diff --git a/NEWS b/NEWS
index f39dd0954a50..a7ad6778875b 100644
--- a/NEWS
+++ b/NEWS
@@ -154,6 +154,8 @@ PHP                                                                        NEWS
     (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)
 
 - Streams:
   . Added so_keepalive, tcp_keepidle, tcp_keepintvl and tcp_keepcnt stream
diff --git a/UPGRADING b/UPGRADING
index 33717ac1ed57..e64b65e7b0b8 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -19,14 +19,29 @@ PHP 8.6 UPGRADE NOTES
 1. Backward Incompatible Changes
 ========================================
 
+- GD:
+  . imagesetstyle(), imagefilter() and imagecrop() filter their
+    array arguments types/values and raise a TypeError/ValueError
+    accordingly.
+
+- PCNTL:
+  . pcntl_alarm() now raises a ValueError if the seconds argument is
+    lower than zero or greater than platform's UINT_MAX.
+
 - PCRE:
   . preg_grep() now returns false instead of a partial array when a PCRE
     execution error occurs (e.g. malformed UTF-8 input with the /u modifier).
     This is consistent with other preg_* functions.
 
 - Phar:
-  . Invalid values now throw in Phar::mungServer() instead of being silently
-    ignored.
+  . Phar::mungServer() now raises a ValueError when an invalid
+    argument value is passed instead of being silently ignored.
+
+- Posix:
+  . posix_access() now raises a ValueError when an invalid $flags
+    argument value is passed.
+  . posix_mkfifo() now raises a ValueError when an invalid $permissions
+    argument value is passed.
 
 - Session:
   . A ValueError is not thrown if $name is a string containing null bytes in
@@ -45,10 +60,21 @@ PHP 8.6 UPGRADE NOTES
     logic in their updateTimestamp() method.
 
 - Standard:
-  . Invalid mode values now throw in array_filter() instead of being silently
-    defaulted to 0.
   . Form feed (\f) is now added in the default trimmed characters of trim(),
     rtrim() and ltrim(). RFC: https://wiki.php.net/rfc/trim_form_feed
+  . array_filter() now raises a ValueError when an invalid $mode
+    argument value is passed.
+  . array_change_key_case() now raises a ValueError when an invalid $case
+    argument value is passed.
+  . pathinfo() now raises a ValueError when an invalid $flag
+    argument value is passed.
+  . scandir() now raises a ValueError when an invalid $sorting_order
+    argument value is passed.
+
+- Zip:
+  . ZipArchive::extractTo now raises a TypeError for the
+    files argument if one or more of the entries is not
+    a string.
 
 ========================================
 2. New Features
@@ -103,11 +129,6 @@ PHP 8.6 UPGRADE NOTES
 5. Changed Functions
 ========================================
 
-- GD:
-  . imagesetstyle(), imagefilter() and imagecrop() filter their
-    array arguments types/values and raise a TypeError/ValueError
-    accordingly.    
-
 - mysqli:
   . The return structure of mysqli_get_charset() no longer contains
     the undocumented "comment" element. The value of "charsetnr" is
@@ -118,35 +139,14 @@ PHP 8.6 UPGRADE NOTES
   . Output of openssl_x509_parse() contains criticalExtensions listing all
     critical certificate extensions.
 
-- PCNTL:
-  . pcntl_alarm() now throws a ValueError if the seconds argument is
-    lower than zero or greater than platform's UINT_MAX.
-
 - Phar:
   . Phar::mungServer() now supports reference values.
 
-- Posix:
-  . posix_access() now throws a ValueError exception if the flags
-    argument is invalid.
-  . posix_mkfifo() now throws a ValueError exception if the permissions
-    argument is invalid.
-
 - Sockets:
   . socket_addrinfo_lookup() now has an additional optional argument $error
     when not null, and on failure, gives the error code (one of the EAI_*
     constants).
 
-- Standard:
-  . pathinfo() now raises a ValueError when an invalid $flag argument
-    value is passed.
-  . scandir() now raises a ValueError when an invalid $sorting_order
-    argument value is passed.
-
-- Zip:
-  . ZipArchive::extractTo now raises a TypeError for the
-    files argument if one or more of the entries is not
-    a string.
-
 ========================================
 6. New Functions
 ========================================
@@ -222,12 +222,19 @@ PHP 8.6 UPGRADE NOTES
   . EAI_IDN_ENCODE.
 
 - Standard
-  . ARRAY_FILTER_USE_KEY.
+  . ARRAY_FILTER_USE_VALUE.
 
 ========================================
 11. Changes to INI File Handling
 ========================================
 
+- Mbstring:
+  . The mbstring.detect_order INI directive now updates the internal detection
+    order when changed at runtime via ini_set(). Previously, runtime changes
+    using ini_set() did not take effect for mb_detect_order(). Setting the
+    directive to NULL or an empty string at runtime now leaves the previously
+    configured detection order unchanged.
+
 - Mysqli:
   . mysqli.default_port now checks the validity of the value which should be
     between 0 and 65535 included.
@@ -237,13 +244,6 @@ PHP 8.6 UPGRADE NOTES
     When used along with ZEND_JIT_DEBUG_TRACE_EXIT_INFO, the source of exit
     points is printed in exit info output, in debug builds.
 
-- Mbstring:
-  . The mbstring.detect_order INI directive now updates the internal detection
-    order when changed at runtime via ini_set(). Previously, runtime changes
-    using ini_set() did not take effect for mb_detect_order(). Setting the
-    directive to NULL or an empty string at runtime now leaves the previously
-    configured detection order unchanged.
-
 ========================================
 12. Windows Support
 ========================================
diff --git a/ext/sqlite3/sqlite3.c b/ext/sqlite3/sqlite3.c
index 27d8cd17fbd5..4591d6d83d56 100644
--- a/ext/sqlite3/sqlite3.c
+++ b/ext/sqlite3/sqlite3.c
@@ -38,7 +38,7 @@ ZEND_DECLARE_MODULE_GLOBALS(sqlite3)
 static PHP_GINIT_FUNCTION(sqlite3);
 static int php_sqlite3_authorizer(void *autharg, int action, const char *arg1, const char *arg2, const char *arg3, const char *arg4);
 static void sqlite3_param_dtor(zval *data);
-static int php_sqlite3_compare_stmt_free(php_sqlite3_stmt **stmt_obj_ptr, sqlite3_stmt *statement);
+static int php_sqlite3_compare_stmt_free(php_sqlite3_stmt **stmt_obj_ptr, php_sqlite3_stmt *statement);
 static zend_always_inline void php_sqlite3_fetch_one(int n_cols, php_sqlite3_result *result_obj, zend_long mode, zval *result);
 
 #define SQLITE3_CHECK_INITIALIZED(db_obj, member, class_name) \
@@ -2120,7 +2120,7 @@ PHP_METHOD(SQLite3Result, finalize)
 
 	/* We need to finalize an internal statement */
 	if (!result_obj->is_prepared_statement) {
-		zend_llist_del_element(&(result_obj->db_obj->free_list), &result_obj->stmt_obj,
+		zend_llist_del_element(&(result_obj->db_obj->free_list), result_obj->stmt_obj,
 			(int (*)(void *, void *)) php_sqlite3_compare_stmt_free);
 	} else {
 		sqlite3_reset(result_obj->stmt_obj->stmt);
@@ -2235,9 +2235,9 @@ static void php_sqlite3_free_list_dtor(void **item)
 }
 /* }}} */
 
-static int php_sqlite3_compare_stmt_free(php_sqlite3_stmt **stmt_obj_ptr, sqlite3_stmt *statement ) /* {{{ */
+static int php_sqlite3_compare_stmt_free(php_sqlite3_stmt **stmt_obj_ptr, php_sqlite3_stmt *statement ) /* {{{ */
 {
-	return ((*stmt_obj_ptr)->initialised && statement == (*stmt_obj_ptr)->stmt);
+	return ((*stmt_obj_ptr)->initialised && statement == *stmt_obj_ptr);
 }
 /* }}} */
 
@@ -2351,7 +2351,7 @@ static void php_sqlite3_stmt_object_free_storage(zend_object *object) /* {{{ */
 	}
 
 	if (intern->initialised) {
-		zend_llist_del_element(&(intern->db_obj->free_list), intern->stmt,
+		zend_llist_del_element(&(intern->db_obj->free_list), intern,
 			(int (*)(void *, void *)) php_sqlite3_compare_stmt_free);
 	}
 
diff --git a/ext/standard/basic_functions.stub.php b/ext/standard/basic_functions.stub.php
index 1f3d5617f8df..c437f0d7f6c2 100644
--- a/ext/standard/basic_functions.stub.php
+++ b/ext/standard/basic_functions.stub.php
@@ -1879,7 +1879,7 @@ function array_product(array $array): int|float {}
 
 function array_reduce(array $array, callable $callback, mixed $initial = null): mixed {}
 
-function array_filter(array $array, ?callable $callback = null, int $mode = ARRAY_FILTER_USE_KEY): array {}
+function array_filter(array $array, ?callable $callback = null, int $mode = ARRAY_FILTER_USE_VALUE): array {}
 
 function array_find(array $array, callable $callback): mixed {}
 
diff --git a/ext/standard/basic_functions_arginfo.h b/ext/standard/basic_functions_arginfo.h
index 991d76d91fc1..1ba20c6b26cc 100644
--- a/ext/standard/basic_functions_arginfo.h
+++ b/ext/standard/basic_functions_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit basic_functions.stub.php instead.
- * Stub hash: 749c71a6220260eb3fb593b982a9d97821e0539b
+ * Stub hash: a846d7e3dd1f1cebd8c6257132c97b3758067127
  * Has decl header: yes */
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_set_time_limit, 0, 1, _IS_BOOL, 0)
@@ -346,7 +346,7 @@ ZEND_END_ARG_INFO()
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_array_filter, 0, 1, IS_ARRAY, 0)
 	ZEND_ARG_TYPE_INFO(0, array, IS_ARRAY, 0)
 	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, callback, IS_CALLABLE, 1, "null")
-	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, mode, IS_LONG, 0, "ARRAY_FILTER_USE_KEY")
+	ZEND_ARG_TYPE_INFO_WITH_DEFAULT_VALUE(0, mode, IS_LONG, 0, "ARRAY_FILTER_USE_VALUE")
 ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_array_find, 0, 2, IS_MIXED, 0)
diff --git a/ext/standard/basic_functions_decl.h b/ext/standard/basic_functions_decl.h
index fce41100fc79..ab27bb64f0c7 100644
--- a/ext/standard/basic_functions_decl.h
+++ b/ext/standard/basic_functions_decl.h
@@ -1,8 +1,8 @@
 /* This is a generated file, edit basic_functions.stub.php instead.
- * Stub hash: 749c71a6220260eb3fb593b982a9d97821e0539b */
+ * Stub hash: a846d7e3dd1f1cebd8c6257132c97b3758067127 */
 
-#ifndef ZEND_BASIC_FUNCTIONS_DECL_749c71a6220260eb3fb593b982a9d97821e0539b_H
-#define ZEND_BASIC_FUNCTIONS_DECL_749c71a6220260eb3fb593b982a9d97821e0539b_H
+#ifndef ZEND_BASIC_FUNCTIONS_DECL_a846d7e3dd1f1cebd8c6257132c97b3758067127_H
+#define ZEND_BASIC_FUNCTIONS_DECL_a846d7e3dd1f1cebd8c6257132c97b3758067127_H
 
 typedef enum zend_enum_SortDirection {
 	ZEND_ENUM_SortDirection_Ascending = 1,
@@ -20,4 +20,4 @@ typedef enum zend_enum_RoundingMode {
 	ZEND_ENUM_RoundingMode_PositiveInfinity = 8,
 } zend_enum_RoundingMode;
 
-#endif /* ZEND_BASIC_FUNCTIONS_DECL_749c71a6220260eb3fb593b982a9d97821e0539b_H */
+#endif /* ZEND_BASIC_FUNCTIONS_DECL_a846d7e3dd1f1cebd8c6257132c97b3758067127_H */