Still okay to use Old Adsense Code?

Is it still okay to use the old adsense code. I haven't updated my codes yet.. All my sites are still using the old ones..

Do I have to change them to the new ones or I can still use them?

 

yes you can use old codes thing is new method will give the remotely changing look without going to make changes in sites

 

I am still using the old code in all my sites.

 

Yes, you can still use it with no problem at all.

 

Hmm... by reading I learned. Thanks.

 

I'm still running the old code ads as well. But maybe it's a good idea to start updating the code.
The new features are not that bad.

 

No problem with old code.