I was playing around with the Dolphin 7.0.9 to 7.1.0 upgrade .zip file recently, which you can read about here:
And, download in Step 4 from the link above.
After downloading the .zip file I happened to notice that it contains a .htaccess file in the root/main part. This will mean that the main .htaccess file in the .zip file will overwrite the .htaccess file that you are currently using (http://www.yoursite.com/.htaccess).
This wouldn't be a problem if you haven't added any custom rules to your .htaccess file, but if you have you will want to make sure you have downloaded a backup before upgrading.
If you have manually added any custom .htaccess rules, or if you used your hosting control panel such as cPanel to add something like deny an ip address, or other you will want to double-check it beforehand.
You may need to compare, add, and update any differences you have in your current .htacces to the one contained in the upgrade .zip file.
I haven't thoroughly check to see if there are any differences between the Dolphin 7.0.9 .htaccess file and the 7.1.0 .htaccess file or not. If there are none then the .htaccess file really shouldn't be included in the upgrade/patch.
Anyway that is one thing I noticed.
If you read through the upgrade instructions you should be aware that Boonex tells you in Step 2 that you need to uninstall the "Wall" and "Spy" modules before upgrading. This is kind of a bummer because you will lose all data in those modules.