INSTALLING UPDATE ON NOKIA N95 8GB IN 2016?

I am buyiing an nokia n95 8gb now in 2016 ¿how can I update it? Is it possible to get the update from another webpage and install it on the phone?
I am buying the phone just for fun and for using it for just calls.

Is just that I want to have it up to date at least.

thank you.

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