New Dexcom G7 15 day compatible?

[Mocadon]

I'm just writing here because the new Dexcom G7 15 day sensors are being advertised here in the USA. I was wondering if anyone has tested them with xDrip yet. Apparently, an app update for the Dexcom G7 app is required, and perhaps a Dexcom receiver update. Anyone tried them yet at all? Thoughts?

[jbowler]

I'm certainly interested in that answer too. Swapping from "10 day" to "15 day" is a prescription swap and that pretty much ties us in to 90 days minimum in the US, so if it doesn't work that would mean swapping to the companion app approach (which I assume does work).

Perhaps someone can get a single test G7 from their doc and try it? The doc has to write the prescription so isn't going to be happy doing that unless sure that the 15-day version will be ok.

[Navid200]

I don't live in the US. Therefore, I cannot get one of these myself.
The only way to add support is to have access to one.
But, this doesn't necessarily mean I need to have one myself.

If someone has one of these, and they use Android, there is a non-destructive process I can walk them through to add support if possible.
It will require them to contact me and be open to installing test versions of xDrip while the two of us work together. It could take as little as an hour distributed over a sequence of three back and forth messages.

After that, they can switch back to the official app if they desire.

[Navid200]

It seems to be working fine.
Some tests are still needed before we can release.

[jbowler]

Thank you (all) very much. That will help a lot of us, particularly in the US where the FDA rule changes allow a manufacturer of an "iCGM" to just recertify a new version without testing against the various "ACEPump" models that use the original. So we have the choice of swapping to a somewhat less reliable (on average) 15-day model or sticking with the more reliable but shorter lifetime 10-day model.

[chrisdex]

Does the new G7 handle communication differently from the 10 day G7 ? I was hoping it would be the same and would just work like an older G7.
Does Xdrip cut the 15 day sensor of at 10.5 days - i understand that the difference isnt so much in the sensor but moreso in the software accepting readings for 15 instead of 10 days?

[Navid200]

You can use my Release notes to see what's added in every release:
https://navid200.github.io/xDrip/docs/ReleaseNotes.html

You can look at this to get a better understanding of our update protocol and options:
https://navid200.github.io/xDrip/docs/Updates.html
After you have a look, please feel free to ask if it is not clear or if you have any questions.

[Navid200]

You can install any version of xDrip, from my release notes or directly from releases in this repository, regardless of what update channel you are on.
The update channel you are on will give you a notification when there is a release in that channel newer than the one you are running.
It does not stop you from installing a release from another channel.

Change your update channel to Nightly if you plan to continuously run Nightly channel releases.
You could be on the beta channel and go ahead and install the current latest Nightly.

There is no difference between the stable and beta channels.

[FlyingToto]

oh I see, the channel is really meant to watch for new releases and notify me... got it!
Thanks a lot for the clarification.

[Navid200]

Yes, you are more than welcome.

Also, when you tap on "Check for updated version", currently under the 3-dot menu, it will check under your selected channel.
So, if you are on the beta channel and tap on check for updated versions, it will say "No update in the selected channel" if the version you have is newer than the latest release in the beta channel.

So, as an example, let's say you are running 2025.12.19.
And let's say you are on the beta channel.
The latest release in the beta channel right now is 2025.09.05.
If you check for updates, it will tell you that there are no updates even though there have been many updates in the Nightly channel after 2025.12.19. But, none of them are in your selected, beta, channel.

I admit that this may be confusing.
We have no choice. We need the user community to use the releases and to report any issues to us. At the same time, different users have different tolerance for possible issues.
So, we allow each user to decide if they want to always run the latest and be exposed possibly to occasional issues, or they decide to always run the most stable and miss some new features until they manually add them.

I hope that makes sense.

[FlyingToto]

yes it is a bit complicated but it does make sense... you need early tester to let you know if their feedback is based on the prod, beta version or a specific nightly build. I wouldn't mind testing your next beta release. meanwhile I will ask my doc if he happens to have a g7-15days to spare at my next visit.

[billymild]

I can confirm that the new G7 15 day sensor works on the nightly build of xDrip. I have noticed one issue that it will not backfill data if you lose connection or you left your phone somewhere and come back 30 minutes later. I will open a separate case for this issue.

[jbowler]

I observed the same behaviour with two sample sensors. I've just verified that the G10 (using the same nightly build) does backfill correctly. (I no longer have any G15 sensors and am unlikely to get more.)