From 20d244d32682b61f0f099ebd2a6580f0d71bd4aa Mon Sep 17 00:00:00 2001
From: Tyler Mandry <tmandry@gmail.com>
Date: Wed, 24 Oct 2018 21:24:53 -0500
Subject: [PATCH] Add status of regions

---
 src/traits/regions.md | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/traits/regions.md b/src/traits/regions.md
index baa3582b..4657529d 100644
--- a/src/traits/regions.md
+++ b/src/traits/regions.md
@@ -1,3 +1,9 @@
 # Region constraints
 
-*to be written*
+*To be written.*
+
+Chalk does not have the concept of region constraints, and as of this
+writing, work on rustc was not far enough to worry about them.
+
+In the meantime, you can read about region constraints in the
+[type inference](../type-inference.html#region-constraints) section.