[skip ci] Add NEWS/UPGRADING + wording amendment for GH-13483

NEWS

@@ -4,6 +4,12 @@ PHP                                                                        NEWS
 
 - Core:
   . Exiting a namespace now clears seen symbols. (ilutov)
+  . The exit (and die) language constructs now behave more like a function.
+    They can be passed liked callables, are affected by the strict_types
+    declare statement, and now perform the usual type coercions instead of
+    casting any non-integer value to a string.
+    As such, passing invalid types to exit/die may now result in a TypeError
+    being thrown. (Girgias)
 
 15 Aug 2024, PHP 8.4.0beta1
 

UPGRADING

@@ -37,6 +37,13 @@ PHP 8.4 UPGRADE NOTES
     allowed, e.g. $ref = &$this->readonly. This was already forbidden for
     readonly initialization, and was an oversight in the "readonly
     reinitialization during cloning" implementation.
+  . The exit (and die) language constructs now behave more like a function.
+    They can be passed liked callables, are affected by the strict_types
+    declare statement, and now perform the usual type coercions instead of
+    casting any non-integer value to a string.
+    As such, passing invalid types to exit/die may now result in a TypeError
+    being thrown.
+    RFC: https://wiki.php.net/rfc/exit-as-function
 
 - DBA:
   . dba_open() and dba_popen() will now return a Dba\Connection

build/gen_stub.php

@@ -83,7 +83,7 @@ function processStubFile(string $stubFile, Context $context, bool $includeOnly =
             }
         }
 
-        /* As exit() and die() are proper token/keywords an need to hack-around */
+        /* Because exit() and die() are proper token/keywords we need to hack-around */
         $hasSpecialExitAsFunctionHandling = str_ends_with($stubFile, 'zend_builtin_functions.stub.php');
         if (!$fileInfo = $context->parsedFiles[$stubFile] ?? null) {
             initPhpParser();