diff --git a/NEWS b/NEWS
index 4d5f9c87..f45e388c 100644
--- a/NEWS
+++ b/NEWS
@@ -6,6 +6,18 @@ Changes and improvements to testtools_, grouped by release.
 NEXT
 ~~~~
 
+2.9.0
+~~~~~
+
+Improvements
+------------
+* Add ``LessThanOrEqual`` and ``GreaterThanOrEqual`` matchers.
+  (Julian Edwards, #594)
+
+* Improve type annotations throughout the codebase, including compatibility
+  fixes for mypy 1.20.0.
+  (Stephen Finucane, #587, #591, #592, #593, #600)
+
 2.8.7
 ~~~~~
 
diff --git a/pyproject.toml b/pyproject.toml
index 68fb18c6..d4ae34a6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,7 @@ Homepage = "https://github.com/testing-cabal/testtools"
 test = ["testscenarios", "testresources"]
 twisted = ["Twisted", "fixtures"]
 dev = [
-    "ruff==0.15.8",
+    "ruff==0.15.9",
     "mypy>=1.20.0",
     "typing-extensions;python_version<'3.11'",
 ]