The 6.1.0.Alpha is a previous version of EAP6.1.0.Final. It is not ensured that the fixes can be applied to it! You will run into dangerous issues because the binaries are different for some modules. The final include bugfixes, module upgrades and enhancement which are detected during the Alpha/Beta phases.
The difference is that the Alpha bits are free for use, the Final is only available as a 0$ development subscription or you need to have a subscription to run in UAT or production. See former discussion in this EAP forum.
The Alpha bits are handled (mostly) similar to any community version, there are no bugfixes or security updates. You need to use the current community version or you might fix it yourself.