diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index c3fbeea..0409363 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -2,8 +2,16 @@
 
 ## Summary
 
-This is the initial release, extracted from the [SDK v1.0.0rc601](https://github.com/frequenz-floss/frequenz-sdk-python/releases/tag/v1.0.0-rc601).
+- This is the initial release, extracted from the [SDK v1.0.0rc601](https://github.com/frequenz-floss/frequenz-sdk-python/releases/tag/v1.0.0-rc601).
+
+## Upgrading
+
+<!-- Here goes notes on how to upgrade from previous versions, including deprecations and what they should be replaced with -->
 
 ## New Features
 
-- Added support for `__round__` (`round(quantity)`), `__pos__` (`+quantity`) and `__mod__` (`quantity % quantity`) operators.
+- Add `QuantityT` type alias for `Quantity` and `QuantityLike` types.
+
+## Bug Fixes
+
+<!-- Here goes notable bug fixes that are worth a special mention or explanation -->
diff --git a/src/frequenz/quantities/__init__.py b/src/frequenz/quantities/__init__.py
index fcc68b1..a898261 100644
--- a/src/frequenz/quantities/__init__.py
+++ b/src/frequenz/quantities/__init__.py
@@ -76,6 +76,7 @@
     ```
 """
 
+from typing import TypeVar
 
 from ._current import Current
 from ._energy import Energy
@@ -86,13 +87,26 @@
 from ._temperature import Temperature
 from ._voltage import Voltage
 
-__all__ = [
+QuantityT = TypeVar(
+    "QuantityT",
+    "Quantity",
     "Current",
     "Energy",
     "Frequency",
     "Percentage",
     "Power",
+    "Temperature",
+    "Voltage",
+)
+
+__all__ = [
+    "QuantityT",
     "Quantity",
+    "Current",
+    "Energy",
+    "Frequency",
+    "Percentage",
+    "Power",
     "Temperature",
     "Voltage",
 ]