Some 3,660 alumni and guests braved blustery weather that turned to sunshine to attend this year’s Tech Reunions June 6–9. They took part in 163 activities, from Toast to Tech, which drew about 700 people for music and dancing Saturday night, to the Technology Day Luncheon, where class leaders announced a total of $125,792,105 in gifts. The 50th-reunion class’s 69 percent participation rate was bested only by the Class of 2013’s record-setting 83 percent.