From: Christoph M. Becker <cmbecker69@gmx.de>
Date: Fri, 6 Jan 2017 10:24:44 +0000 (+0100)
Subject: Update UPGRADING wrt. PR 1303
X-Git-Tag: php-7.2.0alpha1~616
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c832ab4de68485df67d09ebb8d2bf55b658c5e30;p=php

Update UPGRADING wrt. PR 1303
---

diff --git a/UPGRADING b/UPGRADING
index f6d858b5df..b3c1d19aa0 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -37,6 +37,11 @@ PHP 7.2 UPGRADE NOTES
     property names would become inaccessible string keys.
   . Minimum supported Windows versions are Windows 7/Server 2008 R2.
 
+- PCRE:
+  . preg_match() and other PCRE functions now distinguish between unmatched
+    subpatterns and empty matches by reporting NULL and "" (empty string),
+    respectively. Formerly, either was reported as empty string.
+
 - Session:
   . Removed register_globals related code and "!" can be used as $_SESSION key name.
   . Session is made to manage session status corretly and prevents invalid operations.