Android API 34 and Android keystore

[Klaus major-k]

Hi all,

two questions:
1. In my "Android Studio" there are three options for SDK Tools for API level 34:
34
34-ext8
34-ext12

What should I install? 34 or all of them?

2. I need to update my Android freeware app to above mentioned API.
I had uploaded the first version to Google Play with a self signed key,
made with Android Studio, Google was content.

As far as I understood this, I need to use this key for every upload of that app.
And Google then takes care of (final) signing etc.

However I lost that keystore file during a hd crash a couple of months ago.
What should/can I do?

Any advice much appreciated, thank you!


Best

Klaus
--
Klaus Major
https://www.major-k.de
https://www.major-k.de/bass
klaus at major-k.de