Officialy since 2011 it's not legaly allowed to climb at Sagres Clifs. But since the park rangers are only 2 to square up all the National Park area, probably there would be no problems.
Some of the bolts are getting rusty and migth pop out, so always be carefull when coming down the routes (specially in Armaรงรฃo Nova, Foz dos Fornos and Corgas). Not adviced to climb in Parede Grande of Armaรงรฃo Nova (but belay points have new bolts).
Recently, almost all the routes in Parede Pequena at Armaรงรฃo Nova, Foz dos Fornos and in Corgas sector were rebolted with titanium glue in's (check out and support the portuguese project "Titan" at http://climbingpt.com/titan-project/the-problem/).