Hi. How are you? I am a user in Spanish. I’m new here. In my language there is little information about application development, so I came to see if I can help please.
A few weeks ago I received an email with the following message admob
AdMob is committed to providing you the most effective monetization solutions. As we innovate, it’s important that we leverage the latest technologies to bolster our platform. As part of this movement, we are deprecating versions 6.4.1 and lower of the Android GoogleMobile Ads SDK on September 15th, 2016.
In order to ensure that your ads continue to serve after September 15th, 2016, please upgrade to Google Mobile Ads SDK 7.0.0 or higher.
The newer Google Mobile Ads SDKs have many more benefits for you:Seamless auto-updates. Changes to the Google Mobile Ads SDK for Android get pushed seamlessly to users through Google Play services, so you can focus your time where it matters
[ul]
[li]You won’t need to spend time updating your apps with the latest versions of the ads SDK each time it changes
[/li]> [li]New features and bug fixes will also reach users through auto-updates
[/li]> [/ul]Better user experiences. Users will find it easier to manage updating their apps as some improvements will automatically be received in the background.
The case is. My application is created with Google Play services version
<Integer name = “google_play_services_version”> 5077000 </ integer> Date 6/25/2014
My big question was. my application will be affected by the change? In the message it says that using Google play services will not have problems, but my question was because I use is an old version
I’d love to update my application, but unfortunately lost the key and I can not launch new updates 
Sorry for my bad English, I’m using google translator. Thanks!