11.19.3 Can you answer these questions?

11.19.3.1 Calculating $e$ to high precision crashes in 14.2.1

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=313881

With Mathematica 14.1, this simple calculation, run as the first item in a notebook, takes 2.1 seconds. 
 Timing[N[E, 10000000];] 
 
With 14.2.1, the notebook crashes ... 
[crash]
 

asked by CrimsonDark https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=63758 Score of 4

11.19.3.2 Set tab width in code cells and .wl notebooks

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=313895

How can one set the default tab-width for code cells and the default cells in a .wl notebook. At the moment, the default is 4. 
Note: I know this is a basic question, but neither Google, Stack Exchange,... 
[formatting] [notebooks]
 

asked by Gert https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=27889 Score of 1

11.19.3.3 Signing S3 URLs

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=313876

Does anybody know how to get signed URLs in S3? 
Assume you have set up your  ~/.aws/credentials  file correctly. It may look something like this 
... 
[amazon-web-services]
 

asked by Pablo A Perez-Fernandez https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=98761 Score of 1