From 257fae1559539a1f1e40b1500bc8522c9e65c5d1 Mon Sep 17 00:00:00 2001
From: Jon Rowe <hello@jonrowe.co.uk>
Date: Mon, 29 Jun 2020 22:02:42 +0100
Subject: [PATCH] Changelog for #2743

---
 Changelog.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Changelog.md b/Changelog.md
index 4280ab2d0c..34d51def37 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,6 +1,11 @@
 ### Development
 [Full Changelog](http://github.com/rspec/rspec-core/compare/v3.9.2...master)
 
+Enhancements:
+
+* Memoize `RSpec::Core::Formatters::ExceptionPresenter#exception_lines` to improve performance
+  with slow exception messages. (Maxime Lapointe, #2743)
+
 Bug Fixes:
 
 * Declare `ruby2_keywords` on `method_missing` for other gems. (Jon Rowe, #2731)