v0.9.0 — public beta

备注

This is the release note for v0.9.0 and describes that build. For what changed since, see v1.0 and the changelog.

The first public beta build.

What is in it

• Reading. PDFs, EPUBs, Word, PowerPoint, Excel and Markdown open from a folder you choose. Annotations anchor to the real position in the document and are stored alongside it.
• Region questions. Drag a box around a chart or table and ask about just that part of the page — useful when a paper stops making sense at a figure rather than at a paragraph.
• Checkable answers. Questions about a document come back with verbatim quotes that link to the page they came from. Quotes that do not match the source are dropped rather than shown.
• Canvas. 37 built-in AI Skills across six groups, for taking one question and working it over from several directions.
• Long-form writing. Outline approval before drafting, an argument ledger across chapters, and revisions presented as marked-up changes.

Known rough edges

• Builds are not signed yet, so both macOS and Windows will warn on first open. The installation guide walks through it.
• Multi-column PDFs with interleaved figures are still the hardest extraction case; quotes from those pages are worth clicking through.
• No mobile app, no web version. Not planned.

Where to start

Understand a paper in about 30 minutes is a good place to find out whether this is for you.