San Francisco (sans-serif typeface) and iOS 10 is a new variant named "SF Compact Rounded". It is used in the new contact placeholder icons introduced in the OSes. The "SF Serif" variant was showcased during the keynote at WWDC 2018 on June 4, 2018 when the all-new Apple Books app was introduced. This variant is exclusive to Apple Books in iOS 12 and macOS Mojave, is not mentioned in Apple's Typography design guidelines, and is not publicly downloadable like other variants of the San Francisco typeface. Since its introduction, San Francisco has gradually replaced most of Apple's other typefaces on their software and hardware
San Francisco and San Jose Railroad created the first bridge across San Francisco Bay; and the Bayshore Cutoff, which rerouted the line between San Francisco and San Bruno to the east of San Bruno Mountain, along the San Francisco Bay shoreline. The alignment of BART in San Mateo County follows the right-of-way established by the SF&SJ west of San Bruno Mountain that was abandoned with the opening of the Bayshore Cutoff. In 1977 SP petitioned the California Public Utilities Commission to discontinue the Peninsula Commute service, and the State of California took over financial responsibility in July 1980. SP eventually sold the entire Peninsula Commute right-of-way