Submitted by stevenmaifert on April 29, 2013
This morning I received an email from Tesla with the same subject. I don't know if it went out to all owners or just folks like me who are still on 4.1 because they didn't want to lose the sleep mode. Anyway, there was a paragraph about a future update that I thought might be of interest to the forum at large:
"Our ability to maintain seamless functionality and introduce new features is contingent on customers upgrading to the latest software. For example, an upcoming change to Google voice recognition technology on April 30, 2013 will disrupt the Voice Command feature in Model S software versions 4.2 and earlier. To ensure the best ownership experience without interruption to features, Tesla recommends you upgrade your software."