To update the BindTuning Web Parts on your SharePoint site you need first to update them on your BindTuning account.
- Login on your BindTuning account at BindTuning;
- Mouse over the gravatar and select the My Downloads;
- Select the Web Part tab;
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Mouse over the desired Web Part and View webpart details. If an update is available will show the blue pulsing icon and proceed as follows, otherwise move to step 5;

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Click the Update to version X.X.X.X button to get the latest Web Part files.
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Click to Download the Web Part.