What games currently support the new gamertag system?

Xbox is currently changing the Gamertag system.

During that transition period, you might see your old gamertag as well as your new one.

Current and older games that don't know of the new Gamertag system will still show your old Gamertag. And it can take until 2020 until the full transition to the new Gamertag system works in all games.

So currently what you see is not an error. It's just how Gamertags are handled during this transition to the new Gamertag system.

"On Xbox games that don't support the new gamertag system"

This is what I'm talking about. We're two years in and no games support the new gamertag system.
Genuinely infuriating.

The new gamertag system is still updating and not all games currently support the new gamertags.

Information on the rollout can be found at
https://support.xbox.com/my-account/manage-gamertag-and-profile/gamertag-updates-faq

ok thank you for your message, the odd thing is when i did change my other account his gamertag it did work normal.

no other gamertag under it..

it only happend with this one, thats why i found it a bit strange.

When i login on the xbox website with this gamertag what i changed it shows me the old gt still, but on my second account where i also changed the gamertag, when i login it shows up with the new gamertag.

regards

Xbox is currently changing the Gamertag system.

During that transition period, you might see your old gamertag as well as your new one.

Current and older games that don't know of the new Gamertag system will still show your old Gamertag. And it can take until 2020 until the full transition to the new Gamertag system works in all games.

So currently what you see is not an error. It's just how Gamertags are handled during this transition to the new Gamertag system.

I thought games that don't support the new gamertag system use the "Xbox games that don't support the new gamertag system* and all Xbox 360 experiences" gamertag? So are you saying a game that doesn't support the new gamertag system can still use the "Xbox one console and Xbox apps" gamertag, but not support the suffix styling?