.
• Added HashContext::__debugInfo().
• Deprecated passing incorrect data types for options to ext/hash functions.
• Added SSE2 and SHA-NI implementation of SHA-256.
• Fix GH-15384 (Build fails on Alpine / Musl for amd64).
• Fixed bug GH-15742 (php_hash_sha.h incompatible with C++).

IMAP

• Moved to PECL.

Intl

• Added IntlDateFormatter::PATTERN constant.
• Fixed Numberformatter::__construct when the locale is invalid, now throws an exception.
• Added NumberFormatter::ROUND_TOWARD_ZERO and ::ROUND_AWAY_FROM_ZERO as aliases for ::ROUND_DOWN and ::ROUND_UP.
• Added NumberFormatter::ROUND_HALFODD.
• Added PROPERTY_IDS_UNARY_OPERATOR, PROPERTY_ID_COMPAT_MATH_START and PROPERTY_ID_COMPAT_MATH_CONTINUE constants.
• Added IntlDateFormatter::getIanaID/intltz_get_iana_id method/function.
• Set to C++17 standard for icu 74 and onwards.
• resourcebundle_get(), ResourceBundle::get(), and accessing offsets on a ResourceBundle object now throw: - TypeError for invalid offset types - ValueError for an empty string - ValueError if the integer index does not fit in a signed 32 bit integer
• ResourceBundle::get() now has a tentative return type of: ResourceBundle|array|string|int|null
• Added the new Grapheme function grapheme_str_split.
• Added IntlDateFormatter::parseToCalendar.
• Added SpoofChecker::setAllowedChars to set unicode chars ranges.

LDAP

• Added LDAP_OPT_X_TLS_PROTOCOL_MAX/LDAP_OPT_X_TLS_PROTOCOL_TLS1_3 constants.

LibXML

• Added LIBXML_RECOVER constant.
• libxml_set_streams_context() now throws immediately on an invalid context instead of at the use-site.
• Added LIBXML_NO_XXE constant.

MBString

• Added mb_trim, mb_ltrim and mb_rtrim.
• Added mb_ucfirst and mb_lcfirst.
• Updated Unicode data tables to Unicode 15.1.
• Fixed bug GH-15824 (mb_detect_encoding(): Argument $encodings contains invalid encoding "UTF8").
• Updated Unicode data tables to Unicode 16.0.

Mysqli

• The mysqli_ping() function and mysqli::ping() method are now deprecated, as the reconnect feature was removed in PHP 8.2.
• The mysqli_kill() function and mysqli::kill() method are now deprecated. If this functionality is needed a SQL "KILL" command can be used instead.
• The mysqli_refresh() function and mysqli::refresh() method are now deprecated. If this functionality is needed a SQL "FLUSH" command can be used instead.
• Passing explicitly the $mode parameter to mysqli_store_result() has been deprecated. As the MYSQLI_STORE_RESULT_COPY_DATA constant was only used in conjunction with this function it has also been deprecated.

MySQLnd

• Fixed bug GH-13440 (PDO quote bottleneck).
• Fixed bug GH-10599 (Apache crash on Windows when using a self-referencing anonymous function inside a class with an active mysqli connection).

Opcache

• Added large shared segments support for FreeBSD.
• If JIT is enabled, PHP will now exit with a fatal error on startup in case of JIT startup initialization issues.
• Increased the maximum value of opcache.interned_strings_buffer to 32767 on 64bit archs.
• Fixed bug GH-13834 (Applying non-zero offset 36 to null pointer in zend_jit.c).
• Fixed bug GH-14361 (Deep recursion in zend_cfg.c causes segfault).
• Fixed bug GH-14873 (PHP 8.4 min function fails on typed integer).
• Fixed bug GH-15490 (Building of callgraph modifies preloaded symbols).
• Fixed bug GH-15178 (Assertion in tracing JIT on hooks).
• Fixed bug GH-15657 (Segmentation fault in dasm_x86.h).
• Added opcache_jit_blacklist() function.
• Fixed bug GH-16009 (Segmentation fault with frameless functions and undefined CVs).
• Fixed bug GH-16186 (Assertion failure in Zend/zend_operators.c).
• Fixed bug GH-16572 (Incorrect result with reflection in low-trigger JIT).
• Fixed GH-16839 (Error on building Opcache JIT for Windows ARM64).

OpenSSL

• Fixed bug #80269 (OpenSSL sets Subject wrong with extraattribs parameter).
• Implement request #48520 (openssl_csr_new - allow multiple values in DN).
• Introduced new serial_hex parameter to openssl_csr_sign.
• Added X509_PURPOSE_OCSP_HELPER and X509_PURPOSE_TIMESTAMP_SIGN constants.
• Bumped minimum required OpenSSL version to 1.1.1.
• Added compile-time option --with-openssl-legacy-provider to enable legacy provider.
• Added support for Curve25519 + Curve448 based keys.
• Fixed bug GH-13343 (openssl_x509_parse should not allow omitted seconds in UTCTimes).
• Bumped minimum required OpenSSL version to 1.1.0.
• Implement GH-13514 PASSWORD_ARGON2 from OpenSSL 3.2.

Output

• Clear output handler status flags during handler initialization.
• Fixed bug with url_rewriter.hosts not used by output_add_rewrite_var().

PCNTL

• Added pcntl_setns for Linux.
• Added pcntl_getcpuaffinity/pcntl_setcpuaffinity.
• Updated pcntl_get_signal_handler signal id upper limit to be more in line with platforms limits.
• Added pcntl_getcpu for Linux/FreeBSD/Solaris/Illumos.
• Added pcntl_getqos_class/pcntl_setqos_class for macOs.
• Added SIGCKPT/SIGCKPTEXIT constants for DragonFlyBSD.
• Added FreeBSD's SIGTRAP handling to pcntl_siginfo_to_zval.
• Added POSIX pcntl_waitid.
• Fixed bug GH-16769: (pcntl_sigwaitinfo aborts on signal value as reference).

PCRE

• Upgrade bundled pcre2lib to version 10.43.
• Add "/r" modifier.
• Upgrade bundled pcre2lib to version 10.44.
• Fixed GH-16189 (underflow on offset argument).
• Fix UAF issues with PCRE after request shutdown.

PDO

• Fixed setAttribute and getAttribute.
• Implemented PDO driver-specific subclasses RFC.
• Added support for PDO driver-specific SQL parsers.
• Fixed bug GH-14792 (Compilation failure on pdo_* extensions).
• mysqlnd: support ER_CLIENT_INTERACTION_TIMEOUT.
• The internal header php_pdo_int.h is no longer installed; it is not supposed to be used by PDO drivers.
• Fixed bug GH-16167 (Prevent mixing PDO sub-classes with different DSN).
• Fixed bug GH-16314 ("Pdo\Mysql object is uninitialized" when opening a persistent connection).

PDO_DBLIB

• Fixed setAttribute and getAttribute.
• Added class Pdo\DbLib.

PDO_Firebird

• Fixed setAttribute and getAttribute.
• Feature: Add transaction isolation level and mode settings to pdo_firebird.
• Added class Pdo\Firebird.
• Added Pdo`Firebird::ATTR_API_VERSION`.
• Added getApiVersion() and removed from getAttribute().
• Supported Firebird 4.0 datatypes.
• Support proper formatting of time zone types.
• Fixed GH-15604 (Always make input parameters nullable).

PDO_MYSQL

• Fixed setAttribute and getAttribute.
• Added class Pdo\Mysql.
• Added custom SQL parser.
• Fixed GH-15949 (PDO_MySQL not properly quoting PDO_PARAM_LOB binary data).

PDO_ODBC

• Added class Pdo\Odbc.

PDO_PGSQL

• Fixed GH-12423, DSN credentials being prioritized over the user/password PDO constructor arguments.
• Fixed native float support with pdo_pgsql query results.
• Added class Pdo\Pgsql.
• Retrieve the memory usage of the query result resource.
• Added Pdo`Pgsql::setNoticeCallBack` method to receive DB notices.
• Added custom SQL parser.
• Fixed GH-15986 (Double-free due to Pdo`Pgsql::setNoticeCallback()`).
• Fixed GH-12940 (Using PQclosePrepared when available instead of the DEALLOCATE command to free statements resources).
• Remove PGSQL_ATTR_RESULT_MEMORY_SIZE constant as it is provided by the new PDO Subclass as Pdo`Pgsql::ATTR_RESULT_MEMORY_SIZE`.

PDO_SQLITE

• Added class Pdo\Sqlite.
• Fixed bug #81227 (PDO::inTransaction reports false when in transaction).
• Added custom SQL parser.

PHPDBG

• array out of bounds, stack overflow handled for segfault handler on windows.
• Fixed bug GH-16041 (Support stack limit in phpdbg).

PGSQL

• Added the possibility to have no conditions for pg_select.
• Persistent connections support the PGSQL_CONNECT_FORCE_RENEW flag.
• Added pg_result_memory_size to get the query result memory usage.
• Added pg_change_password to alter an user's password.
• Added pg_put_copy_data/pg_put_copy_end to send COPY commands and signal the end of the COPY.
• Added pg_socket_poll to poll on the connection.
• Added pg_jit to get infos on server JIT support.
• Added pg_set_chunked_rows_size to fetch results per chunk.
• pg_convert/pg_insert/pg_update/pg_delete ; regexes are now cached.

Phar

• Fixed bug GH-12532 (PharData created from zip has incorrect timestamp).

POSIX

• Added POSIX_SC_CHILD_MAX and POSIX_SC_CLK_TCK constants.
• Updated posix_isatty to set the error number on file descriptors.

PSpell

• Moved to PECL.

Random

• Fixed bug GH-15094 (php_random_default_engine() is not C++ conforming).
• lcg_value() is now deprecated.

Readline

• Fixed readline_info, rl_line_buffer_length/rl_len globals on update.
• Fixed bug #51558 (Shared readline build fails).
• Fixed UAF with readline_info().

Reflection

• Implement GH-12908 (Show attribute name/class in ReflectionAttribute dump).
• Make ReflectionGenerator::getFunction() legal after generator termination.
• Added ReflectionGenerator::isClosed().
• Fixed bug GH-15718 (Segfault on ReflectionProperty::get{Hook,Hooks}() on dynamic properties).
• Fixed bug GH-15694 (ReflectionProperty::isInitialized() is incorrect for hooked properties).
• Add missing ReflectionProperty::hasHook[s]() methods.
• Add missing ReflectionProperty::isFinal() method.
• Fixed bug GH-16122 (The return value of ReflectionFunction::getNamespaceName() and ReflectionFunction::inNamespace() for closures is incorrect).
• Fixed bug GH-16162 (No ReflectionProperty::IS_VIRTUAL)
• Fixed the name of the second parameter of ReflectionClass::resetAsLazyGhost().

Session

• INI settings session.sid_length and session.sid_bits_per_character are now deprecated.
• Emit warnings for non-positive values of session.gc_divisor and negative values of session.gc_probability.
• Fixed bug GH-16590 (UAF in session_encode()).

SimpleXML

• Fix signature of simplexml_import_dom().

SNMP

• Removed the deprecated inet_ntoa call support.

SOAP

• Add support for clark notation for namespaces in class map.
• Mitigate #51561 (SoapServer with a extented class and using sessions, lost the setPersistence()).
• Fixed bug #49278 (SoapClient::__getLastResponseHeaders returns NULL if wsdl operation !has output).
• Fixed bug #44383 (PHP DateTime not converted to xsd:datetime).
• Fixed bug GH-11941 (soap with session persistence will silently fail when "session" built as a shared object).
• Passing an int to SoapServer::addFunction() is now deprecated. If all PHP functions need to be provided flatten the array returned by get_defined_functions().
• The SOAP_FUNCTIONS_ALL constant is now deprecated.
• Fixed bug #61525 (SOAP functions require at least one space after HTTP header colon).
• Implement request #47317 (SoapServer::__getLastResponse()).

Sockets

• Removed the deprecated inet_ntoa call support.
• Added the SO_EXECLUSIVEADDRUSE windows constant.
• Added the SOCK_CONN_DGRAM/SOCK_DCCP netbsd constants.
• Added multicast group support for ipv4 on FreeBSD. (jonathan@tangential.ca)
• Added the TCP_SYNCNT constant for Linux to set number of attempts to send SYN packets from the client.
• Added the SO_EXCLBIND constant for exclusive socket binding on illumos/solaris.
• Updated the socket_create_listen backlog argument default value to SOMAXCONN.
• Added the SO_NOSIGPIPE constant to control the generation of SIGPIPE for macOs and FreeBSD.
• Added SO_LINGER_SEC for macOs, true equivalent of SO_LINGER in other platforms.
• Add close-on-exec on socket created with socket_accept on unixes.
• Added IP_PORTRANGE* constants for BSD systems to control ephemeral port ranges.
• Added SOCK_NONBLOCK/SOCK_CLOEXEC constants for socket_create and socket_create_pair to apply O_NONBLOCK/O_CLOEXEC flags to the newly created sockets.
• Added SO_BINDTOIFINDEX to bind a socket to an interface index.

Sodium

• Add support for AEGIS-128L and AEGIS-256.
• Enable AES-GCM on aarch64 with the ARM crypto extensions.

SPL

• Implement SeekableIterator for SplObjectStorage.
• The SplFixedArray::wakeup() method has been deprecated as it implements serialize() and __unserialize() which need to be overwritten instead.
• Passing a non-empty string for the $escape parameter of: - SplFileObject::setCsvControl() - SplFileObject::fputcsv() - SplFileObject::fgetcsv() is now deprecated.

Standard

• Implement GH-12188 (Indication for the int size in phpinfo()).
• Partly fix GH-12143 (Incorrect round() result for 0.49999999).
• Fix GH-12252 (round(): Validate the rounding mode).
• Increase the default BCrypt cost to 12.
• Fixed bug GH-12592 (strcspn() odd behaviour with NUL bytes and empty mask).
• Removed the deprecated inet_ntoa call support.
• Cast large floats that are within int range to int in number_format so the precision is not lost.
• Add support for 4 new rounding modes to the round() function.
• debug_zval_dump() now indicates whether an array is packed.
• Fix GH-12143 (Optimize round).
• Changed return type of long2ip to string from string|false.
• Fix GH-12143 (Extend the maximum precision round can handle by one digit).
• Added the http_get_last_response_headers() and http_clear_last_response_headers() that allows retrieving the same content as the magic $http_response_header variable.
• Add php_base64_encode_ex() API.
• Implemented "Raising zero to the power of negative number" RFC.
• Added array_find(), array_find_key(), array_all(), and array_any().
• Change highlight_string() and print_r() return type to string|true.
• Fix references in request_parse_body() options array.
• Add RoundingMode enum.
• Unserializing the uppercase 'S' tag is now deprecated.
• Enables crc32 auxiliary detection on OpenBSD.
• Passing a non-empty string for the $escape parameter of: - fputcsv() - fgetcsv() - str_getcsv() is now deprecated.
• The str_getcsv() function now throws ValueErrors when the $separator and $enclosure arguments are not one byte long, or if the $escape is not one byte long or the empty string. This aligns the behaviour to be identical to that of fputcsv() and fgetcsv().
• php_uname() now throws ValueErrors on invalid inputs.
• The "allowed_classes" option for unserialize() now throws TypeErrors and ValueErrors if it is not an array of class names.
• Implemented GH-15685 (improve proc_open error reporting on Windows).
• Add support for backed enums in http_build_query().
• Fixed bug GH-15982 (Assertion failure with array_find when references are involved).
• Fixed parameter names of fpow() to be identical to pow().

Streams

• Implemented GH-15155 (Stream context is lost when custom stream wrapper is being filtered).

Tidy

• Failures in the constructor now throw exceptions rather than emitting warnings and having a broken object.
• Add tidyNode::getNextSibling() and tidyNode::getPreviousSibling().

Windows

• Update the icon of the Windows executables, e.g. php.exe.
• Fixed bug GH-16199 (GREP_HEADER() is broken).

XML

• Added XML_OPTION_PARSE_HUGE parser option.
• Fixed bug #81481 (xml_get_current_byte_index limited to 32-bit numbers on 64-bit builds).
• The xml_set_object() function has been deprecated.
• Passing non-callable strings to the xml_set_*_handler() functions is now deprecated.

XMLReader

• Declares class constant types.
• Add XMLReader::fromStream(), XMLReader::fromUri(), XMLReader::fromString().
• Fixed bug GH-15123 (var_dump doesn't actually work on XMLReader).

XMLWriter

• Add XMLWriter::toStream(), XMLWriter::toUri(), XMLWriter::toMemory().

XSL

• Implement request #64137 (XSLTProcessor::setParameter() should allow both quotes to be used).
• Implemented "Improve callbacks in ext/dom and ext/xsl" RFC.
• Added XSLTProcessor::$maxTemplateDepth and XSLTProcessor::$maxTemplateVars.
• Fix trampoline leak in xpath callables.

Zip

• Added ZipArchive::ER_TRUNCATED_ZIP added in libzip 1.11.