Learn Hardcore German: Ich aktualisiere die Software.

In a German main clause the finite verb must occupy the V2 position. That means exactly one element (subject, adverbial, object, etc.) can come before the verb. Here Ich is first, so aktualisiere follows immediately in second position.

Why is the article die used with Software, and why doesn't it change here?

Software is a feminine noun (die Software). In the accusative case (direct object), the feminine article remains die (nominative and accusative look the same for feminine). That’s why die Software stays die Software.

Is aktualisieren a separable verb?

No. aktualisieren ends in -ieren, a suffix that always forms inseparable verbs in German. You never split it; the whole verb stays together (e.g. ich aktualisiere, not ich stelle ... zur).

How do you conjugate aktualisieren in the present tense?

It’s a regular (weak) verb. Simply remove -en and add the usual endings:

ich aktualisiere
du aktualisierst
er/sie/es aktualisiert
wir aktualisieren
ihr aktualisiert
sie/Sie aktualisieren

How would you say “I updated the software” in German?

Use the perfect tense with haben and the past participle aktualisiert:

Ich habe die Software aktualisiert.

Can I use the English loanword updaten instead of aktualisieren?

Yes, but updaten is informal and colloquial. You’ll often hear Ich update die Software in conversation, but in formal or technical contexts aktualisieren is preferred.

How do you express the idea “I am updating the software” (progressive) in German?

German doesn’t have a separate progressive form. You normally use the simple present. To stress that the action is ongoing, insert gerade:

Ich aktualisiere gerade die Software.

Why is Software capitalized?

All German nouns are capitalized, regardless of their origin or sentence position. Since Software is a noun, it always starts with a capital letter.