Representatives from major Bitcoin mining pools and companies sign the "Hong Kong Agreement" at a roundtable meeting, pledging to implement Segregated Witness (SegWit) and work toward a hard fork to increase the base block size to 2 MB. The agreement was an attempt to resolve the contentious block size debate through compromise. However, the agreement quickly fell apart as different factions disagreed on the timeline and implementation details. The failure of the Hong Kong Consensus demonstrated that Bitcoin's decentralized governance cannot be captured by backroom deals -- a feature, not a bug.
Bitcoin Roundtable Consensus Statement