Decryption key:
improved Updated Bootstrap to 4.6.2
Class attribute value changes we made that you might have to do also:
Change pull-left and pull-right to float-left and float-right
Change col-xs-12 to col-12
Change col-{md,lg}-push-3 to order-{md,lg}-2 (and similar for other col-to-order changes)
Change hidden-lg-up to d-lg-none
Change navbar-toggleable-md to navbar-expand-md d-lg-block
Change push-lg-3 to order-lg-last
Change pull-lg-9 to order-lg-first
Change hidden-md-down to d-none d-lg-block
