List of Ubuntu releases with corresponding Linux kernel version

 

This is the list of Ubuntu versions with their corresponding Kernel version:

Version / code name	Kernel
22.04 Jammy Jellyfish	5.15
21.10 Impish Indri	5.13
21.04 Hirsute Hippo	5.11
20.10 Groovy Gorilla	5.8
20.04 Focal Fossa	5.4
19.10 Eoan Ermine	5.3
19.04 Disco Dingo	5
18.10 Cosmic Cuttlefish	4.18
18.04 Bionic Beaver	4.15
17.10 Artful Aardvark	4.13
17.04 Zesty Zapus	4.1
16.10 Yakkety Yak	4.8
16.04 Xenial Xerus	4.4
15.10 Wily Werewolf	4.2
15.04 Vivid Vervet	3.19
14.10 Utopic Unicorn	3.16
14.04 Trusty Tahr	3.13
13.10 Saucy Salamander	3.11
13.04 Raring Ringtail	3.8
12.10 Quantal Quetzal	3.5
12.04 Precise Pangolin	3.2+
11.10 Oneiric Ocelot	3.0
11.04 Natty Narwhal	2.6.38
10.10 Maverick Meerkat	2.6.35
10.04 Lucid Lynx	2.6.32
09.10 Karmic Koala	2.6.31
09.04 Jaunty Jackalope	2.6.28
08.10 Intrepid Ibex	2.6.27
08.04 Hardy Heron	2.6.24
07.10 Gutsy Gibbon	2.6.22
07.04 Feisty Fawn	2.6.20
06.10 Edgy Eft	2.6.17
06.06 Dapper Drake	2.6.15
05.10 Breezy Badger	2.6.12
05.04 Hoary Hedgehog	2.6.10
04.10 Warty Warthog	2.6.8

Ubuntu: How to install an old Firefox version

If you want to install an old version of Firefox, you just have to follow these steps:

In this case, I had Firefox 4.5.0 and now I want to install Firefox 47.0.1


First, open your terminal

1. Download firefox 47.0.1
   
   wget https://ftp.mozilla.org/pub/firefox/releases/47.0.1/linux-x86_64/en-US/firefox-47.0.1.tar.bz2
2. Unzip Firefox
   
   tar -xjvf firefox-47.0.1.tar.bz2
3. We remove the old version
   
   sudo rm -rf /opt/firefox*
4. we move the unzip firefox 47.0.1 to the firefox folder
   
   sudo mv firefox /opt/firefox
5. create symbolic link
   
   sudo ln -sf /opt/firefox/firefox /usr/bin/firefox