idea update

Open the idea and find that there is a new update. Unfortunately, it cannot be updated in the idea, and a connection error is reported. Solution
1. Download the updated jar, mine is mac: IU-171.4249.39-171.4424.56-patch-mac .jar
2.cp ./IU-171.4249.39-171.4424.56-patch-mac.jar /Applications/IntelliJ IDEA.app/Contents
3.java -classpath IU-171.4249.39-171.4424.56-patch-mac. jar: ./lib/log4j.jar com.intellij.updater.Runner install .