CAIRO — Egypt’s military rulers announced an interim constitution Wednesday and said presidential elections would be held by November, both important steps in their plan for getting out of the daily business of governing the country.

Maj. General Mamdouh Shaheen, a member of the Supreme Council of the Armed Forces, said the 18-member council would hand over legislative powers after the parliamentary election in September. Executive powers would be transferred after the presidential election.

A new president would bring “stability and development,” he said, using the two military watchwords about what Egypt needs.

The new constitution replaces the one suspended when President Hosni Mubarak stepped down on Feb. 11. Much of it remains the same, with the addition of about eight amendments approved by voters in a March 19 referendum, including limiting the president to two eight-year terms. The issuance of the new governing principles had been expected since that vote.