The new rules for Social Security were passed in Section 831 of the Bipartisan Budget Act of 2015. At that point Congress effectively eradicated the File-and-Suspend and Restricted Application claiming strategies for optimizing Social Security benefits. Individuals under age 62 in 2015 (born January 2, 1954 or later) are not eligible for the File-and-Suspend and Restricted Application claiming strategies.
The new rules do not take effect immediately. Also, the new rules do not impact those that already receive benefits. For example, I have a friend who receives Social Security benefits on a restricted application, her benefits will not change. Individuals who are at full retirement age (FRA) or will reach FRA by April 29, 2016 will have an opportunity to File-and-Suspend before the shutdown. (If you are eligible, you must file by April 29, 2016 or lose your benefits forever.) Moreover, anyone who was born in 1953 or earlier (or January 1, 1954) will still be able to apply for benefits on a Restricted Application for spousal (or divorced ex-spousal) benefits, even if the claimant does not file until years from today.