No, updating your resume after applying for a job will not automatically update the version you’ve already submitted. Each application you send is a separate instance, and employers will only see the resume you submitted at that time. If you make significant updates to your resume, it’s important to manually update it in your job applications. You can do this by contacting the employer directly or reapplying to the position with the updated resume. For future applications, ensure that your resume is current and reflects your most recent achievements and experiences before submission. This proactive approach will help present the best version of your qualifications to potential employers.