- Implemented configurable SSRF validation with internal IP/DNS rebinding protection, workspace allowlist, and tighter federation email‑domain checks; added 2FA/account‑status enforcement for enterprise DDP login and other security hardeni...
- Extended Apps Engine with multiple file uploads, a new uploads.delete endpoint, file metadata for multi‑file messages, standardized '@' prefix for usernames, and improved OpenAPI handling of multiple methods per path.
- Raised minimum supported MongoDB version to 8.0, introduced a TTL index to auto‑expire statistics after one year, and resolved numerous security and reliability bugs (rate‑limited email verification, blocked messages to archived rooms, c...