[Connectivity] dropping lease times

I just noticed that the lease lifetimes have been dropping since about a week ago. I wonder what Comcast is up to? Maybe just some routine maintenance. All three leases (IPv4, IPv6 addr, and IPv6 PD) have had the same drop. Here's the IPv6 PD: (second column is lease start time in ISO yyyymmddThhmmss format, last column is lease lifetime. The 3152 was due to some maintenance I was doing.) IP6PD 20141116T154859 2601:6:hijk:m0::/60 3600 IP6PD 20141116T151900 2601:6:hijk:m0::/60 3600 IP6PD 20141116T144859 2601:6:hijk:m0::/60 3600 IP6PD 20141116T142244 2601:6:hijk:m0::/60 3152 IP6PD 20141116T141515 2601:6:hijk:m0::/60 3600 IP6PD 20141116T134514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T131514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T124515 2601:6:hijk:m0::/60 3600 IP6PD 20141116T121514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T114514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T111515 2601:6:hijk:m0::/60 3600 IP6PD 20141116T104514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T101514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T094515 2601:6:hijk:m0::/60 3600 IP6PD 20141116T091514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T084514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T081515 2601:6:hijk:m0::/60 3600 IP6PD 20141116T074514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T071514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T064515 2601:6:hijk:m0::/60 3600 IP6PD 20141116T061514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T054514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T051515 2601:6:hijk:m0::/60 3600 IP6PD 20141116T044514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T041514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T034515 2601:6:hijk:m0::/60 3600 IP6PD 20141116T031514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T024514 2601:6:hijk:m0::/60 3600 IP6PD 20141116T021515 2601:6:hijk:m0::/60 3600 IP6PD 20141116T014514 2601:6:hijk:m0::/60 3600 IP6PD 20141115T134514 2601:6:hijk:m0::/60 86400 IP6PD 20141115T014515 2601:6:hijk:m0::/60 86400 IP6PD 20141114T134514 2601:6:hijk:m0::/60 86400 IP6PD 20141114T014514 2601:6:hijk:m0::/60 86400 IP6PD 20141113T134515 2601:6:hijk:m0::/60 86400 IP6PD 20141113T014514 2601:6:hijk:m0::/60 86400 IP6PD 20141112T134514 2601:6:hijk:m0::/60 86400 IP6PD 20141112T014515 2601:6:hijk:m0::/60 86400 IP6PD 20141111T134514 2601:6:hijk:m0::/60 86400 IP6PD 20141109T134514 2601:6:hijk:m0::/60 345600 IP6PD 20141107T134515 2601:6:hijk:m0::/60 345600 IP6PD 20141105T134514 2601:6:hijk:m0::/60 345600 =fini=