diff --git a/_metadata.py b/_metadata.py
index 323ac76..567207f 100644
--- a/_metadata.py
+++ b/_metadata.py
@@ -1,2 +1,2 @@
-__extension_version__ = "0.7.0"
+__extension_version__ = "0.8.0"
 __extension_name__ = "pytket-iqm"
diff --git a/docs/changelog.rst b/docs/changelog.rst
index df68019..d3e9177 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -1,11 +1,12 @@
 Changelog
 ~~~~~~~~~
 
-Unreleased
-----------
+0.8.0 (October 2023)
+--------------------
 
 * Don't include ``SimplifyInitial`` in default passes; instead make it an option
   to ``process_circuits()``.
+* Updated pytket version requirement to 1.21.
 
 0.7.0 (October 2023)
 --------------------