Update release notes

Signed-off-by: Leandro Lucarella <[email protected]>

Author: llucax

RELEASE_NOTES.md

@@ -6,7 +6,16 @@
 
 ## Upgrading
 
-<!-- Here goes notes on how to upgrade from previous versions, including deprecations and what they should be replaced with -->
+- Now component and microgrid IDs are wrapped in new classes: `ComponentId` and `MicrogridId` respectively.
+
+   These classes provide type safety and prevent accidental errors by:
+
+   - Making it impossible to mix up microgrid and component IDs (equality comparisons between different ID types always return false).
+   - Preventing accidental math operations on IDs.
+   - Providing clear string representations for debugging (MID42, CID42).
+   - Ensuring proper hash behavior in collections.
+
+   To migrate you just need to wrap your `int` IDs with the appropriate class: `0` -> `ComponentId(0)` / `MicrogridId(0)`.
 
 ## New Features