Following the project re-baselining in summer 2016, the layout and optics of the high luminosity insertion regions were reviewed and the performance re-evaluated.

The 2017 Chamonix workshop featured three joint sessions between the HL-LHC and the LIU project. The main observations from Chamonix 2017 relevant for the HL-LHC project were the following ones.

The implementation of the EVM (Earned Value Management) system for the HL-LHC project was ready for the 2nd Cost & Schedule Review (CSR) that was held in October 2016.

The third edition of the HiLumi Industry Day took place in Warrington, a few minutes away from Daresbury Laboratory, in May 2017. This two-day event jointly organised by CERN and STFC gathered some 200 participants from 17 European countries.

Following the re-baselining exercise for the HL-LHC project in June 2016, the HL-LHC project implemented several scope changes ith respect to the PDR that was issued at the end of the EU funded HiLumi Design Study.

During a measurement campaign in 2017 at the LHC, it was clearly demonstrated for the first time the beam lifetime improvement due to a compensation of the beam-beam long range effects, using DC current baring wires.

The 2018 Chamonix workshop featured three sessions for the HL-LHC project. The sessions at Chamonix provided the first chance for a technical and performance review of the project following the re-baselining in 2016.

The 3rd Cost & Schedule Review of the projects HL-LHC and LIU was held at CERN on 26th – 28th of March 2018. As usual, the panel is composed by the CMAC (CERN Machine Advisory Committee) members with the addition of a few other international experts

The 7th HL-LHC Collaboration Board took place during the 7th HL-LHC Annual Meeting in November 2017, jointly organized by CIEMAT and CERN in Madrid, Spain. One of the focuses of the 7th HLCB meeting was a summary of the existing agreements for in-kind.

As mentioned in the closing remarks of the 8th HL-LHC Annual Meeting held at CERN (18th October 2018), the project is experiencing a mix of success and difficulties while passing from design and industrialization into construction.