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PHP 8.5 Thursday, 12 March 2026

PHP 8.5.4

20 changes across 9 components.

Core

  • Fixed bug GH-21029 (zend_mm_heap corrupted on Aarch64, LTO builds).
  • Fixed bug GH-21059 (Segfault when preloading constant AST closure).
  • Fixed bug GH-21072 (Crash on (unset) cast in constant expression).
  • Fix deprecation now showing when accessing null key of an array with JIT.
  • Fixed bug GH-20657 (Assertion failure in zend_lazy_object_get_info triggered by setRawValueWithoutLazyInitialization() and newLazyGhost()).
  • Fixed bug GH-20504 (Assertion failure in zend_get_property_guard when accessing properties on Reflection LazyProxy via isset()).
  • Fixed OSS-Fuzz #478009707 (Borked assign-op/inc/dec on untyped hooked property backing value).
  • Fixed bug GH-21215 (Build fails with -std=).
  • Fixed bug GH-13674 (Build system installs libtool wrappers when using slibtool).

Curl

  • Don't truncate length.

Date

  • Fixed bug GH-20936 (DatePeriod::__set_state() cannot handle null start).
  • Fix timezone offset with seconds losing precision.

DOM

  • Fixed bug GH-21077 (Accessing Dom\Node::baseURI can throw TypeError).
  • Fixed bug GH-21097 (Accessing Dom\Node properties can can throw TypeError).

LDAP

  • Fixed bug GH-21262 (ldap_modify() too strict controls argument validation makes it impossible to unset attribute).

MBString

  • Fixed bug GH-21223; mb_guess_encoding no longer crashes when passed huge list of candidate encodings (with 200,000+ entries).

Opcache

  • Fixed bug GH-20718 ("Insufficient shared memory" when using JIT on Solaris).
  • Fixed bug GH-21227 (Borked SCCP of array containing partial object).

OpenSSL

  • Fix a bunch of leaks and error propagation.

Windows

  • Fixed compilation with clang (missing intrin.h include).
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