After installing the beta, I could no longer login to SalesForce. I tried to delete and recreate the connection with no success. This also impacted my 4.3 toad as well. I was slow to report this as I was concerned this was my connection at work or some other changes. I got access to a new PC this week and I started off by installing 4.3. I imported all my connections and I can again logon to Salesforce. I am afraid to install the beta until the next release as I need access to Salesforce daily.
Please, can others verify?