Speaker
Description
The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) has been using Skipper-CCDs with the aim of detecting CEvNS near the Angra-2 reactor since 2021. These detectors have demonstrated exceptional sensitivity to low-energy ionization signals thanks to their sub-electron resolution and ultra-low noise performance. Recent analyses with reactor data have produced competitive limits on neutrino interactions mediated by light vector bosons, stringent bounds on dark matter-electron scattering, and world-leading limits on relativistic millicharged particles. In 2024, a new Multi-Chip Module (MCM) based on the Oscura detector design was installed, integrating 16 Skipper-CCDs and increasing the active silicon mass to 8 g. This contribution focuses on the commissioning and performance of the MCM, including detector operation, readout stability, noise characterization, and background studies. We also discuss the latest results obtained with the upgraded detector and the prospects for future low-energy neutrino and rare-event searches with larger exposures and improved detector performance.