Changelog

[1.3] - 2026-02-11

clarify that users may click on internet links provided by webxdc apps (e.g., http:// or https://)
if messenger implementations allow accessing the internet, they MUST show the full URL to the user, ask for explicit confirmation before opening the link, and include a clear warning about privacy risks

modify webxdc.selfAddr to return a per-app identifier that can be used for the new "notify" list
add new update.notify attribute to allow causing a user-visible system notification to raise awareness that something in an app changed
add new update.href attribute so that clicking info messages will provide a "deep link" into an app to ease navigation
add new webxdc.sendUpdateMaxInterval and webxdc.sendUpdateMaxSize rate limits which helps apps to adapt to transport characteristics/limitations

shifted "supported" DOM/Javascript features from the FAQ into the messenger spec section
improved wording in several places