system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] How long does it take a droid to become obsolete?

So I just bought a new TV. Not because I really needed one but because it was on sale and TV's have advanced so much that it felt like a needed an upgrade. My last TV i bought because my old TV broke. In the last 10 years I have purchased at least three TV's.        

Meanwhile R2-D2 and C3PO have been in commission and doing important work for what has to be close to 50-60 years. Do they get updates? Are new and more advanced droids not being manufactured? Let's say I have become attached to my old droid, can I have it's personality uploaded to a new model?
gpt
Regarding end-of-life for droids, it tends to have less to do with becoming obsolete and more to physically wearing out. For the most part, no one is performing big revolutions in droid design, so there isn't a lot of incentive to replace a droid in good working order. Of course, many droids (particularly labor units, astromechs, and combat models) get burned out or smashed up, and eventually it starts becoming hard enough to find replacement parts that the droid gets effectively totalled and needs replaced.

As for "uploading" your droid, it's not often seen but it's feasible; C3PO once got an involuntary 'brain transplant's by having his head tack-welded to a battle droid body, and IG-88 tried to instigate an anti-organic genocide by uploading one of his brains onto the computer core of DS2. Most don't bother, and with lower level droid brains there's basically no point, but if you've got an old, reasonably sophisticated droid that you've grown fond of it could be an option.