Android Question b4xlib manifest version numbers are strange

I'm creating a b4xlib and try to set this kind of version in the manifest.txt:


So, basically, during the automated build process of the b4xlib a timestamp is added to the version number.

This is not appreciated by B4A:


(A somewhat vague error message, by the way - took some time figuring out what the problem was.)


While investigating this I found that the version field only allows for <number><dot><number, two figures max>. To make it even more strange, the last number was rounded:

This manifest...

...shows as this:


Another example, as I tried to understand the limitations:

Shows as:


Does anyone know what the actual specification for the Version field is?