Do you have plans to publish a versioned release with support for Subresource Integrity? Also, is there somewhere that the following is documented? - Required

Do you have plans to publish a versioned release with support for Subresource Integrity? Also, is there somewhere that the following is documented? - Required origins for each type of content so that this can be compatible with a Content-Security-Policy - Required use of browser features so that this can be made compatible with a Feature-Policy - Commitments from yourself that the lists of required origins/features will not be added to without prior notice, in order to give time for blog operators to update their headers accordingly Thanks