- **ngModelOptions:** allow options to be inherited from ancestor `ngModelOptions` ([296cfc](https://github.com/angular/angular.js/commit/296cfce40c25e9438bfa46a0eb27240707a10ffa) [#10922](https://github.com/angular/angular.js/issues/10922))

- **$compile:** set `preAssignBindingsEnabled` to false by default ([bcd0d4](https://github.com/angular/angular.js/commit/bcd0d4d896d0dfdd988ff4f849c1d40366125858) [#15352](https://github.com/angular/angular.js/issues/15352))

## Bug Fixes

- **ngModelOptions:** handle debounce of `updateOn` triggers that are not in debounce list ([789790](https://github.com/angular/angular.js/commit/789790feee4d6c5b1f5d5b18ecb0ccf6edd36fb3))

- **ngMock/$controller:** respect `$compileProvider.preAssignBindingsEnabled()` ([7d9a79](https://github.com/angular/angular.js/commit/7d9a791c6a8c80d29d6c84afa287c81f2a307439))

- **$location:** throw if the path starts with double (back)slashes ([4aa953](https://github.com/angular/angular.js/commit/4aa9534b0fea732d6492a2863c3ee7e077c8d004))

- **core:** do not auto-bootstrap when loaded from an extension. ([0ff10e](https://github.com/angular/angular.js/commit/0ff10e1b56c6b7c4ac465e35c96a5886e294bac5))

- **input[radio]:** use strict comparison when evaluating checked-ness ([5ac7da](https://github.com/angular/angular.js/commit/5ac7daea72ec31cf337d1d21b13f0d17ff33994f) [#15288](https://github.com/angular/angular.js/issues/15288))

## Reverts

- **ngOptions:** avoid calls to `element.value` ([3b7f29](https://github.com/angular/angular.js/commit/3b7f29ff63e8bf02327a1430dcc2a4c83915a206))

## Breaking Changes

- **feat($compile): set preAssignBindingsEnabled to false by default ([bcd0d4](https://github.com/angular/angular.js/commit/bcd0d4d896d0dfdd988ff4f849c1d40366125858))**:

or possibly by using `Function.prototype.bind` or `angular.bind`.

- **[975a61](https://github.com/angular/angular.js/commit/975a6170efceb2a5e6377c57329731c0636eb8c8)**: do not overwrite the default `$isEmpty()` method for checkboxes

Custom `checkbox`-shaped controls (e.g. checkboxes, menuitemcheckboxes), no longer have a custom

production apps in the first place.

`link[href]` attributes are now protected via `$sce`, which prevents interpolated

values that fail the `RESOURCE_URL` context tests from being used in interpolation.