<human>: Give me a shortened version of the text

I was recently reading [this] article about how China's communist party is hosting a once in a decade, week-long congressional meeting to choose the next set of leaders to take the reins, as it were.

It made me realise that I actually understand very little about Chinese politics, it's government or how it works. Which considering that China is a major international political and economic power, my ignorance on the topic shames me a bit. I had considered submitting to ELI5 but I think here is more appropriate.

So we all know China is technically communist, how do they select the next leaders? If everyone is "equal" does it come down to personal experience, i.e. who would be "best" for certain jobs, or is it more "who you know"? Why do they need to change leadership every ten years? Can't they just carry on with the status quo?How will this change in leadership affect their various domestic and foreign policies?

Any answers from experts or those well informed on Chinese politics would be much appreciated.
<bot>: China is currently in the process of changing government. Why do they do this and how is it achieved? What does it mean for the rest of the world?