diff --git a/CHANGELOG.md b/CHANGELOG.md
index ada10f9..c671683 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to Milo are documented here.
 
+## 0.2.1 — 2026-04-10
+
+### Fixed
+
+- Fixed group bare invocation showing "Unknown command" instead of group help, and help output now lists subcommands by name instead of raw argparse internals.
+
 ## 0.2.0 — 2026-04-10
 
 ### Added
diff --git a/changelog.d/+group-help-fix.fixed.md b/changelog.d/+group-help-fix.fixed.md
deleted file mode 100644
index ddc90e4..0000000
--- a/changelog.d/+group-help-fix.fixed.md
+++ /dev/null
@@ -1 +0,0 @@
-Fixed group bare invocation showing "Unknown command" instead of group help, and help output now lists subcommands by name instead of raw argparse internals.
diff --git a/changelog.d/+release-0.2.1.changed.md b/changelog.d/+release-0.2.1.changed.md
new file mode 100644
index 0000000..81c292a
--- /dev/null
+++ b/changelog.d/+release-0.2.1.changed.md
@@ -0,0 +1 @@
+Towncrier `title_format` updated to match established changelog heading style (`## version — date`).
diff --git a/pyproject.toml b/pyproject.toml
index 4e5b8d6..6c26f1e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "milo-cli"
-version = "0.2.0"
+version = "0.2.1"
 description = "Template-driven CLI applications for free-threaded Python"
 readme = "README.md"
 requires-python = ">=3.14"
@@ -136,7 +136,7 @@ directory = "changelog.d"
 filename = "CHANGELOG.md"
 package = "milo"
 package_dir = "src"
-title_format = "## [{version}] - {project_date}"
+title_format = "## {version} — {project_date}"
 issue_format = "[#{issue}](https://github.com/lbliii/milo-cli/issues/{issue})"
 underlines = ["", "", ""]
 
diff --git a/site/content/releases/0.2.1.md b/site/content/releases/0.2.1.md
new file mode 100644
index 0000000..ce8899b
--- /dev/null
+++ b/site/content/releases/0.2.1.md
@@ -0,0 +1,17 @@
+---
+title: Milo 0.2.1
+description: Fix group help display and subcommand listing.
+type: changelog
+date: 2026-04-10
+draft: false
+lang: en
+tags: [release, changelog]
+keywords: [release, 0.2.1]
+category: changelog
+---
+
+Patch release fixing group command help display.
+
+## Fixed
+
+- **Group help display** — Bare invocation of a command group now correctly shows group help instead of "Unknown command". Help output lists subcommands by name instead of raw argparse internals.
diff --git a/src/milo/__init__.py b/src/milo/__init__.py
index 56765bd..af5233e 100644
--- a/src/milo/__init__.py
+++ b/src/milo/__init__.py
@@ -154,7 +154,7 @@ def _Py_mod_gil() -> int:  # noqa: N802
     return 0
 
 
-__version__ = "0.2.0"
+__version__ = "0.2.1"
 __all__ = [
     "BUILTIN_ACTIONS",
     "CLI",
diff --git a/tests/test_effects.py b/tests/test_effects.py
index bdd404a..8c2cfb7 100644
--- a/tests/test_effects.py
+++ b/tests/test_effects.py
@@ -992,14 +992,14 @@ def inner_saga():
             yield Put(Action("DEBOUNCED_FIRE"))
 
         def parent():
-            # First debounce — 0.15s
-            yield Debounce(seconds=0.15, saga=inner_saga)
+            # First debounce — 0.2s
+            yield Debounce(seconds=0.2, saga=inner_saga)
             # Wait a bit, then retrigger before first fires
             yield Delay(seconds=0.05)
             # Second debounce — resets the timer
-            yield Debounce(seconds=0.15, saga=inner_saga)
+            yield Debounce(seconds=0.2, saga=inner_saga)
             # Wait long enough for second to fire
-            yield Delay(seconds=0.3)
+            yield Delay(seconds=0.5)
 
         def reducer(state, action):
             actions.append(action.type)
@@ -1007,7 +1007,7 @@ def reducer(state, action):
 
         store = Store(reducer, None)
         store.run_saga(parent())
-        time.sleep(0.6)
+        time.sleep(1.0)
         store._executor.shutdown(wait=True)
 
         # Should fire exactly once (first timer cancelled, second fires)
diff --git a/uv.lock b/uv.lock
index 205f744..a2ef2cd 100644
--- a/uv.lock
+++ b/uv.lock
@@ -478,7 +478,7 @@ wheels = [
 
 [[package]]
 name = "milo-cli"
-version = "0.2.0"
+version = "0.2.1"
 source = { editable = "." }
 dependencies = [
     { name = "kida-templates" },