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Aug 27, 2025
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Clear release notes #177

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27 changes: 6 additions & 21 deletions RELEASE_NOTES.md
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## Summary

This release removes the `timezonefinder` dependency to significantly reduce package size by 66M+ and enable ARM platform support.

> [!WARNING]
> This is a **breaking change** shipped in a patch release because this feature has no known users.
<!-- Here goes a general summary of what this release is about -->

## Upgrading

The `Location.timezone` field no longer performs automatic timezone lookup from latitude/longitude coordinates.
<!-- Here goes notes on how to upgrade from previous versions, including deprecations and what they should be replaced with -->

```python
# Automatic timezone lookup (no longer works)
location = Location(latitude=52.52, longitude=13.405)
print(location.timezone) # Previously: ZoneInfo('Europe/Berlin'), now None
```
## New Features

If you need timezone lookup from coordinates, install [`timezonefinder`](https://pypi.org/project/timezonefinder/) separately and implement manual lookup:
<!-- Here goes the main new features and examples or instructions on how to use them -->

```python
# Install: pip install timezonefinder
from timezonefinder import TimezoneFinder
from zoneinfo import ZoneInfo
from frequenz.client.microgrid import Location
## Bug Fixes

tf = TimezoneFinder()
tz_name = tf.timezone_at(lat=52.52, lng=13.405)
timezone = ZoneInfo(tz_name) if tz_name else None
location = Location(latitude=52.52, longitude=13.405, timezone=timezone)
```
<!-- Here goes notable bug fixes that are worth a special mention or explanation -->