Can I retrieve the version of ICU4X, Unicode, CLDR using C or C++ FFI?

[jlfaucher]

Hello

Can I retrieve the ICU4X version using C or C++ FFI?
and the Unicode version, the CLDR version?

It would be good to have the Unicode & CLDR version in the release notes.

[Manishearth]

Currently this is not possible in the API.

[jlfaucher]

Ok, thanks.

[sffc]

You can access the CLDR version using deprecated APIs in the icu_testdata crate.

For the ICU4X version, currently you need to look at the Cargo.lock file. You can do this in a build.rs script that you write.

This has now been requested multiple times so I think we should probably support it.

[sffc]

To close the loop on this, the versions are now available in the Cargo.toml files which can be queried at build time using the cargo metadata tool.

[sffc]

See #4399

This will be shipped in ICU4X 1.5