From 547d98b81d674c48f04eab5c24aa065eba4838cc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Schr=C3=B6der?= <m.schroeder2007@gmail.com>
Date: Sun, 12 Jul 2020 20:56:47 +0200
Subject: Support socketpairs in proc_open()

Closes GH-5777.
---
 UPGRADING | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'UPGRADING')

diff --git a/UPGRADING b/UPGRADING
index 704bd2924a..cb4021b8a5 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -631,6 +631,14 @@ PHP 8.0 UPGRADE NOTES
 
         $proc = proc_open($command, [['pty'], ['pty'], ['pty']], $pipes);
 
+  . proc_open() now supports socket pair descriptors. The following attaches
+    a distinct socket pair to stdin, stdout and stderr:
+
+        $proc = proc_open(
+            $command, [['socket'], ['socket'], ['socket']], $pipes);
+
+    Unlike pipes, sockets do not suffer from blocking I/O issues on Windows.
+    However, not all programs may work correctly with stdio sockets.
   . Sorting functions are now stable, which means that equal-comparing elements
     will retain their original order.
     RFC: https://wiki.php.net/rfc/stable_sorting
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