The IBIS 2.0 project upgrades the Interferometric BIdimensional Spectrometer, which was operated at the Dunn Solar Telescope of the National Solar Observatory from 2003 to 2019, for installation at a new telescope at the Teide Observatory. The instrument combines two tunable Fabry-P´erot interferometers, narrowband interference filters, a polarimetric unit, fast cameras, and a suitable control for the acquisition of high-resolution spectropolarimetric data of the solar atmosphere in the 580–860 nm spectral range with short exposures at high cadence under a remote control. The project underwent several phases. We provide an update on the design progress of the instrument and the status of the project, with special emphasis on the challenges arising from the vertical setup required by the new installation. IBIS 2.0 is expected to contribute to a better knowledge of plasma properties at different heights in the solar atmosphere.
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