Updating resume with promotions
Promotions and advancement are regarded as positives, they show you're not just drifting along, that you rise to challenges and that you seek to better yourself.
It becomes a bit grey if the changes are sideways (Or even worse, downwards), but ultimately, you should treat every single role / promotion as a new job and list it as such.
A quick way to update your resume without doing any formatting is to simply let your professional network know about your new job.
Junior Banana was help with XXX, Banana was be primary / lead contact for XXX, Senior was run / get new clients for XXX.
Promotion for each title is kind of expected on an annual basis within the industry.
I will tell you that I've trashe- err, filed CVs where a candidate has overvalued their real position -- eg.
claimed to be a Senior Orange, after one year of experience, but never showed any indication of mentoring a single Junior Orange, or anything else that I would consider a Senior responsibility. In the end, you have to ask yourself what message you want to convey, then figure out how to convey it most efficiently. I would go so far as to say that people thinking you've done one role for [x] years is absolutely terrible if that's not the case.“Additionally, you can update your job title in the “Work and Experience” section, which is located in the “About” section of your profile.