The latest cumulative update of hotfixes for the AX 2012 R3 has been released from LCS, the original release post from the Dynamics AX in Market Engineering team can be found
here. The latest build has been updated to 6.3.3000.110 but if you use slip stream option for a full installation the build number will be shown as 6.3.3000.111.
Coming back to the post what's updated in the latest hotfix basket in Retail, probably the most important is the
POS performance. The biggest strength in the Retail POS is its ability to automatically calculate the best discount that can be applied to the transaction based on the products/store/customer/period combinations. But it turns out to be the biggest performance backdrop if the discounts/products increases more than tens of thousands of records. It seems there has been some issues addressed for these scenarios by adding a maximum number of steps/loops before the best price has been picked up for the product within the shopping cart. And this has been implemented as a configuration in the Retail parameters. The functionality should have come long time back, even though too late but better now than never.