diff --git a/CHANGELOG.md b/CHANGELOG.md
index 442f52c7..c5cc3e6e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## v1.1.0
+
+* `mean()`, `variance()`, etc. now return an exact `fractions.Fraction` when possible. (Note that `Fraction`s only support float-style formatting from 3.12.)
+* Rename `disjoint_union` to `additive_union`.
+* Add `keep_negative_counts` keyword argument to `+, -, &, |` binary operators for multiset expressions (default `False`).
+* Symmetric difference (`^`) for multiset expressions is now a straight absolute difference of counts.
+* Add unary `+` operator for multiset expressions, which is the same as `keep_counts(0)`.
+
 ## v1.0.0
 
 Improve some error messages.
diff --git a/src/icepool/__init__.py b/src/icepool/__init__.py
index 4eea5502..17164203 100644
--- a/src/icepool/__init__.py
+++ b/src/icepool/__init__.py
@@ -19,7 +19,7 @@
 
 __docformat__ = 'google'
 
-__version__ = '1.0.0'
+__version__ = '1.1.0'
 
 from typing import Final