Do AWS Lambdas share some state between runs?

Question

The reason I'm asking that is that I have a lambda that doesn't do much except calling an API using python's requests library.
It runs fine every 15 minutes, but after some time(~1 day) it starts to get errors on every run. Every change to the code of lambda resets this cycle.

That made me curious. Do AWS Lambdas share some state between runs?

Answer 1

As jarmod answered in the comments. Lambdas do share some state between runs.
Here there is an article on the topic.