Update

And, “You, Lord, in the beginning, laid the foundation of the earth. The heavens are the works of your hands. They will perish, but you continue. They all will grow old like a garment does. You will roll them up like a mantle, and they will be changed; but you are the same. Your years will not fail.”
Hebrews 1:10-12 (WEB)

Ubuntu should be updated often; to squash bugs, keep up with new features, plug security holes… Updates to Snaps happen automatically. All other update settings (security, feature, software, etc.) are managed in Menu > Settings > Software & Updates

Update from the command-line
Open a Terminal [Ctrl]+[Alt]+[T] and type:

sudo apt update
will update apt’s knowledge about what’s changed in the repositories

apt list --upgradable
will show what’s available to be upgraded

sudo apt upgrade
will upgrade everything available to be upgraded – after confirmation

sudo apt upgrade -y
will upgrade everything available to be upgraded – without confirmation

sudo apt update && sudo apt upgrade
will combine two commands; updating apt’s knowledge about what’s changed in the repositories and then upgrading everything available to be upgraded – after confirmation

sudo apt update && sudo apt upgrade -y
will combine two commands; updating apt’s knowledge about what’s changed in the repositories and then upgrading everything available to be upgraded – without confirmation

Update with Software
Go to Menu > Settings > Software

Update with Software Updater
Go to Menu > Settings > Software Updater

If updated software is available, install now!

Update with Synaptic Package Manager
Go to Menu > System > Synaptic Package Manager

Click the [Reload] button

Click the [Mark All Upgrades] button

Click the [Mark] button

Click the [Apply] button

Update The SWORD Project modules (Biblical Texts, Commentaries, Dictionaries, etc.) used by both Xiphos and Bible Desktop

Go to Menu > Education > Xiphos Bible Guide and in Xiphos, go to Edit > Module Manager

Under Module Sources, click Choose and then select the first Remote Module Source from the drop-down menu; CrossWire. Note, the same instructions below apply to other remote sources / repositories, Xiphos and eBible, and any others you add.