I just gone through these article right now https://www.upwork.com/blog/2019/04/upwork-new-android-app/
So im using Old one , for getting new features sould i update my apps or reinstall my app ? so i will get new options right i mean new feautures ?
If you only use Upwork as a freelancer, you can download the new "Upwork for Freelancers" app and delete the old app.The new app with the white background would contain the new features. Let me know if you need further guidance.