Sprint just updated its support docs for the Samsung Conquer 4G with details of a new OTA update set to begin rolling out at any moment. It's a rather small and nondescript update that just brings a couple of fixes and enhancements:
4G Modem Update - not customer impacting
Lock screen changes - swipe in any direction to unlock
Like I said, it's minor. The update should begin rolling out today or tomorrow and will complete its rollout process within ten days. You can see if the update is available on your device by heading into Settings > About phone > System updates.