Upgrading Revit Files


I have a question to the community, I’m doing a research about upgrading Revit files.

I need to upgrade several project files from Revit2016 to Revit2018.

I gather several opinions about upgrading version to version, but then I have to upgrade twice (2016 to 2017 and 2017 to 2018). It would be faster directly from 2016 to 2018. I assume that any of the options could originate some issues and even lost some info. Then, which option should be considered the best one?

The only possibility Revit offers is one by one with eTransmit. I read some other topics about Dynamo workflows, and I know there is also some plugins. Which method should I use?

What would be the best option?

Thanks in advance!!

Dynamo will definitely be your best bet, being able to run the process in the background while continuing your day is extremely helpful. And there’s a ton of topics here about upgrading workflows!
A few things to keep in mind when upgrading:

  1. You should save the models to a different location (desktop is my go to spot). This will avoid interfering with any production models. (Also, look into batch upgrading where you can save all your models to a location, and the “upgrader” will go through the folder and upgrade each model saved there)
  2. Revit’s word processing changed in 2017. Anytime I’ve seen a model upgraded to 2017 and up, a lot of the text elements had to be readjusted. I feel this is the closest to any issues you would be running into.
  3. If you use windows 10, doing this process on the second desktop will keep your current work uncluttered and keep your desktop windows from freezing up on you.

archive each model in its Native version prior to upgrading.
upgrade them sequentially. 2016-2017-2018 don’t skip versions.
too many revisions and service packs to skip over will cause issues.
all associated links will need the same treatment (AutoCAD and Revit 2018 is a different file extension
[ .dwg ] in 2018 ) 2018 is not yet stable

The reasoning quoted above I find is sound enough to follow as a practice for upgrading. The less issues that could arise, the better!

To map out the upgrade logic in Dynamo:

Essentially you just need to have Dynamo open the file in the later version (performs upgrade), then quickly close it with a save option. Here is an example on just one file. (This process does take a while to run too though)


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Ok, so definetely version by version and with Dynamo.

I know there is a node to open file on background, but I have some doubts about it:

  1. Does it exist any possibility to open several projects at once?

  2. Could Revit export a report like it does when we do it manually? This is the most important point because we assume that in every migration we will lose some info or element, so we will need some report with all the warnings and errors to solve it.


  1. Yes. The only problem with doing it this way is it loads them all in memory. Embedding the action in a while loop in C# is more efficient.

  2. Admittedly, I am not super familiar with the reports as I do not deal with file upgrades as much nowadays. Perhaps other people will weigh in.

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Hi guys,
I’m trying to upgrade a model in the background using Dynamo, but I tried this scrip and it worked, but not in background…

Is there any way to do this in background or no?


@and6rea and other if you are upgrading from 2016-2018 this article will be super useful. Thanks a lot to @Konrad_K_Sobon as Always http://archi-lab.net/text-width-shenanigans/

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