diff --git a/Cargo.toml b/Cargo.toml
index 7a185bd..057da3d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "rpds"
 description = "Persistent data structures with structural sharing"
-version = "1.0.2-pre"
+version = "1.1.0"
 authors = ["Diogo Sousa <diogogsousa@gmail.com>"]
 
 edition = "2021"
diff --git a/release-notes.md b/release-notes.md
index f83802a..3fcb12d 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -1,5 +1,10 @@
 # Release notes
 
+## 1.1.0
+
+* Use [triomphe](https://crates.io/crates/triomphe) reference-counting pointer by default in `Sync` data structures,
+  which improves their performance.
+
 ## 1.0.1
 
 * Fix the tests of `SparseArrayUsize` on 32-bit computers.  This issue did not affect production code which did work