Upgrade Guide from 1.0 -> 2.0

Breaking Changes

Cart Item

Removed price , I suggest using subTotal instead.
Removed netTotal -- probably will put back in
addSubItem(array $subItem, $autoUpdate = true) -> addSubItem(array $subItem)
subTotal($format = true, $withDiscount = true, $taxedItemsOnly = false, $withTax = false) -> subTotal($format = true)
subItemsTotal($format = true, $taxedItemsOnly = false, $withTax = false) -> subItemsTotal($format = true)
tax($amountNotTaxable = 0, $grossTax = true, $rounded = false, $withDiscount = true) -> tax($format = true)

Cart Sub Item

Removed price , I suggest using subTotal instead.

Coupons

code removed
forItem removed
discount($throwErrors = false) -> discount()
getFailedMessage removed

LaraCart

total($format = true, $withDiscount = true, $withTax = true, $withFees = true) -> total($format = true);
subTotal($format = true, $withDiscount = true) -> subTotal($format = true);
feeTotals($format = true); -> feeSubTotal($format = true);
taxTotal($format = true, $withFees = true, $grossTaxes = true, $withDiscounts = true) -> taxTotal($format = true)
totalDiscount($format = true, $withItemDiscounts = true) -> discountTotal($format = true)

Config

tax_by_item removed (now the default)
tax_item_before_discount removed
round_every_item_price removed (now the default)
discountTaxable removed
discountsAlreadyTaxed removed
discountOnFees -> discount_fees
fees_taxable added