X posts discuss Ethereum and cryptocurrency market trends from September 18-19, 2026. Topics include Vangrid's Physical AI spatial data infrastructure using Ethereum, institutional Bitcoin and Ethereum purchases by BlackRock and other ETFs totaling hundreds of millions of dollars, and technical analysis of the EIGEN token's price movements and support levels.
CmdStan 2.40.0 has been released with new 1-D integration functions, matrix reshaping capabilities, bug fixes, and updates to dependencies including Eigen 5.0.1. The release was accompanied by updates to Stan Math, core Stan, and Stanc3, with contributions acknowledged from the community and support from sponsors like the Flatiron Institute.