Which Versions Of Corda Are Supported?

[opticyclic]

Its not clear which versions of Corda are supported
The README says:

buildscript {
    ext {
        corda_release_version = '4.3-RC01'
        accounts_release_version = '1.0-RC04'
        accounts_release_group = 'com.r3.corda.lib.accounts'
        confidential_id_release_group = "com.r3.corda.lib.ci"
        confidential_id_release_version = "1.0-RC03"
    }
}

and there doesn't appear to have been a release for about a year:
https://ci-artifactory.corda.r3cev.com/artifactory/corda-lib/com/r3/corda/lib/accounts/accounts-contracts/

The README also links to the tokens template:
https://github.com/corda/cordapp-template-kotlin/blob/token-template/build.gradle

This has a slightly different buildscript section

buildscript {
    ext {
        corda_release_group = 'net.corda'
        corda_release_version = '4.3'
        tokens_release_group = 'com.r3.corda.lib.tokens'
        tokens_release_version = '1.2'
        accounts_release_group = 'com.r3.corda.lib.accounts'
        accounts_release_version = '1.0'

However, still corda 4.3 and accounts 1.0.

Does this mean that we can only use Corda 4.3?

If newer versions are supported, please update the README to list all the supported versions and update the samples to include newer versions as well.