Parameters in the Collateral Box can't be changed once deployed therefore, in order to change them, new markets will be added with updated parameters, and the previous one are deprecated.
Scroll down to the bottom of the "BORROW" page to find all the deprecated markets!
When a Collateral Box is deprecated it only means that no more KASH replenishes will happen. The Collateral Box itself is still fully operational, and if a users has an open position it can still be repaid at thier own pace and time!
Bear in mind that if you had a position open in a deprecated market, your collateral won't be showing up in the new market.