In the nuspec versioning docs I see
1.0 = 1.0 ≤ x
(,1.0] = x ≤ 1.0
(,1.0) = x < 1.0
[1.0] = x == 1.0
(1.0) = invalid
(1.0,) = 1.0 < x
(1.0,2.0) = 1.
Alternatively, you could run restore on an arbitrary version followed by update as per https://docs.nuget.org/consume/command-line-reference. To ensure the latest you would need to re-run update.
Update packages to latest available versions. This command also updates NuGet.exe itself. Please note that the presence of Packages folder is required to run the Update command. A recommended way is to run NuGet.exe Restore command first before running the Update command.