diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index 07b201d..5dc19d9 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -9,6 +9,12 @@ on:
       - dev
   workflow_dispatch:
 
+# A new push to a PR supersedes the run already in flight for that ref, so a
+# wedged job cannot sit on a runner while its replacement queues behind it.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   build:
     strategy:
@@ -17,6 +23,7 @@ jobs:
         os:
           - "ubuntu-latest"
     runs-on: ${{matrix.os}}
+    timeout-minutes: 30
 
     steps:
       - uses: actions/checkout@v4
diff --git a/pyproject.toml b/pyproject.toml
index 489ec2a..c468dd6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,13 +8,13 @@ readme = "README.md"
 requires-python = ">=3.10"
 dynamic = ["version"]
 dependencies = [
-    # 3.10.0b2 for CoordinateAxis.fingerprint and AxisArray.chunk_dim, which
+    # 3.10.0b3 for CoordinateAxis.fingerprint and AxisArray.stream_dim, which
     # ezmsg-baseproc's default state hash reads. Pinned directly rather than
     # left to the transitive requirement: uv only enables pre-releases for a
     # package named with a pre-release marker in *this* file.
-    "ezmsg>=3.10.0b2",
+    "ezmsg>=3.10.0b3",
     "ezmsg-baseproc>=1.13.0",
-    "ezmsg-sigproc>=3.8.1",  # BinnedAggregate must resolve chunk_dim from axis=None
+    "ezmsg-sigproc>=3.8.1",  # BinnedAggregate must resolve stream_dim from axis=None
     "sparse>=0.17.0",
     "numpy>=2.2.6",
     "numba>=0.65.1",
diff --git a/src/ezmsg/event/binned.py b/src/ezmsg/event/binned.py
index 451fc2c..30c0717 100644
--- a/src/ezmsg/event/binned.py
+++ b/src/ezmsg/event/binned.py
@@ -46,7 +46,7 @@ class BinnedEventAggregatorSettings(ez.Settings):
         Scheduled for removal in 2.0. Binning carries an open partial bin across
         message boundaries, which is only meaningful along the dimension messages
         accumulate along; that dimension now comes from
-        :attr:`~ezmsg.util.messages.axisarray.AxisArray.chunk_dim`."""
+        :attr:`~ezmsg.util.messages.axisarray.AxisArray.stream_dim`."""
 
     def __post_init__(self) -> None:
         warn_axis_deprecated(self, package="ezmsg-event", removal="2.0")
diff --git a/src/ezmsg/event/peak.py b/src/ezmsg/event/peak.py
index 941aaf8..38cd85b 100644
--- a/src/ezmsg/event/peak.py
+++ b/src/ezmsg/event/peak.py
@@ -130,7 +130,7 @@ def _reset_state(self, message: AxisArray) -> None:
             # This module works on "time" throughout (see get_axis_idx calls
             # below), so the scaler has to as well -- they share the state that
             # normalises the samples being thresholded. Suppressed rather than
-            # dropped for that reason: letting the scaler follow chunk_dim while
+            # dropped for that reason: letting the scaler follow stream_dim while
             # everything around it used "time" would be worse than either.
             with suppress_axis_deprecation():
                 self._state.scaler = AdaptiveStandardScalerTransformer(
diff --git a/tests/test_binned.py b/tests/test_binned.py
index 4f7ced7..f4599f5 100644
--- a/tests/test_binned.py
+++ b/tests/test_binned.py
@@ -226,7 +226,7 @@ def test_fractional_false_sample_locked(fs: float):
 class TestTheAxisSettingIsDeprecated:
     """``axis`` is going away in 2.0: binning carries an open partial bin across
     message boundaries, which is only meaningful along the dimension messages
-    accumulate along. That dimension comes from ``AxisArray.chunk_dim``."""
+    accumulate along. That dimension comes from ``AxisArray.stream_dim``."""
 
     @staticmethod
     def _msg(n=64, fs=200.0):
@@ -237,7 +237,7 @@ def _msg(n=64, fs=200.0):
             dims=["time", "ch"],
             axes={"time": AxisArray.TimeAxis(fs=fs)},
             key="dev",
-            chunk_dim="time",
+            stream_dim="time",
         )
 
     @staticmethod
diff --git a/tests/test_state_reset_semantics.py b/tests/test_state_reset_semantics.py
index a6ce106..78b6a9b 100644
--- a/tests/test_state_reset_semantics.py
+++ b/tests/test_state_reset_semantics.py
@@ -50,7 +50,7 @@ def dense_msg(labels, n_time=600, fs=FS, key="dev", seed=0):
             "ch": CoordinateAxis(data=np.array(labels), dims=["ch"]),
         },
         key=key,
-        chunk_dim="time",
+        stream_dim="time",
     )
 
 
@@ -67,7 +67,7 @@ def sparse_msg(labels, n_time=600, fs=FS, key="dev", dtype=bool):
             "ch": CoordinateAxis(data=np.array(labels), dims=["ch"]),
         },
         key=key,
-        chunk_dim="time",
+        stream_dim="time",
     )
 
 
@@ -83,7 +83,7 @@ def at_sample(labels, sample_ix, n_time=600, fs=FS, key="dev"):
             "ch": CoordinateAxis(data=np.array(labels), dims=["ch"]),
         },
         key=key,
-        chunk_dim="time",
+        stream_dim="time",
     )
 
 
@@ -150,7 +150,7 @@ def test_refractory_elapsed_counters_do_not_carry_over(self):
 
 class TestWhatMustNotResetStillDoesNot:
     def test_chunk_size_jitter_is_ignored(self):
-        """The chunk dimension's length is whatever arrived; rebuilding on it
+        """The stream dimension's length is whatever arrived; rebuilding on it
         would throw away the trailing buffer on every irregular chunk."""
         proc = ThresholdCrossingTransformer(ThresholdSettings(threshold=-1.0))
         proc(dense_msg(ARM_A, n_time=600))