We the Fedora Respins-SIG are happy to announce new F25-20170428 Updated Lives. (with Kernel 4.10.12). This round also has an additional Updated Security Lab Spin in supportof the upcoming LFNW 2017
With F25 we are now using Livemedia-creator to build the updated lives.
To build your own please look at https://fedoraproject.org/wiki/Livemedia-creator-_How_to_create_and_use_a_Live_CD
With this new build of F25 Updated Lives will save you about 800 M of updates after install.