The first LHCb upgrade will take data at an instantaneous luminosity of 2 × 10 33 cm −2 s −1 starting in 2022. Due to the high rate of beauty and charm signals LHCb has chosen as its baseline to read out the entire detector into a software trigger running at the LHC collision frequency of 30 MHz. This High Level Trigger (HLT) will enable unprecedented flexibility for trigger selections. To provide a flexible trigger, the key features of the trigger selection framework are discussed here as well as the current performance.

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