to duplicate auxiliaries or not? when?

[vgv8]

I am in doubt

How should I write correctly:

• 1)"We have modified our plugin and uploaded its new version 2.0"

or

• 2)"We have modified our plugin and have(?) uploaded its new version 2.0"

With one common "have" or with two?
The same questions about, for example, other auxiliary verbs like "did", etc.

I searched internet, tried multiple spell checkers and it seems both variants are correct.
I would say, that repeating (duplicating) "have" is more ubiquitous both in (internet) texts and in (should I omit second "in" here?) grammar guides. It looks like "have" is repeated (duplicated) everywhere in similar sentences though I always thought that one common auxiliary verb "have" would have been sufficient.

I searched through many grammar guides and tutorials and could not find any explanations about this.
Where is it written?

Which guide/tutorial do you advise for correcting (technical) copywriting?

Update:
BTW, would not it be better to write:

• 3)"We have modified and have(?) uploaded new version 2.0 of our plugin"

instead of the 1) and 2) variants

Which of the forums are more suitable for this question?
Please fell free to correct any of the phrases in my post!

[5jj]

1)"We have modified our KeyCAPTCHA plugin and uploaded its new version 2.0".
2)"We have modified our KeyCAPTCHA plugin and have(?) uploaded its new version 2.0.
I always thought that one common auxiliary verb "have" would have been sufficient.
3)"We have modified and have(?) uploaded the new version 2.0 of our KeyCAPTCHA plugin.No. You modified your version and then uploaded the new version. At least, that's what you said in #1 and #2. #3 suggests that you modified the new version and then uploaded it.

Which of the forums are more suitable for this question? This one is fine.

5

[Barb_D]

As 5JJ says, both are okay, so your rule will be "which is clearer." If you have a long verb phrase, you may want to repeat the aux. verb to remind the reader which tense you're using. If nothing is gained by repeating it, leave it out.