How to update JuMP?

[odow]

You can find installation instructions here:

JuMP 0.19-beta released (JuMP/MathOptInterface)

Just in time for the holidays, we’re happy to announce that JuMP 0.19-beta is now released. We’re wrapping up the big transition to MathOptInterface (MOI) from MathProgBase. There are no more breaking changes planned for the 0.19 release and a few blockers remain. See NEWS.md for a list of breaking changes and new features since JuMP 0.18. See the docs for a list of solvers that are compatible and not yet compatible with JuMP/MathOptInterface. JuMP 0.19-beta runs on Julia 0.7 or later. To ins…

tl;dr: To get the latest beta, run

] free JuMP
] add JuMP#v0.19-beta2

To get the bleeding-edge

] free JuMP
] add JuMP#master