The BlackBerry PlayBook has today received an OS update to v18.104.22.1688. While not a huge update from the previous version, this release does provide a hotfix for those who experienced a loss of local contacts and calendars. While the fix won't bring back what was lost, it has been implemented to prevent the same thing from happening in the future. Of course, this update is for the WiFi PlayBook only, as the 4G LTE BlackBerry PlayBook updates need carrier approval. If you're not seeing the prompt for the update yet, sit tight as sometimes they take a bit to roll out.