Multi-version management

[onbjerg]

I think it might be valuable longer term to add multi-version mgmt like rustup, especially for forks. It should be possible to have multiple versions installed, uninstalling specific versions, and switching between them.

[DaniPopes]

Believe it or not this is already supported in upstream bash foundryup

[onbjerg]

how?

[DaniPopes]

-u, --use       Use a specific installed version from built binaries

and -i will first check if its already installed

[onbjerg]

This feature does not seem to be that well implemented, nightly is overwritten by Tempo for example:

~/P/f/foundry $ foundryup -l                      (onbjerg/tempo-tx "feat(primitives): tempo…" s f)
foundryup: nightly
foundryup: - forge 1.5.0-nightly-tempo (925efe8cde 2025-12-16T11:29:23.977684000Z)
foundryup: - cast 1.5.0-nightly-tempo (925efe8cde 2025-12-16T11:29:23.977684000Z)
foundryup: - anvil 1.5.0-nightly (4405de044f 2025-12-09T10:04:26.539985000Z)
foundryup: - chisel 1.5.0-nightly (4405de044f 2025-12-09T10:04:26.539985000Z)

foundryup: stable
foundryup: - forge 1.5.0-stable (1c57854462 2025-11-26T09:16:58.269730000Z)
foundryup: - cast 1.5.0-stable (1c57854462 2025-11-26T09:16:58.269730000Z)
foundryup: - anvil 1.5.0-stable (1c57854462 2025-11-26T09:16:58.269730000Z)
foundryup: - chisel 1.5.0-stable (1c57854462 2025-11-26T09:16:58.269730000Z)

foundryup: v1.4.0-rc2
foundryup: - forge 1.4.0-v1.4.0-rc2 (0fa4aef9e1 2025-10-03T13:54:17.029194000Z)
foundryup: - cast 1.4.0-v1.4.0-rc2 (0fa4aef9e1 2025-10-03T13:54:17.029194000Z)
foundryup: - anvil 1.4.0-v1.4.0-rc2 (0fa4aef9e1 2025-10-03T13:54:17.029194000Z)
foundryup: - chisel 1.4.0-v1.4.0-rc2 (0fa4aef9e1 2025-10-03T13:54:17.029194000Z)