PHP version 8.3.26 (25 Sep 2025)

Core:

• Fixed bug GH-18850 (Repeated inclusion of file with __halt_compiler() triggers "Constant already defined" warning). (ilutov)
• Partially fixed bug GH-19542 (Scanning of string literals >=2GB will fail due to signed int overflow). (ilutov)
• Fixed bug GH-19544 (GC treats ZEND_WEAKREF_TAG_MAP references as WeakMap references). (Arnaud, timwolla)
• Fixed bug GH-19613 (Stale array iterator pointer). (ilutov)
• Fixed bug GH-19679 (zend_ssa_range_widening may fail to converge). (Arnaud)
• Fixed bug GH-19681 (PHP_EXPAND_PATH broken with bash 5.3.0). (Remi)
• Fixed bug GH-19720 (Assertion failure when error handler throws when accessing a deprecated constant). (nielsdos)

CLI:

• Fixed bug GH-19461 (Improve error message on listening error with IPv6 address). (alexandre-daubois)

Date:

• Fixed date_sunrise() and date_sunset() with partial-hour UTC offset. (ilutov)

DOM:

• Fixed bug GH-19612 (Mitigate libxml2 tree dictionary bug). (nielsdos)

FPM:

• Fixed failed debug assertion when php_admin_value setting fails. (ilutov)

GD:

• Fixed bug GH-19579 (imagefilledellipse underflow on width argument). (David Carlier)

Intl:

• Fixed bug GH-11952 (Fix locale strings canonicalization for IntlDateFormatter and NumberFormatter). (alexandre-daubois)

OpenSSL:

• Fixed bug GH-19245 (Success error message on TLS stream accept failure). (Jakub Zelenka)

PGSQL:

• Fixed bug GH-19485 (potential use after free when using persistent pgsql connections). (Mark Karpeles)

Phar:

• Fixed memory leaks when verifying OpenSSL signature. (Girgias)
• Fix memory leak in phar tar temporary file error handling code. (nielsdos)
• Fix metadata leak when phar convert logic fails. (nielsdos)
• Fix memory leak on failure in phar_convert_to_other(). (nielsdos)
• Fixed bug GH-19752 (Phar decompression with invalid extension can cause UAF). (nielsdos)

Standard:

• Fixed bug GH-16649 (UAF during array_splice). (alexandre-daubois)
• Fixed bug GH-19577 (Avoid integer overflow when using a small offset and PHP_INT_MAX with LimitIterator). (alexandre-daubois)

Streams:

• Remove incorrect call to zval_ptr_dtor() in user_wrapper_metadata(). (nielsdos)
• Fix OSS-Fuzz #385993744. (nielsdos)

Tidy:

• Fixed GH-19021 build issue with libtidy in regard of tidyOptIsReadonly deprecation and TidyInternalCategory being available later than tidyOptGetCategory. (arjendekorte)