Breaking changes
increments() no longer works on PostgreSQL.
ColumnDefinitionBuilder.increments() no longer converts the column's data type to serial or bigserial on postgres, but instead always adds an auto_increments specifier. This means that you need to remove increments calls in postgres migrations and use the serial or bigserial data type directly. Simply remove the increments call and change int or integer to serial and bigint or biginteger to bigserial on that column.