diff --git a/.github/workflows/python-pytest.yml b/.github/workflows/python-pytest.yml
index e4d7945..7cc9631 100644
--- a/.github/workflows/python-pytest.yml
+++ b/.github/workflows/python-pytest.yml
@@ -1,15 +1,16 @@
 name: pytest
 
 on:
-  push:
   pull_request:
+    types: [opened, reopened]
+  push:
 
 jobs:
   build:
 
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
         os: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
 
diff --git a/.github/workflows/run-entry-points.yml b/.github/workflows/run-entry-points.yml
index f25ba88..2ef96e8 100644
--- a/.github/workflows/run-entry-points.yml
+++ b/.github/workflows/run-entry-points.yml
@@ -1,15 +1,16 @@
 name: run entry points
 
 on:
-  push:
   pull_request:
+    types: [opened, reopened]
+  push:
 
 jobs:
   build:
 
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
         os: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
 
diff --git a/README.md b/README.md
index 0795ef9..04a55c5 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Repository for yaq core python packages:
 
 Each of these projects is distributed as a separate package.
 
-These core packages are kept in one repository primarily such that, when needed, changes can be made simulatiously to multiple packages whithout breaking tests.
+These core packages are kept in one repository primarily such that, when needed, changes can be made simultaneously to multiple packages without breaking tests.
 
 Repository maintainers:
 - [Kyle Sunden](https://github.com/ksunden)
diff --git a/yaqd-core/CHANGELOG.md b/yaqd-core/CHANGELOG.md
index ea5dabb..5f8d640 100644
--- a/yaqd-core/CHANGELOG.md
+++ b/yaqd-core/CHANGELOG.md
@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/).
 
 ## [Unreleased]
 
+### Fixed
+- type hints for IsSensor attributes are appropriate for _n_-dimensional data
+
 ## [2023.11.0]
 
 ### Fixed
diff --git a/yaqd-core/pyproject.toml b/yaqd-core/pyproject.toml
index 4d2fac2..8bdd546 100644
--- a/yaqd-core/pyproject.toml
+++ b/yaqd-core/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "yaqd-core"
-author = [{name="yaq developers"}]
+authors = [{name="yaq developers"}]
 requires-python = ">=3.7"
 dependencies = ["platformdirs", "tomli", "tomli-w", "fastavro>=1.4.0"]
 readme="README.md"
@@ -20,6 +20,7 @@ classifiers=[
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
   "Topic :: Scientific/Engineering",
 ]
 
@@ -37,7 +38,7 @@ path = "yaqd_core/__version__.py"
 
 [tool.black]
 line-length = 99
-target-version = ['py37', 'py38']
+target-version = ['py311', "py312"]
 include = '\.pyi?$'
 exclude = '''
 /(
diff --git a/yaqd-core/yaqd_core/_has_measure_trigger.py b/yaqd-core/yaqd_core/_has_measure_trigger.py
index a3f3447..ed25962 100644
--- a/yaqd-core/yaqd_core/_has_measure_trigger.py
+++ b/yaqd-core/yaqd_core/_has_measure_trigger.py
@@ -1,29 +1,30 @@
+from __future__ import annotations
+
 __all__ = ["HasMeasureTrigger"]
 
 
 import asyncio
 import pathlib
-from typing import Dict, Any, Optional
+from typing import Any
 from abc import ABC, abstractmethod
 
 from yaqd_core import IsSensor, IsDaemon
-from ._is_sensor import MeasureType
 
 
 class HasMeasureTrigger(IsSensor, IsDaemon, ABC):
     def __init__(
-        self, name: str, config: Dict[str, Any], config_filepath: pathlib.Path
+        self, name: str, config: dict[str, Any], config_filepath: pathlib.Path
     ):
         super().__init__(name, config, config_filepath)
         self._looping = False
         if self._config["loop_at_startup"]:
             self.measure(loop=True)
 
-    def get_measured(self) -> MeasureType:
+    def get_measured(self) -> dict:
         return super().get_measured()
 
     @abstractmethod
-    async def _measure(self) -> MeasureType:
+    async def _measure(self) -> dict:
         """Do measurement, filling _measured dictionary.
 
         Returns dictionary with keys channel names, values numbers or arrays.
diff --git a/yaqd-core/yaqd_core/_is_daemon.py b/yaqd-core/yaqd_core/_is_daemon.py
index c6f03e1..c2940fe 100755
--- a/yaqd-core/yaqd_core/_is_daemon.py
+++ b/yaqd-core/yaqd_core/_is_daemon.py
@@ -87,7 +87,7 @@ def __init__(
         self._busy_sig = asyncio.Event()
         self._not_busy_sig = asyncio.Event()
 
-        self._loop = asyncio.get_event_loop()
+        self._loop = asyncio.get_running_loop()
 
         try:
             self._state_filepath.parent.mkdir(parents=True, exist_ok=True)
@@ -297,7 +297,16 @@ async def shutdown_all(cls, sig, loop):
         # This is done after cancelling so that shutdown tasks which require the loop
         # are not themselves cancelled.
         [d.close() for d in cls._daemons]
-        tasks = [t for t in asyncio.all_tasks() if t is not asyncio.current_task()]
+        tasks = [
+            t
+            for t in asyncio.all_tasks()
+            if (
+                t is not asyncio.current_task()
+                and "serve_forever" not in t.get_coro().__repr__()
+            )
+        ]
+        for task in tasks:
+            logger.info(task.get_coro())
         await asyncio.gather(*tasks, return_exceptions=True)
         [d._save_state() for d in cls._daemons]
         if hasattr(signal, "SIGHUP") and sig == signal.SIGHUP:
diff --git a/yaqd-core/yaqd_core/_is_sensor.py b/yaqd-core/yaqd_core/_is_sensor.py
index 735269b..1e050f9 100644
--- a/yaqd-core/yaqd_core/_is_sensor.py
+++ b/yaqd-core/yaqd_core/_is_sensor.py
@@ -1,24 +1,24 @@
+from __future__ import annotations
+
 __all__ = ["IsSensor"]
 
 
 import asyncio
 import pathlib
-from typing import Dict, Any, Union, Tuple, List
+from typing import Any
 
 import yaqd_core
 
-MeasureType = Dict[str, Union[float]]
-
 
 class IsSensor(yaqd_core.IsDaemon):
     def __init__(
-        self, name: str, config: Dict[str, Any], config_filepath: pathlib.Path
+        self, name: str, config: dict[str, Any], config_filepath: pathlib.Path
     ):
         super().__init__(name, config, config_filepath)
-        self._measured: MeasureType = dict()  # values must be numbers or arrays
-        self._channel_names: List[str] = []
-        self._channel_units: Dict[str, str] = dict()
-        self._channel_shapes: Dict[str, Tuple[int]] = dict()
+        self._measured: dict = dict()  # values must be numbers or arrays
+        self._channel_names: list[str] = []
+        self._channel_units: dict[str, str] = dict()
+        self._channel_shapes: dict[str, tuple[int, ...]] = dict()
         self._measurement_id = 0
         self._measured["measurement_id"] = self._measurement_id
 
@@ -37,7 +37,7 @@ def get_channel_units(self):
         """Get channel units."""
         return self._channel_units
 
-    def get_measured(self) -> MeasureType:
+    def get_measured(self) -> dict:
         assert "measurement_id" in self._measured
         return self._measured