The LHCb RICH detectors between present and future

During Run1 and Run2 the two RICH detectors operated continuosly at the luminosity of ∼ 4 × 10$^{32}$ cm $^{−2s}$$^{−1}$ and provided an excellent particle identification information (PID) for final-state charged hadrons. In order to be able to operate at the luminosity of ∼ 2 × 10$^{33}$ cm $^{−2}$s $^{−1}$ from the start of Run3 in 2021 the two RICH detectors must be upgraded; the former HPD (Hybrid Photon Detectors) will be replaced by commercial MaPMTs, the optics of the upstream RICH will be modified and the electronics will be upgraded to cope with the challenges of the 40MHz readout rate. In this paper the current status of the upgrade will be presented. The start of the HL-LHC phase in 2027 provides an opportunity to increase the luminosity up to ∼ 10$^{34}$ cm $^{−2}$s $^{−1}$. To be able to operate the RICH detectors in this much harsher environment a further upgrade will be mandatory; in this paper possible photodetector candidates will be discussed along with new ideas to improve the PID efficiency using time information.