To improve what was old or outdated. "The company upgraded their personnel"
3.
Give a promotion to or assign to a higher position. Synonyms:advance, elevate, kick upstairs, promote, raise."Women tend not to advance in the major law firms" , "I got promoted after many years of hard work"
... exports. The country is not self-sufficient in food production; rice, the main staple, accounts for the bulk of imports. The government - which is hampered by internal political disputes - is struggling to upgrade education and technical training, privatize commercial and industrial enterprises, improve health services, diversify exports, promote tourism, and reduce the high population growth rate. Increased foreign support is essential if the goal of 4% annual GDP growth is to be met. ... — The 2007 CIA World Factbook • United States
... right, and soon the long line of freight cars hove into sight around a bend and on an upgrade. Far in the distance they beheld Caven and Malone scooting for the train ... — Joe The Hotel Boy • Horatio Alger Jr.