You can check for this update through Settings > Windows Update > check for updates. You will need to reboot afterward and check through Settings > System > About to confirm the WFEP version. Windows Feature Experience Pack updates are currently only being delivered to Insiders and follow the same process as regular builds and cumulative updates. Through these Packs, Microsoft intends to eventually deliver new feature improvements outside of the two annual Windows 10 feature updates. "Right now, we are starting out with a really scoped set of features and improvements," the company says. "Over time, we hope to expand the scope and the frequency of releases in the future."