As proposed in https://github.com/ipfs-shipyard/ipfs-companion/issues/662#issuecomment-658764395, send user to https://github.com/ipfs/ipfs-companion/releases/latest upon updating version of Companion.
I think /latest will always link to the stable version, to make it work for Beta channel as well we should send user to version from manifest:
`https://github.com/ipfs-shipyard/ipfs-companion/releases/tag/v${browser.runtime.getManifest().version}`
https://github.com/ipfs-shipyard/ipfs-companion/pull/913 will close this.