From ab51e3fd9ee8041f011341ba48e29b2f1bb596c9 Mon Sep 17 00:00:00 2001
From: Robbert Krebbers <mail@robbertkrebbers.nl>
Date: Mon, 17 Feb 2020 16:39:21 +0100
Subject: [PATCH] CHANGELOG entry.

---
 CHANGELOG.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd50794e..571ee447 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ API-breaking change is listed.
   example, change `(!! i)` into `(.!! x)` so that `!!` can also be used as a
   prefix, as done in VST. A sed script to perform the renaming can be found at:
   https://gitlab.mpi-sws.org/iris/stdpp/merge_requests/93
+- Add type class `TopSet` for sets with a `⊤` element. Provide instances for
+  `boolset`, `propset`, and `coPset`.
 
 ## std++ 1.2.1 (released 2019-08-29)
 
-- 
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