Clear release notes (#871)

Author: llucax

RELEASE_NOTES.md

@@ -2,113 +2,16 @@
 
 ## Summary
 
-This release represents 3 months of work so it includes a lot of changes. Most of them are (breaking) API changes, in the hopes to make a more consistent and easier to use SDK 1.0. There are also quite a few bug fixes and a couple of new features.
+<!-- Here goes a general summary of what this release is about -->
 
 ## Upgrading
 
-- The `BatteryPool.power_status` method now streams objects of type `BatteryPoolReport`, replacing the previous `Report` objects.
-
-- `Channels` has been upgraded to version 1.0.0b2, for information on how to upgrade please read [Channels release notes](https://github.com/frequenz-floss/frequenz-channels-python/releases/tag/v1.0.0-beta.2).
-
-- In `BatteryPoolReport.distribution_result`,
-  * the following fields have been renamed:
-    + `Result.succeeded_batteries` → `Result.succeeded_components`
-    + `Result.failed_batteries` → `Result.failed_components`
-    + `Request.batteries` → `Request.component_ids`
-  * and the following fields are now type-hinted as `collections.abc.Set`, to clearly indicate that they are read-only:
-    + `Result.succeeded_components`
-    + `Result.failed_components`
-
-
-- The `Fuse` class has been moved to the `frequenz.sdk.timeseries` module.
-
-- `microgrid.grid()`
-  - A `Grid` object is always instantiated now, even if the microgrid is not connected to the grid (islanded microgrids).
-  - The rated current of the grid fuse is set to `Current.zero()` in case of islanded microgrids.
-  - The grid fuse is set to `None` when the grid connection component metadata lacks information about the fuse.
-  - Grid power and current metrics were moved from `microgrid.logical_meter()` to `microgrid.grid()`.
-
-    Previously,
-
-    ```python
-    logical_meter = microgrid.logical_meter()
-    grid_power_recv = logical_meter.grid_power.new_receiver()
-    grid_current_recv = logical_meter.grid_current.new_receiver()
-    ```
-
-    Now,
-
-    ```python
-    grid = microgrid.grid()
-    grid_power_recv = grid.power.new_receiver()
-    grid_current_recv = grid.current.new_receiver()
-    ```
-
-- Consumer and producer power formulas were moved from `microgrid.logical_meter()` to `microgrid.consumer()` and `microgrid.producer()`, respectively.
-
-    Previously,
-
-    ```python
-    logical_meter = microgrid.logical_meter()
-    consumer_power_recv = logical_meter.consumer_power.new_receiver()
-    producer_power_recv = logical_meter.producer_power.new_receiver()
-    ```
-
-    Now,
-
-    ```python
-    consumer_power_recv = microgrid.consumer().power.new_receiver()
-    producer_power_recv = microgrid.producer().power.new_receiver()
-    ```
-
-- The `ComponentGraph.components()` parameters `component_id` and `component_category` were renamed to `component_ids` and `component_categories`, respectively.
-
-- The `GridFrequency.component` property was renamed to `GridFrequency.source`
-
-- The `microgrid.frequency()` method no longer supports passing the `component` parameter. Instead the best component is automatically selected.
-
-- The `actor.ChannelRegistry` was rewritten to be type-aware and just a container of channels. You now need to provide the type of message that will be contained by the channel and use the `get_or_create()` method to get a channel and the `stop_and_remove()` method to stop and remove a channel. Once you get a channel you can create new senders and receivers, or set channel options, as usual. Please read the docs for a full description, but in general this:
-
-    ```python
-    r = registry.new_receiver(name)
-    s = registry.new_sender(name)
-    ```
-
-    Should be replaced by:
-
-    ```python
-    r = registry.get_or_create(T, name).new_receiver()
-    s = registry.get_or_create(T, name).new_sender()
-    ```
-
-- The `ReceiverFetcher` interface was slightly changed to make `maxsize` a keyword-only argument. This is to make it compatible with the `Broadcast` channel, so it can be considered a `ReceiverFetcher`.
+<!-- Here goes notes on how to upgrade from previous versions, including deprecations and what they should be replaced with -->
 
 ## New Features
 
-- A new method `microgrid.voltage()` was added to allow easy access to the phase-to-neutral 3-phase voltage of the microgrid.
-
-- The `actor.ChannelRegistry` is now type-aware.
-
-- A new class method `Quantity.from_string()` has been added to allow the creation of `Quantity` objects from strings.
+<!-- Here goes the main new features and examples or instructions on how to use them -->
 
 ## Bug Fixes
 
-- 0W power requests are now not adjusted to exclusion bounds by the `PowerManager` and `PowerDistributor`, and are sent over to the microgrid API directly.
-
-- `microgrid.frequency()` / `GridFrequency`:
-
-  * Fix sent samples to use `Frequency` objects instead of raw `Quantity`.
-  * Handle `None` values in the received samples properly.
-  * Convert `nan` values in the received samples to `None`.
-
-- The resampler now properly handles sending zero values.
-
-  A bug made the resampler interpret zero values as `None` when generating new samples, so if the result of the resampling is zero, the resampler would just produce `None` values.
-
-- The PowerManager no longer holds on to proposals from dead actors forever.  If an actor hasn't sent a new proposal in 60 seconds, the available proposal from that actor is dropped.
-
-- Fix `Quantity.__format__()` sometimes skipping the number for very small values.
-
-- Not strictly a bug fix, but the microgrid API version was bumped to v0.15.3, which indirectly bumps the common API dependency to v0.5.x, so the SDK can be compatible with other APIs using a newer version of the common API.
-
-  Downstream projects that require a `frequenz-api-common` v0.5.x and want to ensure proper dependency resolution should update their minimum SDK version to this release.
+<!-- Here goes notable bug fixes that are worth a special mention or explanation -->