Some time ago, it was possible to get the selected account using sync methods on web3 0.2. https://github.com/MetaMask/faq/blob/master/DEVELOPERS.md
It always worked on our DAPP. But on Nov 8th in the middle of afternoon it changed. I was testing my dapp locally (9545) and I noticed that I could not retrieve my accounts anymore. I was using a version of Metamask download before Nov 2th when the error happened.
I noticed that it was still possible to retrieve accounts when using the asyncronous methods. But sync is not working anymore. Is it the case? Does anyone knows why it happened? Is it related to that Metamask change of Nov 2th?
I was using web3-injected from metamask.