> ## Documentation Index
> Fetch the complete documentation index at: https://docs.tightknit.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Activity Log Metadata Versions

> Changelog of the activity metadata schema.

Each activity log event is tagged with a metadata version that describes the
shape of its payload. This page contains the version changelog. Reference it when
building Salesforce components, webhook handlers, or other integrations that
consume activity data.

| Version | Released   | Summary                                                                                                                                                                 |
| ------- | ---------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 0.01    | 2024-11-02 | Initial schema.                                                                                                                                                         |
| 0.02    | 2026-03-11 | Added `post.deleted` and `comment.deleted` activity types.                                                                                                              |
| 0.03    | 2026-03-21 | Added `site.auth.login_success` and `site.auth.login_failure` activity types.                                                                                           |
| 0.04    | 2026-04-10 | Widened `post.edited` and `comment.edited` `source` to include `'slack'`.                                                                                               |
| 0.05    | 2026-04-18 | Added optional `message_id` to `post.created`, `post.edited`, `post.deleted`, `comment.created`, `comment.edited`, and `comment.deleted`.                               |
| 0.06    | 2026-06-11 | `message_id` values were regenerated and are **not continuous** with 0.05 (same `msg_` format, new values). Use `post_id` / `comment_id` for cross-version correlation. |