From 813f8e333dabb2050d6b668b7bdd68b4979e8af4 Mon Sep 17 00:00:00 2001
From: Paul Kuruvilla <rohitpaulk@gmail.com>
Date: Mon, 23 Oct 2017 15:17:31 +0530
Subject: Fix #to_json for unreadable IO objects, fixes #26132

---
 activesupport/CHANGELOG.md | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'activesupport/CHANGELOG.md')

diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md
index 7696fdcd7a..4e713da8a8 100644
--- a/activesupport/CHANGELOG.md
+++ b/activesupport/CHANGELOG.md
@@ -1,3 +1,11 @@
+*   `IO#to_json` now returns the `to_s` representation, rather than
+    attempting to convert to an array. This fixes a bug where `IO#to_json`
+    would raise an `IOError` when called on an unreadable object.
+
+    Fixes #26132.
+
+    *Paul Kuruvilla*
+
 *   `Hash#slice` now falls back to Ruby 2.5+'s built-in definition if defined.
 
     *Akira Matsuda*
-- 
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