PHP NEWS

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10 Sep 2026, PHP 8.6.0beta3

- BCMath:

. Fixed out-of-bounds read in bc_is_zero_for_scale() when scale exceeds

n_scale. (Ilia Alshanetsky)

- Core:

. Fixed out-of-bounds reads during automatic UTF-16/32 encoding detection.

(Yudai Takada)

. Calling is_a() or is_subclass_of() with a string as the first argument

when $allow_string is false is now deprecated. (Daniel Scherzer)

. Fixed bug GH-23232 (lone namespace separator asks the autoloader for an

empty class name). (spawnia)

- CLI:

. Fixed bug GH-23242 (PHP development server does not support Expect

100-continue flow control). (Sjoerd Langkemper)

- DOM:

. Fixed NamedNodeMap::getNamedItemNS() with an empty URI not matching

the null namespace in spec-following mode. (Ilia Alshanetsky)

. Fixed stale getElementsByClassName() and other node list caches after

className/classList writes and attribute removals. (Ilia Alshanetsky)

- Hash:

. Fixed hash_file() reporting argument #1 ($algo) instead of argument #2

($filename) when the filename contains null bytes. (lacatoire)

- Intl:

. Fixed grapheme_strpos() and grapheme_strrpos() with an empty needle

returning UTF-16 offsets instead of grapheme offsets. (Ilia Alshanetsky)

. Fixed a memory leak when dumping IntlCalendar instances. (Ilia Alshanetsky)

. Fixed Collator::sortWithSortKeys() allocating fixed 2MiB buffers

regardless of array size. (Ilia Alshanetsky)

. Fixed a memory leak when iterating IntlBreakIterator::getPartsIterator()

results. (iliaal)

. Fixed a leak in Locale::getKeywords() when a keyword value cannot be

read. (iliaal)

. Fixed a use-after-free when IntlRuleBasedBreakIterator is constructed

from compiled rules. (iliaal)

. Fixed Spoofchecker methods not recording the ICU error code when an ICU

call fails. (Ilia Alshanetsky)

. Fixed idn_to_ascii() and idn_to_utf8() reporting argument #2 ($flags)

instead of argument #3 ($variant) for an invalid IDNA variant, and the

domain length error message printing a literal "d" instead of the limit.

(lacatoire)

- MBString:

. Fixed mb_ereg_replace() emitting a NUL or out-of-bounds bytes in the

replacement when a \k<name> backref has no closing delimiter.

(Ilia Alshanetsky)

- ODBC:

. Fixed odbc_field_len(), odbc_field_scale() and odbc_field_type()

returning uninitialized memory when SQLColAttribute fails.

(Ilia Alshanetsky)

. odbc_error() and odbc_errormsg() now also report SQLColAttribute

failures. (Ilia Alshanetsky)

- PCNTL:

. Fixed the declared signature of pcntl_signal(), whose $restart_syscalls

argument accepts null and defaults to it. (lacatoire)

- PDO_PGSQL:

. Added Pdo\Pgsql::ATTR_CHUNK_SIZE to fetch a result set in chunks of the

given number of rows. (KentarouTakeda)

- PGSQL:

. Fixed the pg_insert(), pg_update() and pg_delete() flag error messages,

which did not name the set of flags actually accepted. (lacatoire)

- Phar:

. Fixed bug GH-23418 (Use-after-free when looking up mounted directories).

(Weilin Du)

. Fixed bug GH-23477 (Memory leak on duplicate native Phar manifest entries).

(Weilin Du)

- Sockets:

. Fixed socket_set_option() with SO_ATTACH_REUSEPORT_CBPF and a zero value,

which detached the classic BPF filter instead of the reuseport program.

(David Carlier)

- SOAP:

. Fixed WSDL cache corruption when a soap:header defines headerfaults.

(Ilia Alshanetsky)

. Fixed stack overflow when parsing a WSDL with self-referential schema

groups or attributeGroups. (Ilia Alshanetsky)

- Sodium:

. Added support for the libsodium 1.0.22 KEM APIs (X-Wing and ML-KEM768).

(Zachary DuBois)

- Standard:

. Fixed a segfault when a stream filter callback unsets StreamBucket::$data

before re-attaching the bucket. (iliaal)

. Fixed an out-of-bounds read when following a redirect response with an

empty Location header. (iliaal)

. Fixed read buffer compaction in php_stream_filter_flush(). (crystarm)

. Io\Poll\Context::wait() now rejects a $maxEvents value greater than

INT_MAX instead of truncating it. (marc-mabe)

. Fixed GH-23338 (fsockopen()/pfsockopen() ValueError reported wrong

argument number for $timeout). (lacatoire)

. Fixed bug GH-23576 (Next index for array returned from array_keys() is

wrong). (Lazizbek Ergashev)

- SimpleXML:

. Fixed writing to a dimension of the object returned by attributes() not

creating the attribute. (Ilia Alshanetsky)

. Fixed child elements of the element returned by

SimpleXMLElement::addChild() not being accessible by property name when

namespaces are involved. (Ilia Alshanetsky)

- Streams:

. Added so_rcvbuf and so_sndbuf stream socket context options, setting the

socket receive and send buffer sizes in bytes. (David Carlier)

27 Aug 2026, PHP 8.6.0beta2

- Core:

. Fixed bug GH-15375 (Nested "yield from" skips items after a valid() or

next() call on the inner generator). (iliaal)

. Fixed GH-10497 (Allow direct mutation of objects stored in constants or

class constants via OBJ->prop = $val). (Khaled Alam)

. Reverted GH-22833, which attempted to fix bug GH-18985. (ilutov)

. Using the return statement in a finally block is now deprecated.

(aldemeery)

- Curl:

. Set content length using CURLOPT_POSTFIELDSIZE_LARGE instead of

CURLOPT_POSTFIELDSIZE. This makes it possible to post strings larger than

2GB on some platforms, e.g. Windows. (Sjoerd Langkemper)

- DOM:

. Fixed a typo in the DOMException message for INUSE_ATTRIBUTE_ERR.

(Weilin Du)

. Fixed bug GH-22624 (use-after-free via DOMNameSpaceNode after

DOMDocument::xinclude()). (David Carlier)

. Fixed a use-after-free when cloning a DOMNameSpaceNode after

DOMDocument::xinclude(). (iliaal)

. Fixed a crash in DOMXPath when a php:function callback receives a nodeset

and a later callback returns a node from another document. (iliaal)

. Fixed bug GH-23331 (UAF when node_list_unlink() skips attribute children

that still have a live wrapper). (iliaal)

. Fixed a use-after-free when Dom\Element::setAttributeNS() replaces the

value of an attribute whose child still has a live wrapper. (iliaal)

- GD:

. Fixed imageaffinematrixget() and imageaffinematrixconcat() reporting the

wrong argument in error messages. (Weilin Du)

. Fixed imageaffinematrixget() to enforce the documented array|float type

for the $options parameter. (Weilin Du)

- Intl:

. Fixed grapheme_strrev() treating UBRK_DONE as a byte index and leaving

the result without a terminating NUL. (iliaal)

. Fixed a double-free when IntlGregorianCalendar construction fails after

the ICU constructor adopts the TimeZone. (iliaal)

. Fixed bug GH-23094 (NumberFormatter parsing offsets use UTF-16 positions

for UTF-8 strings). (ColumbusLabs)

. Fixed Locale::parseLocale() reading past a trailing '-' or '_'.

(iliaal, Xuyang Zhang)

. Fixed grapheme_str_split() treating UBRK_DONE as a byte index. (iliaal)

- Opcache:

. Fixed a tracing JIT crash when compiling a side trace for a method of a

class that could not be stored in the inheritance cache. (GH-21710)

(Arnaud, iliaal)

- PDO:

. Fixed a leak when a persistent connection failed a liveness check

with no other live PDO handle. (iliaal)

- PDO_PGSQL:

. Fixed several lazy fetch (PDO::ATTR_PREFETCH => 0) defects: an infinite

loop when cleaning up a fetch left in a COPY, a use-after-free when a

statement with emulated or disabled prepares is destroyed, a connection

left busy for the next fetch, and rows delivered from a result another

statement took over. (KentarouTakeda)

- PGSQL:

. Fixed the class name casing of pg_close_stmt()'s connection parameter.

(lacatoire)

- Phar:

. Fixed Phar archives being automatically detected when ".phar" only occurs

in a directory name or is not a filename extension in an included file's

path. (Weilin Du)

- Readline:

. Fixed class constant completion in the interactive shell. (Weilin Du)

- Zip:

. Fixed bug GH-23276 (ZipArchive subclass storing its own stream cannot be

garbage collected). (Weilin Du, ndossche)

- SAPI:

. Fixed fuzzer targets failing to build in isolation. (Mrmaxmeier)

. Fixed returns uninitialized value on LiteSpeed lsapi SAPI (Go Kudo)

- Session:

. Fixed bug GH-23056 (missing handler name in session write warning).

(lazerg)

. SessionHandler::validateId() is now implemented, so

session.use_strict_mode applies to the built-in handler. (Girgias)

. It is now deprecated to pass an object that does not implement the

create_sid() and validateId() methods. (Girgias)

. A deprecation is now emitted when implementing SessionHandlerInterface on a

class which doesn't define the create_sid() or validateId() methods, as

those will be moved from SessionUpdateTimestampHandlerInterface and

SessionIdInterface to SessionHandlerInterface. (Girgias)

- SNMP:

. It is now possible to use the AES192, AES192C, AES256, and AES256C as

SNMPv3 security protocols if the underlying library supports them.

(eskyuu)

. It is now possible to reset the MIB tree using the new snmp_init_mib()

function. (eskyuu)

. Additional MIB parsing and output control functionality has been exposed

via the snmp_set_mib_option(), snmp_set_output_option(),

snmp_set_string_output_format() functions, the $numeric_index,

$numeric_timeticks, $extended_index, $dont_print_units, $escape_quotes,

$print_hex_text SNMP properties, and the SNMP::setOidOutputFormat(),

SNMP::setStringOutputFormat() methods. (eskyuu)

- Sodium:

. Fixed incorrect parameter name in sodium_add(), sodium_memcmp(), and

sodium_compare() length-mismatch error messages. (lacatoire)

- SPL:

. The following SplFileObject methods have been deprecated

SplFileObject::fgetcsv(), SplFileObject::fputcsv(),

SplFileObject::setCsvControl(), and SplFileObject::getCsvControl().

(Girgias)

- Standard:

. Fixed incorrect parameter name in convert_uudecode() warning. (lacatoire)

. Added support for the "<" and ">" endianness modifiers in pack() and

unpack() format codes. (alexandre-daubois)

- Zip:

. Fixed bug GH-17787 (ZipArchive stream stops reading early when the archive

is freed while the stream is still open). (Eyüp Can Akman)

- Zlib:

. Fixed bug GH-22142 (Assertion failure in deflate_init() when an option

object has uninitialised typed properties). (David Carlier)

13 Aug 2026, PHP 8.6.0beta1

- Core:

. Deprecated "namespace" as a class constant name. (NickSdot)

. Changed run-tests.php to run in parallel by default, using up to 10

automatically detected workers. Pass -j1 for sequential execution.

(NickSdot)

. Allowed readonly properties to declare default values. (NickSdot)

. Changed run-tests.php to run test subprocesses without a shell where

possible. (NickSdot)

. Fixed GH-23083 (SEGV build_trace_args in zend_exceptions.c with

-d error_include_args=On). (David Carlier)

. Fixed GH-23121 (is_callable() wrongly accepts objects with no get_closure

handler). (David Carlier)

. Passing a 3rd argument to define() is now deprecated. (Girgias)

. Naming a function readonly is now deprecated. (Girgias)

. Added stateless closure cache. (ilutov)

- BZ2:

. Passing an object for the Bzip2 {de}compression stream filter is now

deprecated. Use get_object_vars() on the object instead. (Girgias)

- Curl:

. Improved cURL option validation errors to include the option name.

(Sjoerd Langkemper)

. Raise a value error when the callback registered with CURLOPT_READFUNCTION

returns an unexpected long. (Sjoerd Langkemper)

. Fix bug GH-16513 (curl: exceptions in callbacks do not abort the request).

(Sjoerd Langkemper)

- Date:

. Update timelib to 2026.02. (Derick, timwolla)

. Added Time\Duration. (timwolla, Derick)

- DOM:

. Fixed bug GH-23116 (Stack overflow when normalizing a deeply nested

DOMDocument). (Lazizbek Ergashev)

. Fixed bug GH-23117 (Stack overflow when normalizing a deeply nested

Dom\XMLDocument). (Lazizbek Ergashev)

- Exif:

. Fixed exif_read_data() allocating a HEIF meta box larger than the file

it came from. (iliaal)

- GMP:

. Added optional $definitely_prime output parameter to gmp_prevprime().

(Weilin Du)

. Added gmp_powm_sec(). (Weilin Du)

- Intl:

. Added static methods IntlDatePatternGenerator::getSkeleton() and

IntlDatePatternGenerator::getBaseSkeleton(). (Weilin Du)

. Fixed Collator::sort(), collator_sort(), Collator::asort(), and

collator_asort() to report UTF-8/UTF-16 conversion errors through the intl

error handler instead of emitting a warning and continuing with an empty

string. (Weilin Du)

. Fixed IntlListFormatter::__construct() leaving stale global error state

after successful calls. (Weilin Du)

. Fixed IntlNumberRangeFormatter leaving stale global error state after

successful createFromSkeleton() and format() calls. (Weilin Du)

. Implemented GH-20255 (Add a predefined calendar constant in

IntlDateFormatter for the proleptic gregorian calendar). (David Carlier)

. Added SpoofChecker::areBidiConfusable(). (David Carlier)

. Added SpoofChecker::getBidiSkeleton(). (Weilin Du)

. Added SpoofChecker::getSkeleton(). (David Carlier)

. Fixed IntlNumberRangeFormatter::format() crash when the formatting fails.

(David Carlier)

- MbString:

. Passing objects to mb_convert_variables() is now deprecated. (Girgias)

- MySQLi:

. The mysqli_get_charset() function and mysqli::get_charset() method are now deprecated. (Kamil Tekiela)

. The mysqli_stmt_init() function and mysqli::stmt_init() method are now deprecated. (Kamil Tekiela)

. Instantiation of mysqli_stmt without providing the $query parameter is now deprecated. (Kamil Tekiela)

- PDO:

. Fixed pdo_raise_impl_error() emitting a warning under ERRMODE_SILENT.

(iliaal)

- PDO_ODBC:

. Fixed bug GH-23016 (NULL values in long columns come back as garbage

binary strings). (Calvin Buckley, iliaal)

- Readline:

. Fixed the interactive shell not waiting for the pager process to exit.

(Weilin Du)

- Reflection:

. Added ReflectionAttribute::inNamespace(),

ReflectionAttribute::getNamespaceName(), and

ReflectionAttribute::getShortName(). (Girgias)

. Fixed bug GH-22905 (Reflection exception messages truncate on null bytes).

(DanielEScherzer)

. Fixed ReflectionProperty::isLazy() and skipLazyInitialization() using the

parent slot when a child class hooks an inherited property. (iliaal)

. Fixed segfault in ReflectionMethod::createFromMethodName() on an

uninstantiable subclass. (iliaal)

- SimpleXML:

. Fixed integer element offsets that cannot resolve aliasing an existing

element. (iliaal)

. SimpleXMLElement::__construct() now raises a ValueError when the $data

argument contains NUL bytes. (iliaal)

. Fixed segfault when comparing uninitialized SimpleXMLElement

instances. (iliaal)

- SPL:

. The spl_classes() function is now deprecated, use

ReflectionExtension::getClassNames() instead. (Girgias)

. The spl_object_hash() function is now deprecated, use spl_object_id()

instead. (Girgias)

. The following ArrayIterator methods are now deprecated:

* ArrayIterator::getFlags()

* ArrayIterator::setFlags()

* ArrayIterator::asort()

* ArrayIterator::ksort()

* ArrayIterator::uasort()

* ArrayIterator::uksort()

* ArrayIterator::natsort()

* ArrayIterator::natcasesort()

* ArrayIterator::unserialize()

* ArrayIterator::serialize()

(Girgias)

- Standard:

. Passing an object as the $data argument to http_build_query() is now

deprecated. The interpretation of object values within $data as arrays

is also deprecated. Convert objects to arrays with get_object_vars()

before calling the function. (Girgias)

. Added the "filter.max_filter_count" stream context option for php://filter

URLs. Using more than 16 filters without configuring this option is now

deprecated. (Sjoerd Langkemper)

. The metaphone() function is now deprecated, use a userland phonetic

matching library instead. (Weilin Du)

. Improved performance of array_intersect(). (mehmetcansahin)

. Fixed bug GH-23006 (phpcredits() full-page HTML title says phpinfo()).

(Weilin Du)

. The following functions now raise a ValueError when the $filename argument

contains NUL bytes: fileperms(), fileinode(), filesize(), fileowner(),

filegroup(), fileatime(), filemtime(), filectime(), filetype(),

is_writable(), is_readable(), is_executable(), is_file(), is_dir(),

is_link(), file_exists(), lstat(), stat(). (Girgias)

. Fixed bug GH-22818 (stream_filter_register() orphaned user_filter_map on

shutdown re-registration). (David Carlier)

. Io\Poll\Context::wait() now takes a Time\Duration object as a timeout.

(timwolla)

. Passing an object to array_walk{_recursive} is now deprecated. Use

get_object_vars() on the object instead. (Girgias)

. The is_double() function is now deprecated, use is_float() instead.

(Girgias)

. The is_long() and is_integer() functions are now deprecated, use is_int()

instead. (Girgias)

. The doubleval() function is now deprecated, use floatval() instead.

(Girgias)

. The strcoll() function is now deprecated, use Collator::compare() instead.

(Girgias)

. The SORT_LOCALE_STRING constant for the family of sort functions is now

deprecated, use one of the following functions instead:

* Collator::sort()

* Collator::asort()

* Collator::sort()

* Collator::sortWithSortKeys()

(Girgias)

- Streams:

. Fixed file_put_contents() LOCK_EX early return leaking stream error

operation depth. (iliaal)

- XSL:

. Fixed use-after-free when a DOMDocument subclass __clone() retains the

stylesheet copy made by XSLTProcessor::importStylesheet(). (iliaal)

- Zlib

. Passing an object for the zlib deflate and inflate stream filter is now

deprecated. Use get_object_vars() on the object instead. (Girgias)

. Passing an object to the $option argument to deflate_init and inflate_init

is now deprecated. Use get_object_vars() on the object instead. (Girgias)

30 Jul 2026, PHP 8.6.0alpha3

- Core:

. Implemented partial function application RFC. (Arnaud)

. Fixed bug GH-22263 (reset typed property default on every unserialize

failure path). (David Carlier)

. Fixed bug GH-18985 (Wrong line numbers for match with constant arms).

(ilutov)

. Fixed bug GH-18847 (SEGV in zend_fetch_debug_backtrace() when the memory

limit is reached while the tracing JIT enters a call frame). (Arnaud,

iliaal)

- DOM:

. Fixed bug GH-22825 (DOMElement::setAttribute() fails silently when the DTD

declares a default value for the attribute). (iliaal)

. Fixed bug GH-23120 (Stack overflow when comparing deeply nested DOM nodes

with DOMNode::isEqualNode()). (Weilin Du)

- Embed:

. Made php-cli functionality available in embed builds. (henderkes)

- GMP:

. Added gmp_prevprime(). (Weilin Du, David Carlier)

. Fixed GMP power and shift operators to reject GMP right operands outside

the unsigned long range instead of silently truncating them. (Weilin Du)

. Fixed GMP integer string parsing to reject strings containing NUL bytes

instead of silently truncating them. (Weilin Du)

. Fixed GMP error messages that referenced outdated parameter names.

(Weilin Du)

- Intl:

. Fixed grammatical issues in Normalizer invalid form and IntlCalendar time

zone offset error messages. (Weilin Du)

. Removed the dependency on the ICU IO library. (Weilin Du)

- ODBC:

. Fixed bug GH-22668 (Heap buffer over-read when a column value exceeds the

driver-reported display size). (iliaal)

- Opcache:

. Re-enable JIT for ZTS builds on Apple Silicon. (realFlowControl)

- PDO_ODBC:

. Fixed bug GH-22667 (Heap buffer over-read when a column value exceeds the

driver-reported display size). (iliaal)

. Fixed bug GH-22666 (Heap buffer overflow when an output parameter value is

longer than the declared maxlen). (iliaal)

. Fixed bug GH-22665 (Out-of-bounds write when the ODBC driver reports a

diagnostic message length beyond the error buffer). (iliaal)

- Phar:

. Fixed grammatical issues and outdated terminology in Phar error messages.

(Weilin Du)

- Reflection:

. Fixed bug GH-22681 (Reflection*::__toString() truncates on null bytes).

(DanielEScherzer)

- SOAP:

. Fixed header injection through the Content-Type context option, the

soapaction and the cookie names and values. (David Carlier)

. Fixed the SoapClient and SoapServer "classmap" option to reject arrays

containing integer keys, and made SoapClient throw TypeError/ValueError

for invalid "classmap" options. (Weilin Du, David Carlier)

- MBString:

. Fixed bug GH-22779 (mb_strrpos() returns the wrong position for a negative

offset in a non-UTF-8 encoding). (Eyüp Can Akman)

. Fixed bug GH-21036 (mb_ereg_search_getregs() crashes after mb_eregi()

invalidates the regex cache). (Matthias Goergens)

- PCRE:

. Fixed bug GH-21134 (Crash with \C + UTF-8). Using \C in UTF-8 patterns is

now forbidden. (Arnaud)

- Sockets:

. Fixed socket_set_option() validation error messages for UDP_SEGMENT and

TCP_USER_TIMEOUT, and SO_LINGER options. (Weilin Du)

. Fixed various memory related issues in ext/sockets. (David Carlier)

- Standard:

. Fixed setlocale() to reject locale names containing NUL bytes instead of

silently truncating them, and to reject arrays passed after the $locales

argument or additional arguments passed after an array $locales argument.

(Weilin Du)

- Streams:

. Added a new IO copy API used by php_stream_copy_to_stream_ex() that

leverages platform primitives (sendfile, splice, copy_file_range,

TransmitFile) for faster stream copying. (Jakub Zelenka, David Carlier)

. Fixed bug GH-22841 (php_stream_copy_to_stream_ex() drops progress

notifications when using the copy fast path). (David Carlier)

. Fixed bug GH-15836 (Use-after-free when a user stream filter accesses

$this->stream during the close flush). (iliaal)

16 Jul 2026, PHP 8.6.0alpha2

- Core:

. Sync Boost.Context assembly with 1.91.0. (kn1g78)

. Fixed bug GH-22387 (AST pretty-printing drops meaningful parentheses around

RHS of instanceof). (timwolla)

. Fixed bug GH-15672 and GH-15911 (Stack overflow when an internal function

recurses through zend_call_function, such as a self-attached SPL

iterator). (iliaal)

. Lock unmodified readonly properties for modification after clone-with.

(NickSdot)

. abort() instead of exit() on hard OOM. (realFlowControl)

. perf: ZTS: move AG and SCNG into native __thread storage. (henderkes)

- Calendar:

. Fixed bug GH-22602 (gregoriantojd() and juliantojd() integer overflow with

INT_MAX year). (arshidkv12)

- Curl:

. Added CURLOPT_SEEKFUNCTION and the CURL_SEEKFUNC_OK, CURL_SEEKFUNC_FAIL

and CURL_SEEKFUNC_CANTSEEK constants, letting libcurl rewind a streamed

request body to resend it on a redirect, multi-pass authentication or a

retried reused connection. (GrahamCampbell)

- Date:

. Update timelib to 2022.17. (Derick)

. Fixed bug GH-19803 (Parsing a string with a single white space does create

an error). (Derick)

. Fixed Unix timestamps in February of the year 0 are misparsed with

@-notation. (LukasGelbmann)

. Fixed bug GH-11368 (idate() doesn't work for the year -1). (Derick)

. Fixed bug GH-11310 (__debugInfo does nothing on userland classes extending

Date classes). (Derick)

- DBA:

. Fixed OOB read on malformed length field in dba flatfile handler. (alhudz)

- DOM:

. Fixed bug GH-22570 (Stack overflow when serializing a deeply nested

Dom\XMLDocument). (iliaal)

. Fixed Dom\DtdNamedNodeMap integer dimension access so negative indexes

return NULL and indexes outside the int range throw ValueError instead of

returning the first entity or notation. (Weilin Du)

. Fixed bug GH-22623 (use after free with namespace nodes from

XSLTProcessor::registerFunctions())/ (David Carlier)

. Fixed bug GH-22554 (use-after-free with XPath callback returning a node

from a foreign document). (David Carlier)

- Exif:

. Fixed bug GH-11020 (exif_read_data() emits a spurious "Illegal IFD size"

warning when an IFD is not followed by a next-IFD offset). (Eyüp Can Akman)

- GMP:

. Fixed bug GH-22549 (Assertion failure / UB on a compound GMP power or shift

assignment with a negative exponent). (iliaal)

- Intl:

. Fixed NumberFormatter::parse() and NumberFormatter::parseCurrency() to

reject offset values outside the 32-bit range instead of silently

truncating them. (Weilin Du)

. IntlDateFormatter::parse()/datefmt_parse() and

IntlDateFormatter::localtime()/datefmt_localtime() now raise TypeError

when the offset argument is not of type int. (Weilin Du)

- JSON:

. Report unterminated JSON strings as syntax errors. (timwolla)

. Improve performance error position tracking during JSON decoding.

(henderkes)

. Fixed bug GH-22514 (Incorrect error column in PHP 8.6 JSON parser).

(henderkes, timwolla)

- Opcache:

. Fixed bug GH-21770 (Infinite recursion in property hook getter in opcache

preloaded trait). (iliaal)

- OpenSSL:

. Added $salt_length parameter to openssl_sign() and openssl_verify() with

new OPENSSL_RSA_PSS_SALTLEN_* constants. (Jakub Zelenka)

. Fixed timeout for supplemental read at end of a blocking stream in SSL

stream wrapper. (ilutov)

. Fixed stream_socket_get_crypto_status() after supplemental read. (ilutov)

- PDO_ODBC:

. Fixed bug GH-20726 (Crash with ODBC connection pooling when the DSN

carries no credentials). (iliaal)

- PHPDBG:

. Fixed fleaked lowercased lookup keys in phpdbg_resolve_opline_break.

(jorgsowa)

. Fixed off-by-one in phpdbg_safe_class_lookup() causing class lookups to

always fail during phpdbg's signal-safe interruption path. (jorgsowa)

- Reflection:

. Fixed bug GH-22683 (Reflection(Class)Constant::__toString() should not warn

on NAN conversions). (Khaled Alam)

. Fixed bug GH-22681 (Reflection*::__toString() truncates on null bytes).

(DanielEScherzer)

- Session:

. Fixed bug GH-21314 (Different session garbage collector behavior between

PHP 8.3 and PHP 8.5). (jorgsowa)

- SOAP:

. Fixed bug GH-22585 (OOM on bailout with uninitialized

do_request() parameters). (David Carlier)

. Fixed xsd:hexBinary decoding to reject odd-length values instead of

silently truncating the last nibble. (Weilin Du)

. Made SOAP encoding errors report the affected type or failing operation

instead of the generic "Violation of encoding rules" message. (Weilin Du)

- Standard:

. Fixed sleep() and usleep() to reject values that overflow the underlying

unsigned int timeout. (Weilin Du)

. Fixed bug GH-22671 (assert.bail aborts the process when the assert callback

throws an exception whose reporting re-throws). (iliaal)

. Fixed bug GH-22678 (Use-after-free in array_multisort() when the comparator

mutates the array being sorted). (azchin, iliaal)

- Streams:

. Fixed bug GH-21468 (Segfault in file_get_contents w/ a https URL

and a proxy set). (CVE-2026-12184) (ndossche)

- URI:

. Fixed bug GH-22628 (Percent-encoding of caret in WHATWG URL paths is not

performed). (kocsismate)

. Fixed bug GH-22629 (WHATWG Validation error incorrect with empty host and

non-empty userinfo). (kocsismate)

- Zip:

. Fixed bug GH-22649 (ZipArchive::setCommentName() and setCommentIndex()

could crash after overwriting an entry and resetting its inherited

unchanged comment). (Weilin Du)

. Fixed bug GH-21705 (ZipArchive::getFromIndex() ignores

ZipArchive::FL_UNCHANGED for deleted entries). (Weilin Du)

. Fixed bug GH-22176 (memory leak with ZipArchive::registerCancelBack()

is used with reference returning function during shutdown).

(David Carlier)

. ZipArchive::addGlob() and ZipArchive::addPattern() now raise a TypeError

for invalid "remove_all_path", "comp_method", "comp_flags", and

"enc_method" options instead of emitting a warning. (David Carlier)

02 Jul 2026, PHP 8.6.0alpha1

- Core:

. Added first-class callable cache to share instances for the duration of the

request. (ilutov)

. It is now possible to use reference assign on WeakMap without the key

needing to be present beforehand. (ndossche)

. Added `clamp()`. (kylekatarnls, thinkverse)

. Fix OSS-Fuzz #429429090 (Failed assertion on unset() with uninitialized

container). (ilutov)

. Fixed GH-20564 (Don't call autoloaders with pending exception). (ilutov)

. Fix deprecation not showing when accessing null key of an array with JIT.

(alexandre-daubois)

. Fixed bug GH-20174 (Assertion failure in

ReflectionProperty::skipLazyInitialization after failed LazyProxy

initialization). (Arnaud)

. Enabled the TAILCALL VM on Windows when compiling with Clang >= 19 x86_64.

(henderkes)

. Deprecate specifying a nullable return type for __debugInfo(). (timwolla)

. Fixed bug GH-22142 (Assertion failure in zendi_try_get_long() on IS_UNDEF).

(David Carlier)

. Fixed bug GH-22046 (The unserialize function can lead to segfault when

non-Serializable internal classes are serialized back with the C format).

(kocsismate)

. Fixed bug GH-22292 (AST pretty printing does not correctly handle invalid

variable names). (timwolla)

. Fixed bug GH-22291 (AST pretty printing does not correctly handle braces in

string interpolation). (timwolla)

. Fixed bug GH-22373 (AST pretty-printing drops meaningful parentheses

surrounding property access). (timwolla)

. Fixed GH-22422 (zend_arena layout mismatch leaked memory in separately

built extensions under AddressSanitizer). (iliaal)

. TSRM: use local-exec TLS in PIE executables. (henderkes)

. perf: make all static extensions use TSRMG_STATIC. (henderkes)

. Fixed bug GH-22257 (type confusion in Exception::getTraceAsString()).

(David Carlier)

. TSRM: make CG, EG, SCNG and AG compile-time offsets. (henderkes)

. Deprecate returning values from __construct() and __destruct(). (timwolla)

. base_convert, bindex, hexdec and octdec now raise a notice when they cannot

precisely convert the given number. (Sjoerd Langkemper)

. Added error_include_args INI option to make the display of function

arguments consistent in error output. (Calvin Buckley)

- BCMath:

. Added NUL-byte validation to BCMath functions. (jorgsowa)

- BZ2:

. Reject oversized input in bzdecompress(). (arshidkv12)

- Curl:

. Add support for CURLINFO_SIZE_DELIVERED (libcurl >= 8.20.0). (Ayesh)

- Date:

. Update timelib to 2022.16. (Derick)

- DOM:

. Removed LIBXML_XINCLUDE from valid options for XMLDocument, as it was a

no-op. (ndossche)

. Readonly DOM properties are now declared with asymmetric visibility

(public private(set)). ReflectionProperty::isWritable() reports them

correctly, and external writes raise "Cannot modify private(set)

property" instead of the previous readonly modification error.

(David Carlier)

. Fixed Dom\Notation nodes missing tree connection, so that ownerDocument,

parentNode, isConnected and baseURI now return correct values, and

textContent returns NULL per the DOM specification. (jordikroon)

- EXIF:

. Added support for reading EXIF metadata from WebP images (GH-19904).

(iliaal)

- Fileinfo:

. Fixed bug GH-20679 (finfo_file() doesn't work on remote resources).

(ndossche)

. Fixed bug #66095 (Hide libmagic dynamic symbols). (orlitzky)

- GD:

. imagesetstyle()/imagefilter()/imagecrop() check array argument entries

types. (David Carlier)

- GMP:

. gmp_fact() reject values larger than unsigned long. (David Carlier)

. gmp_pow/binomial/root/rootrem and shift/pow operators reject values larger

than unsigned long. (David Carlier)

. GMP exponentiation and shift operators now emit a deprecation warning

when converting a float right operand to int loses precision. (Weilin Du)

- Hash:

. Upgrade xxHash to 0.8.2. (timwolla)

- Intl:

. Fixed malformed ResourceBundle::get() error message when fallback is

disabled. (Weilin Du)

. Added Locale::getDisplayKeyword() and Locale::getDisplayKeywordValue(),

with the alias of locale_get_display_keyword() and

locale_get_display_keyword_value() respectively. (Weilin Du)

. Fix incorrect argument positions for invalid start/end arguments in

transliterator_transliterate(). (Weilin Du)

. Fixed IntlTimeZone::getDisplayName() to synchronize object error state

for invalid display types. (Weilin Du)

. Fixed Locale::lookup() and locale_lookup() to return NULL instead of the

fallback locale when a language tag cannot be canonicalized. (Weilin Du)

. Added IntlNumberRangeFormatter class to format an interval of two numbers

with a given skeleton, locale, collapse type and identity fallback.

(BogdanUngureanu)

. Fixed bug GH-20426 (Spoofchecker::setRestrictionLevel() error message

suggests missing constants). (DanielEScherzer)

. Added grapheme_strrev (Yuya Hamada)

. Passing a non-stringable object as a time zone to Intl time zone

argument handling now raises TypeError instead of Error. (Weilin Du)

. IntlBreakIterator::getLocale() now raises ValueError for invalid locale

types. (Weilin Du)

. Fixed MessageFormatter::parse() and parseMessage() returning PHP_INT_MIN

as float rather than int on 64-bit platforms. (Weilin Du)

. Fixed UConverter::transcode() silently truncating from_subst and to_subst

option lengths greater than 127 bytes. (Weilin Du)

. Fixed IntlIterator::current() to return NULL instead of an undefined value

when the iterator is not positioned on a valid element. (Weilin Du)

- IO:

. Added new polling API. (Jakub Zelenka)

- JSON:

. Enriched JSON last error / exception message with error location.

(Juan Morales)

- Fibers:

. Fixed bug GH-20483 (ASAN stack overflow with fiber.stack_size INI small

value). (David Carlier)

- Mail:

. Fixed bug GH-20862 (null pointer dereference in

php_mail_detect_multiple_crlf via error_log (jordikroon)

- Mbstring:

. ini_set() with mbstring.detect_order changes the order of mb_detect_order

as intended, since mbstring.detect_order is an INI_ALL setting. (tobee94)

. Added GB18030-2022 to default encoding list for zh-CN. (HeRaNO)

. Fixed bug GH-20836 (Stack overflow in mb_convert_variables with

recursive array references). (alexandre-daubois)

. Fixed bug GH-21223; mb_guess_encoding no longer crashes when passed huge

list of candidate encodings (with 200,000+ entries). (Jordi Kroon)

. mbregex has been deprecated. (youkidearitai)

- Mysqli:

. Added mysqli_quote_string() and mysqli::quote_string(). (Kamil Tekiela)

- Opcache:

. Fixed bug GH-20051 (apache2 shutdowns when restart is requested during

preloading). (Arnaud, welcomycozyhom)

- OpenSSL:

. Added AES-SIV support. (jordikroon)

. Implemented GH-20310 (No critical extension indication in

openssl_x509_parse() output). (StephenWall)

. Added TLS session resumption support for streams with new context options

and Openssl\Session class. (Jakub Zelenka)

. Added TLS external PSK support for streams with new context options and

Openssl\Psk class. (Jakub Zelenka)

. Added TLS 1.3 early data (0-RTT) support for streams with new context

options early_data, max_early_data and early_data_cb. (Jakub Zelenka)

. Added stream crypto status for exposing OpenSSL WANT_READ / WANT_WRITE.

(Jakub Zelenka)

- PCNTL:

. pcntl_exec() now throws a ValueError if the $args array is not a list

array. (Weilin Du)

- PDO_DBLIB:

. Added dblib_handle_check_liveness handler. (freddy77)

- PDO_PGSQL:

. Clear session-local state disconnect-equivalent processing.

(KentarouTakeda)

- PGSQL:

. Enabled 64 bits support for pg_lo_truncate()/pg_lo_tell() if the server

supports it. (KentarouTakeda)

. pg_fetch_object() now surfaces non-instantiable class errors before

fetching, resolves the constructor via the get_constructor handler, and

reports the empty-constructor ValueError on the $constructor_args argument.

(David Carlier)

- Phar:

. Support reference values in Phar::mungServer(). (ndossche)

. Invalid values now throw in Phar::mungServer() instead of being silently

ignored. (ndossche)

. Fixed a bypass of the magic ".phar" directory protection in

Phar::addEmptyDir() for paths starting with "/.phar". (Weilin Du)

. Fixed an integer underflow when parsing ZIP extra fields. (Weilin Du)

. Phar::addEmptyDir() now allows non-magic directory names that merely

share the ".phar" prefix. (Weilin Du)

. Support overridden methods in SplFileInfo for getMTime() and getPathname()

when building a phar. (ndossche)

. Mark Phar::buildFromIterator() base directory argument as a path.

(ndossche)

- phpdbg:

. Fixed GH-22480 (Use-after-free when re-watching an already-watched

variable). (iliaal)

- Posix:

. Added validity check to the flags argument for posix_access(). (arshidkv12)

- Reflection:

. Fixed bug GH-20217 (ReflectionClass::isIterable() incorrectly returns true

for classes with property hooks). (alexandre-daubois)

. Added ReflectionConstant::inNamespace(). (Khaled Alam)

. Added ReflectionProperty::isReadable() and ::isWritable(). (ilutov)

. Fixed bug GH-21362 (ReflectionMethod::invoke/invokeArgs() did not verify

Closure instance identity for Closure::__invoke()). (Ilia Alshanetsky)

. Added ReflectionParameter::getDocComment(). (chschneider)

- Session:

. Fixed bug 71162 (updateTimestamp never called when session data is empty).

(Girgias)

. Null bytes in session.cookie_path, session.cookie_domain, and

session.cache_limiter are now rejected with a warning. (jorgsowa)

. session.cookie_samesite now rejects invalid values with a warning; only

"Strict", "Lax", "None", or "" are accepted. (jorgsowa)

. session.cookie_lifetime now rejects non-integer and out-of-range values

with a warning. (jorgsowa)

. Session file GC now recursively cleans nested subdirectories when

session.save_path uses the dirdepth prefix. (jorgsowa)

. Changed defaults of session.use_strict_mode (now 1), session.cookie_httponly

(now 1) and session.cookie_samesite (now "Lax"). (jorgsowa)

- Shmop:

. Fixed bug GH-9945 (shmop_open() silently truncates keys outside the key_t

range). (Weilin Du)

- Soap:

. Soap::__setCookie() when cookie name is a digit is now not stored and

represented as a string anymore but a int. (David Carlier)

. Fixed bug GH-21421 (SoapClient typemap property breaks engine assumptions).

(ndossche)

. WSDL/XML Schema parsing now rejects out-of-range integer values for

occurrence constraints and integer restriction facets. Negative minOccurs

and maxOccurs values are rejected as well. (Weilin Du)

- Sockets:

. Added the TCP_USER_TIMEOUT constant for Linux to set the maximum time in

milliseconds transmitted data can remain unacknowledged. (James Lucas)

. Added AF_UNSPEC support for sock_addrinfo_lookup() as a sole umbrella for

AF_INET* family only. (David Carlier)

. Fixed GH-20532 (socket_addrinfo_lookup gives the error code with a new

optional parameter). (David Carlier)

. Added AF_PACKET support completion for socket_sendto()/socket_recvfrom().

(David Carlier)

- Sodium:

. Added support for libsodium 1.0.21 IPcrypt and XOF APIs. (jedisct1)

. pwhash argument-validation errors now throw ValueError instead of

SodiumException. (iliaal)

- SPL:

. DirectoryIterator key can now work better with filesystem supporting larger

directory indexing. (David Carlier)

. Fixed bug GH-21831 (SplObjectStorage::removeAllExcept() use-after-free with

re-entrant getHash()). (Pratik Bhujel)

. Fix bugs GH-8561, GH-8562, GH-8563, and GH-8564 (Fixing various

SplFileObject iterator desync bugs). (iliaal)

. Fix bug GH-22062 (SplDoublyLinkedList iterator UAF via destructor releasing

next node). (David Carlier)

- Sysvshm:

. Fixed shm_attach() to throw ValueError for keys outside the key_t range.

(Weilin Du)

- Sqlite3:

. Fix NUL byte truncation in sqlite3 TEXT column handling. (ndossche)

- Standard:

. Fixed bug GH-19926 (reset internal pointer earlier while splicing array

while COW violation flag is still set). (alexandre-daubois)

. Added form feed (\f) in the default trimmed characters of trim(), rtrim()

and ltrim(). (Weilin Du)

. Invalid mode values now throw in array_filter() instead of being silently

defaulted to 0. (Jorg Sowa)

. Fixed bug GH-21058 (error_log() crashes with message_type 3 and

null destination). (David Carlier)

. Fixed bug GH-13204 (glob() fails if square bracket is in current directory).

(ndossche)

. Add array size maximum to array_diff(). (ndossche)

. Add enum SortDirection. (timwolla)

. pathinfo() raises a ValueError with an invalid $flags argument.

(David Carlier)

. Passing an invalid flag value to the second argument of scandir() will now

throw a ValueError. (alexandre-daubois)

. array_change_key_case() now raises a ValueError when an invalid $case

argument value is passed. (Girgias)

. linkinfo() now raises a ValueError when the argument is an empty string.

(Weilin Du)

. getenv() and putenv() now raises a ValueError when the first argument

contains NUL bytes. (Weilin Du)

. dl() now raises a ValueError when the $extension_filename argument contains

NUL bytes. (Weilin Du)

. openlog() now raises a ValueError when the $prefix argument contains NUL

bytes. (Weilin Du)

. parse_str() now raises a ValueError when the $string argument contains NUL

bytes. (Weilin Du)

. proc_open() now raises a ValueError when the $cwd argument contains NUL

bytes. (Weilin Du)

. ini_get_all() now includes the built-in default value in the details.

(sebastian)

. Fixed bug GH-22171 (Invalid auth header generation in http(s) stream

wrapper). (David Carlier)

. Fixed bug GH-17384 (number_format() may exhaust memory with decimals

outside the range from -2147483648 to 2147483647). (Weilin Du)

- Streams:

. Added new stream errors API including new StreamException, StreamError

classes, StreamErrorStore, StreamErrorMode, StreamErrorCode enums,

stream_last_errors() and stream_clear_errors() functions, error_mode,

error_store and error_handler stream context options and extending some

stream functions with context param. (Jakub Zelenka)

. Added so_keepalive, tcp_keepidle, tcp_keepintvl and tcp_keepcnt stream

socket context options. (Jakub Zelenka)

. Added so_reuseaddr streams context socket option that allows disabling

address resuse. (Jakub Zelenka)

. Added so_linger stream socket context option. (Jakub Zelenka)

. Fixed bug GH-20370 (User stream filters could violate typed property

constraints). (alexandre-daubois)

. Allowed filtered streams to be casted as fd for select. (Jakub Zelenka)

. Fixed bug GH-21221 (Prevent closing of innerstream of php://temp stream).

(ilutov)

. Improved stream_socket_server() bind failure error reporting. (ilutov)

. Fixed bug #49874 (ftell() and fseek() inconsistency when using stream

filters). (Jakub Zelenka)

- URI:

. Added Uri\Rfc3986\Uri::getUriType() and Uri\WhatWg\Url::isSpecialScheme().

(kocsismate)

. Added Uri\Rfc3986\Uri::getHostType() and Uri\WhatWg\Url::getHostType().

(kocsismate)