All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.

<a name="1.4.0"></a>

* **button:** allow custom size classes to be passed to the size prop ([#1389](https://github.com/bootstrap-vue/bootstrap-vue/issues/1389)) ([41a46b2](https://github.com/bootstrap-vue/bootstrap-vue/commit/41a46b2))

* **carousel:** clear timers on beforeDestroy ([fa1c083](https://github.com/bootstrap-vue/bootstrap-vue/commit/fa1c083))

* SFC transpilation in es buld ([#1410](https://github.com/bootstrap-vue/bootstrap-vue/issues/1410)) ([3ef9572](https://github.com/bootstrap-vue/bootstrap-vue/commit/3ef9572))

* **dropdowns:** add boundary prop for controlling placement constraint ([#1440](https://github.com/bootstrap-vue/bootstrap-vue/issues/1440)) ([01498cb](https://github.com/bootstrap-vue/bootstrap-vue/commit/01498cb))

* **form-group:** new label-size prop ([b8311e5](https://github.com/bootstrap-vue/bootstrap-vue/commit/b8311e5))

* **v-b-toggle:** add role 'button' when trigger is not a button ([c2dd2d0](https://github.com/bootstrap-vue/bootstrap-vue/commit/c2dd2d0))

* **dropdowns:** use non reactive property to store popper.js instance ([#1416](https://github.com/bootstrap-vue/bootstrap-vue/issues/1416)) ([379d9a8](https://github.com/bootstrap-vue/bootstrap-vue/commit/379d9a8))

* evalute slots() once in functional component render functions ([#1438](https://github.com/bootstrap-vue/bootstrap-vue/issues/1438)) ([3c42477](https://github.com/bootstrap-vue/bootstrap-vue/commit/3c42477))