Navigation property at nopCommerce4.5

Do the navigation properties are completely remove from nopCommerce4.5 ?

Navigation properties were removed in v4.3

So if I need a child table then keep the Id of the child table to the parent table and join that table with the parent table?

Yes for example Customer Table has

        /// <summary>
        /// Gets or sets the billing address identifier
        /// </summary>
        public int? BillingAddressId { get; set; }

        /// <summary>
        /// Gets or sets the shipping address identifier
        /// </summary>
        public int? ShippingAddressId { get; set; }

Which is the Id's for the Addresses stored in Address Table