v2.21.2

b-dropdown
- #6274 Only apply heading role to header when not a header tag
b-table
- #6266 Allow responsive and stacked props together
- #6251 Only set aria-describedby when caption really exists
general
- #6265 Clean up props inheritance
- #6226 Environment detection based on userAgent
b-form-datepicker/b-form-timepicker
- #6249 Control size
b-sidebar
- #6234 Make sure to not exceed 100% in height
b-icon
- #6233 Title render handling

b-dropdown
- #6274 Only apply heading role to header when not a header tag
b-table
- #6266 Allow responsive and stacked props together
- #6251 Only set aria-describedby when caption really exists
general
- #6265 Clean up props inheritance
- #6226 Environment detection based on userAgent
b-form-datepicker/b-form-timepicker
- #6249 Control size
b-sidebar
- #6234 Make sure to not exceed 100% in height
b-icon
- #6233 Title render handling

bootstrap-vue