Hi jo lwebuga,
4.10.1 is the current version, however, there are many updates available that are not included in the installation file. This means even if you install version 4.10.1, you do not have the most current version.
If you are interested how to update your installation, you may be interested in this thread:
http://www.weberp.org/forum/showthread.php?tid=916
This is adressing a Linux installation, but I believe a similar approach would apply also for a Windows installation.