What's the default Python 3 version in the new Ubuntu 20.04? Is it still 3.6 or the latest Python 3.8?
I'm developing a Python program that I later want to run on the new Ubuntu 20.04. I'm unsure if I can use the latest Python 3.8 syntax. I don't have Ubuntu 20.04 installed yet to quickly check it, and I couldn't easily find the answer to this question on Google.
While looking to compile OpenJDK from source, the newest General Availability version (OpenJDK 10.0.1) insists on OpenJDK 9 or 10. JDK 11, however, is not due to be released until September 2018.
However, to my surprise, when I do apt search openjdk the result is:
...
openjdk-11-jdk - OpenJDK Development Kit (JDK)
...
openjdk-8-jdk - OpenJDK Development Kit (JDK)
...
No OpenJDK 9 or 10!
And wait, is that OpenJDK 11? Maybe a Beta release? Nooo....
So I looked at apt show openjdk-11-jdk:
Package: openjdk-11-jdk
Version: 10.0.1+10-3ubuntu1
...
Why has OpenJDK 10 been packaged as openjdk-11-*??
When running uname -a, I get as output
41-Ubuntu SMP Mon Aug 13 17:59:54 UTC 2012 i686 athlon i386 GNU/Linux
Can someone please explain to me why both i386 & i686 ?
What exactly is my PC architecture and what version of Ubuntu am I using (32bit or 64bit)?
How can I downgrade a package to an older version via apt-get?
Other tools are also acceptable but apt-get is preferred.
I installed some version of Ubuntu on my VMware, but I don't know what version exactly it is. How can I find it out?