Abstract
For High-Luminosity operations, the ATLAS experiment will need to
make a series of upgrades to cope with extreme environment, including
replacing the entire inner detector with an all-silicon Inner Tracker
(ITk). After briefly describing the motivations for and full scale of the
ATLAS upgrade, this presentation will focus on the ITk: highlighting the
enabling technologies, the drivers for the design, limitations for this and
future experiments, and the current status of the project.