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Documentation Changes:
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Documentation Changes Summary:

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1. What would you like to communicate to the user about this feature?
2. Would you like the user to see examples of the syntax and/or executable code and its output?
3. Which versions of the driver/connector does this apply to?

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1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?

Behaviour changed on how the following linq query is parsed:

collection
    .AsQueryable()
    .Where(x => !x.List.Any(xx => xx.ToLower().Contains(input.ToLower())))
    .ToString();

Wrong query MongoDB.Driver (2.19.0):

 { "$match" : { "List" : { "$not" : { "$elemMatch" : /string/is } } } }

Expected and worked in MongoDB.Driver (2.18.0)

 { "$match" : { "List" : { "$not" : /string/is } } }

This is only broken for a $not query. The folowing snippet works fine:

collection
    .AsQueryable()
    .Where(x => x.List.Any(xx => xx.ToLower().Contains(input.ToLower())))
    .ToString()

{ "$match" : { "List" : /string/is } }