We are working with solidworks 2019 SP2.
It seems that servicepack 3,4 and 5 are also released.
Do we need to install them all or does SP5 contain all previous servicepacks?
I would avoid sp 4. Two bugs were introduced with that version that caused me to uninstall it and go back to sp 3. It's working fine for me, and I haven't heard whether or not those bugs were fixed with sp 5, so I intend to stay with 3.
It boils down to I can't give you a definite answer on which to go to, other than you certainly don't need to install all of them. If sp 2 is working fine then you can stay with it, but if you choose to update to a later service pack you can go straight to it without installing whichever versions are between the two.
And the good news is that as long as you are staying with 2019 service packs, you can always go forward or backwards without too much issue. You could try SP5, and if it doesn't work, roll back to SP3.
All service packs contain everything needed. So, yes, you can go from SP2.0 to 5.0 directly.
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