What will the new version of System Builder change?

I have heard that a new version of System Builder is coming...

Indeed, a version 2 is in preparation.

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Can I continue to develop my old system under the old version of System Builder or will I have to upgrade it after the new version is deployed?

It will be possible to stay in System Builder v1 or to convert your old system to System Builder v2, which will require some changes in your script, although the API will be similar.

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Can I choose which version of System Builder I want to use for future systems after the new version is deployed?

Systems created after the deployment of the new System Builder can only be developed under this new version.