chore: update changelog for 0.6.0 release

 * Describe changes for 0.6.0 release relative to 0.5.0 release

CHANGELOG.md

@@ -1,3 +1,60 @@
+<a name="0.6.0"></a>
+
+# [0.6.0](https://github.com/briebug/ngrx-auto-entity/compare/0.5.0...0.6.0) Beta (2021-04-02)
+
+Auto-Entity version 0.6 introduces NgRx 8+ compatible action factory functions. Similar to the
+kind of actions (technically factory functions that create actions!) you get when using the
+`createAction` factory function from NgRx itself. This change is NON-Breaking, as all legacy
+actions remain in place and fully usable, allowing migration to the new actions to be done
+progressively if necessary.
+
+New actions may be destructured from the object returend by calling `buildState` and `buildFeatureState`,
+as with all other auto-entity state functionality. Simply destructure the new `actions` property:
+
+```typescript
+export const {
+  actions: {
+    loadAll: loadAllCustomers,
+    create: createCustomer,
+    update: updateCustomer,
+    delete: deleteCustomer,
+    select: selectCustomer,
+    deselect: deselectCustomer,
+    // ... many more!
+  }
+} = buildState(Customer);
+```
+
+Actions introduce a new mechanism for building auto-entity state. Only the actions that are actually
+used (i.e. destructured) are actually created for the specified entity. This should limit the amount
+of memory used for auto-entity related functionality. This mechanism will be expanded
+to the rest of the state related functionality that can be generated by the build state calls
+in the future. 
+
+The breaking changes this release should be minimally breaking, and mostly backwards compatible except
+in fringe cases covering more unusual use cases. Conversion of selection properties from read only getters
+to simple fields should improve the unit testability of facades by allowing simpler mocks, stubs, and fakes, 
+easier spying, etc. This may also improve support for more custom use cases and extensions in concrete
+facade classes.  
+
+### Features 
+- **actions:** Add NgRx 8+ style action factory functions (#76)
+- **util:** Add support for NgRx 8+ style action factory generation (#76)
+- **actions:** Add "bare edit" support with `EditNew` action (#161)
+- **facades:** Add "bare edit" support with `editNew` activity method (#161)
+- **selectors:** Add new `selectHasEntities` and `selectHasNoEntities` selectors (#149)
+- **facades:** Add new `hasEntities$` and `hasNoEntities$` selections to facades (#149)
+
+### Bug Fix
+- **reducer:** Fix issue with meta reducer not calling next reducer with next state (#170)
+- **decorators:** Fix @Key decorator to only try to attach NAE_KEYS internal property if it has not yet been set
+- **reducer:** Add missing `updatedAt` and `replacedAt` timestamps in state for each entity
+
+### Breaking Changes !!
+- **facades:** Convert getter properties to fields to improve unit testability/mocking/spying (#150)
+
+
+
 <a name="0.5.0"></a>
 
 # [0.5.0](https://github.com/briebug/ngrx-auto-entity/compare/0.4.2...0.5.0) Beta (2020-10-16)