diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d5f672..af3b257 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,12 @@
 This document contains details of the various releases and their release dates.
 Dates are in the format `yyyy-mm-dd`.
 
+## 3.3 - 2020-07-27
+
+This release adds `to_s` as an alias for `to_xml`, thanks to Roy Zwambag. See
+merge request https://gitlab.com/yorickpeterse/oga/-/merge_requests/192 for more
+information.
+
 ## 3.2 - 2020-01-10
 
 This release fixes a few warnings that would show up when using Oga on Ruby
diff --git a/checksum/oga-3.3-java.gem.sha512 b/checksum/oga-3.3-java.gem.sha512
new file mode 100644
index 0000000..114542f
--- /dev/null
+++ b/checksum/oga-3.3-java.gem.sha512
@@ -0,0 +1 @@
+c5521d5bc9e025fadfb4e0719c8ff0fa103dd7c184cdf4c60154a1bb5f7d71c9d807a84e76a21b13665de1bbe54f9ba23f6e479650b1bd497302f86ff2af8bbf
\ No newline at end of file
diff --git a/checksum/oga-3.3.gem.sha512 b/checksum/oga-3.3.gem.sha512
new file mode 100644
index 0000000..a2ff977
--- /dev/null
+++ b/checksum/oga-3.3.gem.sha512
@@ -0,0 +1 @@
+be44f4fb2f5f821306556b965a928e42753a57e489516654bdda74662058510cdc9885b50f6170f23762309f3a7c94791d8db71180272961341c917ffc3560e4
\ No newline at end of file
diff --git a/lib/oga/version.rb b/lib/oga/version.rb
index b978da5..25ae8ed 100644
--- a/lib/oga/version.rb
+++ b/lib/oga/version.rb
@@ -1,3 +1,3 @@
 module Oga
-  VERSION = '3.2'
+  VERSION = '3.3'
 end # Oga