How to Install a Specific Version of a Package in Julia
Guide 1
(@v1.6) pkg> status JuMP
Status `C:\Users\rmsms\.julia\environments\v1.6\Project.toml`
[4076af6c] JuMP v0.20.0
By pressing the ] key in the REPL, you enter the package mode. For example, if you want to upgrade a package version from v0.20.0 to v0.21, you can do so by appending @x.yy to the package as follows.
(@v1.6) pkg> add JuMP@0.21
Resolving package versions...
...
(@v1.6) pkg> status JuMP
Status `C:\Users\rmsms\.julia\environments\v1.6\Project.toml`
[4076af6c] JuMP v0.21.4
If you check the version again, you can verify that the package version has been successfully updated.
Environment
- OS: Windows
- julia: v1.6.2