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Smarter diffs are great, but what is especially nice is smarter merges. I would love to see this extended to be able to do the same kinds of auto-merges that SemanticMerge could. I would pay for that functionality (just like I paid for SemanticMerge for years before they took it away to instead entice people to pay for their stupid VCS).

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Semantic merge is no longer available? :(

Nope. They integrated the functionality with Plastic SCM. And what's especially annoying is that they don't even grandfather existing customers into being able to continue using SemanticMerge. Once your current license expires, that's it, no more SemanticMerge.

Is there an existing open source effort to recreate that tool?

Are the algorithms open? Does the tool work reliably?

I find it very sad that potentially revolutionary progress is lost like this...

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