With Android 5.0 is realized, the Google has done something for a long time waiting developers – Developer Preview a few months before the final release. With the advent of Android M, the situation has improved, because the developers were able to receive OTA-Update Developer Preview. But, unfortunately, things did not go as smoothly as expected.
Do not wait for the developers and third assembly AM Google announced that the Developer Preview 3 also delayed. Said it will «almost final version,» so they want the system to be as it is possible more stable before the release of the final build.
The search giant also advises to remain calm and follow the news on the issue in the community of Android-developers for Google+, where M 3 and will appear in the near future.