Noctua has recently announced that the company is providing free mounting kits to owners of existing coolers to make them compatible with Intel's latest LGA 1150 (Haswell) motherboards. The new NM-i115x mounting kit will allow enthusiasts to recycle their older Noctua coolers with the new platform without issue. The kit includes a new back plate with fixed struts and the necessary connectors (screws, springs, et al) to make alignment and mounting easier than previous setups.
Because the LGA 1150 socket keeps the same mounting hole spacing as the current LGA 1156 and LGA 1155 sockets, many newer Noctua cooler will not need the mounting kit upgrade, and can simply be installed into the Haswell machine as is. In other words, if the heatsink worked with your Lynnfield, Sandy Bridge, or Ivy Bridge-based system, it will work in a Haswell system as well. According to Noctua, the following coolers are already compatible with Haswell:
NH-C14, NH-D14, NH-C12P SE14, NH-L12, NH-L9i, NH-U12P SE2, NH-U9B SE2
If your cooler was released prior to LGA 1156, you will need to grab the NM-i115x mounting kit upgrade by filling out this form. Noctua will make the kit available on its website as well as in retail stores (for a minimal charge, though the company did not provide specific pricing). You will need to provide proof of purchase for your existing cooler by sending Noctua a scan or screenshot of your invoice or receipt.
For more information on the NM-i115x, head over to the Noctua product page.
It is nice to see Noctua standing behind its products like this, even if it only affects a small number of users that will be making the jump for LGA 775/ect to LGA 1150.