Google reminded us that the new upgraded URLs will be happening on July 1st.

Meaning, if you are still managing the old destination URLs with your AdWords ads, you no longer will be able to after July 1st.

Google said:

Destination URLs can no longer be edited or created. Any new URLs will need to be created using the new Upgraded URL fields.
Destination URLs will be automatically moved to the new final URL field for any ad groups in your account that do not contain cross-domain redirect URLs.2 In your AdWords account, you will receive an alert informing you of any remaining ad groups that were not upgraded.
Any ads with destination URLs that have not been updated to Upgraded URLs will stop serving in a few months. We’ll let you know 30 days before your ads stop serving by email and with an alert in your account.

Here are some FAQs from Google:

See answers to some of the most commonly asked questions about the upgrade below.

Q: Do I need to upgrade if I don’t use URL tracking, or if I only use auto-tagging?

Q: Which URL types will not automatically be upgraded and eventually stop serving?

Q: How do I upgrade my cross-domain URLs?

Q: Will my ad stats be reset during the upgrade?

Q: I use dynamic tracking in my URLs, what do I need to do?

For additional details, please see the FAQ on our upgrade guide.

Forum discussion at Google+.