There isn't a new SDK (it's the part you run on your PC or mac), but an update to the VM (virtual machine) that's part of the firmware on the watch. With a micro change to the VM (the last part of the version), it's minor bug fixes and nothing new. (the FW changelog will typically just say "various fixes and improvements for CIQ" or something like that and that's about as specific as it gets.)
The best If you are waiting for something to be fixed in the VM, is just see if it is fixed. When they are building a new version of the FW to fix something that's not CIQ related, the platform folks might just pull in the latest version of the VM when doing so, and not for any specific VM fixes, for example.
For the items you are asking about, The api doc says PersistedContent is only devices with a 2.x.x VM, and the f3 won't get a 2.x VM.
