We recently looked at
some of the changes and new features arriving with the upcoming
version 1.7 release of the Julia programming language.
The package system provided by the language makes it easier to
explore new language versions, while still preserving
multiple versions of various parts of the ecosystem. This flexible system
takes care of dependency management, both
for writing exploratory code in the REPL and for
developing projects or libraries.

Source: LWN.net – [$] Digging into Julia’s package system