Should I be concerned that the docs are talking about Logbook 0.4, but the last release available to download is 0.3, 1.5 years ago? It looks pleasant to use.

Should I be concerned that the docs are talking about Logbook 0.4, but the last release available to download is 0.3, 1.5 years ago? It looks pleasant to use. But I wonder how bug-free it is. The docs allude to it being built very quickly.