How long before services sending/receiving XML might need replacement?

[Stephen D Green <stephengreenubl@gmail.com>]

Hi XML Dev’ers,

Do you have any opinion on how long software systems communicating with each other (one-way or two-way) using XML might be able to continue to use XML this way? If, say, governments currently require data or documents to be sent to them in XML format, what professional advice would you suggest about how long would be reasonable before this use of XML should be replaced? Or do you think such uses of XML could reasonably be perpetual? 

Many thanks for your consideration.

Stephen Green

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Stephen D Green