Docs for #2079

derivationRequiresObservable & observablesRequiresReaction

docs/refguide/api.md

@@ -521,6 +521,22 @@ Use this if you want to check whether you are using computed properties without
 configure({ computedRequiresReaction: true });
 ```
 
+#### `observableRequiresReaction: boolean`
+Warns about any unobserved observable access.  
+Use this if you want to check whether you are using observables without a reactive context (eg react component without observer wrapping).
+
+```javascript
+configure({ observableRequiresReaction: true });
+```
+
+#### `reactionRequiresObservable: boolean`
+Warns when a reaction is created without any observable access.  
+Use this to check whether you are unneededly wrapping react components with `observer`, or to find possible related bugs.
+
+```javascript
+configure({ reactionRequiresObservable: true });
+```
+
 #### `computedConfigurable: boolean`
 Allows overwriting computed values. This is useful for testing purposes *only*. Don't enable this
  on production as it can cause memory-leaks.