Why? Is there a specific dreason?
This massively depends on your operating system.
NobbZ
neneboe
If you’re using Ubuntu like the OP, you can use apt to install a specific version of Elixir in the same way you’d do for any other package: apt-get install PACKAGE=VERSION.
The non-obvious part is that the Elixir apt packages append a “-1” to all their versions, so if you wanted 1.8.1, you’d have to run apt-get install elixir=1.8.1-1. Why this appendage exists, I’m not sure.
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elixir-user
shanesveller
It’s a practice that’s fairly common to APT, Yum, etc. It’s there to differentiate between “the version of the software being packaged” and “the iterations/version of the packaging approach itself”. For example, if the build pipeline has changed, or a previous iteration accidentally included something it shouldn’t or omitted something it should, the version of the software being packaged hasn’t changed but the artifact itself will be different. It’s useful to be able to indicate which specific historical contents you have, in shorthand, without relying directly on checksums or another content-addressable approach.
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