It was a bit long overdue, and since we've added some new features recently, those are now included as well. So I've expanded our documentation significantly - covering areas that were previously undocumented or only partially covered.
Updating documentation isn't fun, so anyone who says it is… is probably lying. 
Admin Guide - new pages added:
- Achievements, Bulletins & AutoMod
- Groups & Permissions
- Moderation Guide
- Custom Pages, Help Pages & Board Menu
- Custom Profile Fields, Name Changes & Banning
- Custom Domains & Directory Listing
- Security Logs
User Guide - now much more complete:
- Creating topics, replying, quoting & multi-quote
- Polls, reactions & mentions
- Private messages & notifications
- Your profile, search & BBCode formatting
Developer Docs - rewritten and expanded:
- Getting Started guide with authentication, scopes & error handling
- Webhooks guide with full payload examples and verification code
- JavaScript API reference covering widgets, dark mode & more
- New Recipes page with ready-to-use integration examples
You can browse everything here: https://docs.forumspark.net
The API reference at https://forumspark.net/api remains your go-to for endpoint details - the new developer guides complement it with practical walkthroughs and examples.
As always, if anything is unclear or you'd like to see something covered in more detail, just let me know and I'll get it added. 