diff --git a/.github/scripts/windows/build_task.bat b/.github/scripts/windows/build_task.bat
index ec4ce4459d088..7a2824e299708 100644
--- a/.github/scripts/windows/build_task.bat
+++ b/.github/scripts/windows/build_task.bat
@@ -36,7 +36,6 @@ set CFLAGS=/W1 /WX
 cmd /c configure.bat ^
 	--enable-snapshot-build ^
 	--disable-debug-pack ^
-	--enable-com-dotnet=shared ^
 	--without-analyzer ^
 	--enable-object-out-dir=%PHP_BUILD_OBJ_DIR% ^
 	--with-php-build=%DEPS_DIR% ^
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index 2945fc60c511a..dbddbdc5d89b3 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -7,6 +7,7 @@ permissions:
 
 jobs:
   triage:
+    if: github.repository == 'php/php-src'
     permissions:
       pull-requests: write
     runs-on: ubuntu-latest
diff --git a/NEWS b/NEWS
index bce8cb9ea040b..d2b21046b1c52 100644
--- a/NEWS
+++ b/NEWS
@@ -8,6 +8,7 @@ PHP                                                                        NEWS
 - Core:
   . Fixed bug GH-16665 (\array and \callable should not be usable in
     class_alias). (nielsdos)
+  . Added PHP_BUILD_DATE constant. (cmb)
 
 - Curl:
   . Added curl_multi_get_handles(). (timwolla)
diff --git a/UPGRADING b/UPGRADING
index 0a2eb2867489c..0106d41269b1c 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -129,6 +129,9 @@ PHP 8.5 UPGRADE NOTES
 10. New Global Constants
 ========================================
 
+- Core:
+  . PHP_BUILD_DATE.
+
 - POSIX:
   . POSIX_SC_OPEN_MAX.
 
@@ -147,6 +150,11 @@ PHP 8.5 UPGRADE NOTES
   PHP_RELEASE_VERSION are now always numbers.  Previously, they have been
   strings for buildconf builds.
 
+* COM:
+  . The extension is now build shared by default; previously it defaulted to a
+    static extension, although the official Windows binaries built a shared
+    extension.
+
 * FFI:
   . It is no longer necessary to specify the library when using FFI::cdef()
     and FFI::load(). However, this convenience feature should not be used in
diff --git a/Zend/tests/gh16630.phpt b/Zend/tests/gh16630.phpt
new file mode 100644
index 0000000000000..62d6c9956a7eb
--- /dev/null
+++ b/Zend/tests/gh16630.phpt
@@ -0,0 +1,19 @@
+--TEST--
+GH-16630 (UAF in lexer with encoding translation and heredocs)
+--EXTENSIONS--
+mbstring
+--INI--
+zend.multibyte=On
+zend.script_encoding=ISO-8859-1
+internal_encoding=EUC-JP
+--FILE--
+<?php
+$data3 = <<<CODE
+heredoc
+text
+CODE;
+echo $data3;
+?>
+--EXPECT--
+heredoc
+text
diff --git a/Zend/zend_hash.h b/Zend/zend_hash.h
index 5865c735eec48..d543dae2bab59 100644
--- a/Zend/zend_hash.h
+++ b/Zend/zend_hash.h
@@ -30,12 +30,13 @@
 #define HASH_KEY_IS_LONG 2
 #define HASH_KEY_NON_EXISTENT 3
 
-#define HASH_UPDATE 			(1<<0)
-#define HASH_ADD				(1<<1)
-#define HASH_UPDATE_INDIRECT	(1<<2)
-#define HASH_ADD_NEW			(1<<3)
-#define HASH_ADD_NEXT			(1<<4)
-#define HASH_LOOKUP				(1<<5)
+#define HASH_UPDATE 			(1<<0) /* Create new entry, or update the existing one. */
+#define HASH_ADD				(1<<1) /* Create new entry, or fail if it exists. */
+#define HASH_UPDATE_INDIRECT	(1<<2) /* If the given ht entry is an indirect zval, unwrap it before writing to it. \
+										* When used with HASH_ADD, writing is allowed if the target zval is IS_UNDEF. */
+#define HASH_ADD_NEW			(1<<3) /* Used when the offset is known not to exist. */
+#define HASH_ADD_NEXT			(1<<4) /* Append to an array. (e.g. $array[] = 42;) */
+#define HASH_LOOKUP				(1<<5) /* Look up an existing entry, or create one with a NULL value. */
 
 #define HASH_FLAG_CONSISTENCY      ((1<<0) | (1<<1))
 #define HASH_FLAG_PACKED           (1<<2)
diff --git a/Zend/zend_language_scanner.l b/Zend/zend_language_scanner.l
index 194f5a995fbce..7ae73875926eb 100644
--- a/Zend/zend_language_scanner.l
+++ b/Zend/zend_language_scanner.l
@@ -275,7 +275,7 @@ ZEND_API void zend_restore_lexical_state(zend_lex_state *lex_state)
 	CG(zend_lineno) = lex_state->lineno;
 	zend_restore_compiled_filename(lex_state->filename);
 
-	if (SCNG(script_filtered)) {
+	if (SCNG(script_filtered) && SCNG(script_filtered) != lex_state->script_filtered) {
 		efree(SCNG(script_filtered));
 		SCNG(script_filtered) = NULL;
 	}
diff --git a/ext/com_dotnet/config.w32 b/ext/com_dotnet/config.w32
index cc548ac48c777..ebd55b1b3f066 100644
--- a/ext/com_dotnet/config.w32
+++ b/ext/com_dotnet/config.w32
@@ -1,6 +1,6 @@
 // vim:ft=javascript
 
-ARG_ENABLE("com-dotnet", "COM and .Net support", "yes");
+ARG_ENABLE("com-dotnet", "COM and .Net support", "yes,shared");
 
 if (PHP_COM_DOTNET == "yes") {
 	CHECK_LIB('oleaut32.lib', 'com_dotnet');
diff --git a/ext/opcache/config.w32 b/ext/opcache/config.w32
index 16c137f47a810..fa89ca1f18a39 100644
--- a/ext/opcache/config.w32
+++ b/ext/opcache/config.w32
@@ -1,5 +1,5 @@
 ARG_ENABLE("opcache", "whether to enable Zend OPcache support", "yes");
-ARG_ENABLE("opcache-jit", "whether to enable JIT", "yes");
+ARG_ENABLE("opcache-jit", "whether to enable JIT (not supported for ARM64)", "yes");
 
 
 if (PHP_OPCACHE != "no") {
@@ -22,7 +22,9 @@ if (PHP_OPCACHE != "no") {
 	ADD_EXTENSION_DEP('opcache', 'pcre');
 
 	if (PHP_OPCACHE_JIT == "yes") {
-		if (CHECK_HEADER_ADD_INCLUDE("ir/ir.h", "CFLAGS_OPCACHE", PHP_OPCACHE + ";ext\\opcache\\jit")) {
+		if (TARGET_ARCH == 'arm64') {
+			WARNING("JIT not enabled; not yet supported for ARM64");
+		} else if (CHECK_HEADER_ADD_INCLUDE("ir/ir.h", "CFLAGS_OPCACHE", PHP_OPCACHE + ";ext\\opcache\\jit")) {
 			var dasm_flags = (X64 ? "-D X64=1" : "") + (X64 ? " -D X64WIN=1" : "") + " -D WIN=1";
 			var ir_target = (X64 ? "IR_TARGET_X64" : "IR_TARGET_X86");
 			var ir_src = "ir_strtab.c ir_cfg.c ir_sccp.c ir_gcm.c ir_ra.c ir_save.c \
diff --git a/ext/opcache/jit/zend_jit_ir.c b/ext/opcache/jit/zend_jit_ir.c
index 9124b8400bcea..4767b55cb9547 100644
--- a/ext/opcache/jit/zend_jit_ir.c
+++ b/ext/opcache/jit/zend_jit_ir.c
@@ -1826,6 +1826,9 @@ static void jit_ZVAL_PTR_DTOR(zend_jit_ctx  *jit,
 			ir_END_list(end_inputs);
 			ir_IF_FALSE(if_may_not_leak);
 
+			if (opline) {
+				jit_SET_EX_OPLINE(jit, opline);
+			}
 			ir_CALL_1(IR_VOID, ir_CONST_FC_FUNC(gc_possible_root), ref);
 		}
 
@@ -6518,6 +6521,9 @@ static int zend_jit_assign_to_variable(zend_jit_ctx   *jit,
 			if (RC_MAY_BE_N(var_info) && (var_info & (MAY_BE_ARRAY|MAY_BE_OBJECT)) != 0) {
 				ir_ref if_may_leak = jit_if_GC_MAY_NOT_LEAK(jit, ref);
 				ir_IF_FALSE(if_may_leak);
+				if (opline) {
+					jit_SET_EX_OPLINE(jit, opline);
+				}
 				ir_CALL_1(IR_VOID, ir_CONST_FC_FUNC(gc_possible_root), ref);
 
 				if (Z_MODE(var_addr) == IS_REG || Z_MODE(res_addr) == IS_REG) {
@@ -6545,6 +6551,9 @@ static int zend_jit_assign_to_variable(zend_jit_ctx   *jit,
 			if (var_info & (MAY_BE_ARRAY|MAY_BE_OBJECT)) {
 				ir_ref if_may_leak = jit_if_GC_MAY_NOT_LEAK(jit, ref);
 				ir_IF_FALSE(if_may_leak);
+				if (opline) {
+					jit_SET_EX_OPLINE(jit, opline);
+				}
 				ir_CALL_1(IR_VOID, ir_CONST_FC_FUNC(gc_possible_root), ref);
 				ir_END_list(simple_inputs);
 				ir_IF_TRUE(if_may_leak);
@@ -11410,6 +11419,9 @@ static int zend_jit_bind_global(zend_jit_ctx *jit, const zend_op *opline, uint32
 			ir_IF_TRUE(if_may_not_leak);
 			ir_END_list(end_inputs);
 			ir_IF_FALSE(if_may_not_leak);
+			if (opline) {
+				jit_SET_EX_OPLINE(jit, opline);
+			}
 			ir_CALL_1(IR_VOID, ir_CONST_FC_FUNC(gc_possible_root), ref2);
 		}
 		if (op1_info & ((MAY_BE_ANY|MAY_BE_UNDEF) - (MAY_BE_OBJECT|MAY_BE_RESOURCE))) {
diff --git a/ext/standard/info.c b/ext/standard/info.c
index 8a706ef62eb57..aa03be761c052 100644
--- a/ext/standard/info.c
+++ b/ext/standard/info.c
@@ -801,7 +801,7 @@ PHPAPI ZEND_COLD void php_print_info(int flag)
 		php_info_print_box_end();
 		php_info_print_table_start();
 		php_info_print_table_row(2, "System", ZSTR_VAL(php_uname));
-		php_info_print_table_row(2, "Build Date", __DATE__ " " __TIME__);
+		php_info_print_table_row(2, "Build Date", php_build_date);
 #ifdef PHP_BUILD_SYSTEM
 		php_info_print_table_row(2, "Build System", PHP_BUILD_SYSTEM);
 #endif
diff --git a/main/main.c b/main/main.c
index 0b38f303c58fc..0f422fd3978f1 100644
--- a/main/main.c
+++ b/main/main.c
@@ -97,6 +97,8 @@ PHPAPI size_t core_globals_offset;
 
 #define SAFE_FILENAME(f) ((f)?(f):"-")
 
+const char php_build_date[] = __DATE__ " " __TIME__;
+
 PHPAPI const char *php_version(void)
 {
 	return PHP_VERSION;
@@ -110,8 +112,8 @@ PHPAPI unsigned int php_version_id(void)
 PHPAPI char *php_get_version(sapi_module_struct *sapi_module)
 {
 	char *version_info;
-	spprintf(&version_info, 0, "PHP %s (%s) (built: %s %s) (%s)\nCopyright (c) The PHP Group\n%s%s",
-		PHP_VERSION, sapi_module->name, __DATE__, __TIME__,
+	spprintf(&version_info, 0, "PHP %s (%s) (built: %s) (%s)\nCopyright (c) The PHP Group\n%s%s",
+		PHP_VERSION, sapi_module->name, php_build_date,
 #ifdef ZTS
 		"ZTS"
 #else
diff --git a/main/main.stub.php b/main/main.stub.php
index b5f848dacc82b..3359d4a1cd0bf 100644
--- a/main/main.stub.php
+++ b/main/main.stub.php
@@ -34,6 +34,13 @@
  * @cvalue PHP_VERSION_ID
  */
 const PHP_VERSION_ID = UNKNOWN;
+
+/**
+ * @var string
+ * @cvalue php_build_date
+ */
+const PHP_BUILD_DATE = UNKNOWN;
+
 /**
  * @var bool
  * @cvalue PHP_ZTS
diff --git a/main/main_arginfo.h b/main/main_arginfo.h
index 28a7d15f89661..f0d2599baf473 100644
--- a/main/main_arginfo.h
+++ b/main/main_arginfo.h
@@ -1,5 +1,5 @@
 /* This is a generated file, edit the .stub.php file instead.
- * Stub hash: 793b455a47a0422cee767ef2f6a448a369520542 */
+ * Stub hash: cb5c9a3e48b18a773264378099267550ca9e4fc1 */
 
 static void register_main_symbols(int module_number)
 {
@@ -9,6 +9,7 @@ static void register_main_symbols(int module_number)
 	REGISTER_LONG_CONSTANT("PHP_RELEASE_VERSION", PHP_RELEASE_VERSION, CONST_PERSISTENT);
 	REGISTER_STRING_CONSTANT("PHP_EXTRA_VERSION", PHP_EXTRA_VERSION, CONST_PERSISTENT);
 	REGISTER_LONG_CONSTANT("PHP_VERSION_ID", PHP_VERSION_ID, CONST_PERSISTENT);
+	REGISTER_STRING_CONSTANT("PHP_BUILD_DATE", php_build_date, CONST_PERSISTENT);
 	REGISTER_BOOL_CONSTANT("PHP_ZTS", PHP_ZTS, CONST_PERSISTENT);
 	REGISTER_BOOL_CONSTANT("PHP_DEBUG", PHP_DEBUG, CONST_PERSISTENT);
 	REGISTER_STRING_CONSTANT("PHP_OS", PHP_OS_STR, CONST_PERSISTENT);
diff --git a/main/php.h b/main/php.h
index a7ff4b6e35bea..5c0b89c328375 100644
--- a/main/php.h
+++ b/main/php.h
@@ -265,6 +265,8 @@ END_EXTERN_C()
 extern char **environ;
 #endif	/* ifndef PHP_WIN32 */
 
+extern const char php_build_date[];
+
 #ifdef PHP_PWRITE_64
 ssize_t pwrite(int, void *, size_t, off64_t);
 #endif
diff --git a/tests/basic/build_date.phpt b/tests/basic/build_date.phpt
new file mode 100644
index 0000000000000..44f09bab59aea
--- /dev/null
+++ b/tests/basic/build_date.phpt
@@ -0,0 +1,8 @@
+--TEST--
+PHP_BUILD_DATE
+--FILE--
+<?php
+var_dump(PHP_BUILD_DATE);
+?>
+--EXPECTREGEX--
+string\(20\) "[A-Za-z]{3} \d{2} \d{4} \d{2}:\d{2}:\d{2}"