Update release notes

Signed-off-by: cwasicki <[email protected]>

Author: cwasicki

RELEASE_NOTES.md

@@ -2,12 +2,15 @@
 
 ## Summary
 
-Renamed the `"load"` component type to `"consumption"` for clarity.
 
 ## Upgrading
 
-- If your code references `"load"` as a component type, update it to `"consumption"`.
-- Made the `MicrogridConfig` reader tolerant to missing `ctype` fields, allowing collection of incomplete microgrid configs.
+* Made the `MicrogridConfig` reader tolerant to missing `ctype` fields, allowing collection of incomplete microgrid configs.
+* Formula configs are now defined per metric to support different formulas for each metric in the same config file.
+  This is a breaking change which requires updating the formula fields in the config file.
+* Default formulas are defined for AC active power and battery SoC metrics.
+  The default SoC calculation uses simple averages and ignore different battery capacities.
+* The `cids` method is changed to support getting metric-specific CIDs which in this case are extracted from the formula.
 
 ## New Features