Known Limits
Vast is beta software and some capabilities are intentionally conservative.
Platform support
Section titled “Platform support”Windows x64 is the actively tested packaging target. macOS and Linux build targets exist but are not release-supported at the same level.
Storage
Section titled “Storage”The current primary Vast-owned application state uses JSON-based storage. More advanced database-backed storage may appear later, but should not be assumed today.
Reader mode
Section titled “Reader mode”Reader/focus behavior is not a full semantic article extraction engine in the current release.
Automation
Section titled “Automation”Some automatic trigger types are visible in the macro model but remain inactive in the current safe mode.
Spoofing
Section titled “Spoofing”Fingerprint and identity spoofing is best-effort and cannot guarantee that every script observes a perfectly uniform environment.
Extensions
Section titled “Extensions”Extension compatibility varies. Some Chrome APIs or complex extension assumptions may be partially supported or unsupported.
Password portability
Section titled “Password portability”OS-backed encryption may prevent encrypted credentials from working after moving a profile to another machine or operating-system account.
Website sessions
Section titled “Website sessions”Cookies and browser session state are included in normal profile handling where possible, but website authentication sessions are not guaranteed to survive migration across computers.
Experimental features
Section titled “Experimental features”Labs features may change faster than the stable browsing surface. Their UI, storage model, or compatibility behavior can change between beta releases.