View source for Sandbox/Version demo/3.0

{{Doc header
|type=guide
|domain=platform
|title=Version Demo (v3.0)
|order=999
|introduced=3.0
|deprecated=4.0
|status=frozen
}}
__NOINDEX__

{{Warning|1=This is a '''sandbox demonstration''' of the wiki's copy-on-write versioning system. See [[Sandbox/Version demo]] for the full comparison.}}

== Notification system (v3.0) ==

Version 3.0 introduced '''templates''', '''delivery tracking''', and '''push notifications'''.

=== Channels ===

{| class="wikitable"
! Channel !! Added in !! Notes
|-
| Email || 1.0 || Now supports HTML templates
|-
| In-app || 2.0 || Now supports rich cards with actions
|-
| SMS || 2.0 || Template-based (character-count aware)
|-
| Push (mobile) || '''3.0''' || FCM / APNs via unified adapter
|-
| Webhook || '''3.0''' || For external integrations
|}

=== Delivery tracking ===

Every notification now records:

{| class="wikitable"
! Field !! Type !! Description
|-
| <code>status</code> || enum || <code>queued → sent → delivered → read → failed</code>
|-
| <code>attempts</code> || int || Number of delivery attempts
|-
| <code>delivered_at</code> || datetime || When the channel confirmed receipt
|-
| <code>read_at</code> || datetime || When the user opened/acknowledged
|-
| <code>error</code> || text || Last failure reason (if any)
|}

== What you're observing right now ==

Three frozen forks now exist. The version dropdown shows all of them. The system demonstrates:

'''Queryability.''' Unlike Docusaurus (where version data is just directory names), Cargo stores structured metadata about every version:

{{#cargo_query:tables=Docs
|fields=_pageName=Page,IntroducedIn=Since,DeprecatedIn=Until,Status
|where=_pageName LIKE 'Sandbox/Version demo%'
|order by=IntroducedIn
|format=table
}}

That table above is a '''live query''' — not hand-maintained. It updates automatically when pages are created or modified. Try doing that in Docusaurus without writing custom React components.

[[Category:Sandbox]]