Release Notes

REVIFF changelog

Version history and launch notes for REVIFF, focused on the drawing comparison workflow.

REVIFF v2.0.0.0

The core is unchanged and needs no account: compare, Classic clouds and export work as in 1.0, and drawings are never uploaded to AEC DX Labs. REVIFF 2.0 adds Beta features for the review itself, which need a one-time activation. Compare, export and the app improve too.

2.0.0.0

Release version

Review Report

Beta

ShapeFit

Beta clouds

Claude / Gemini

Optional AI review

Beta features

  • Activate Beta features once with your email and a 6-digit code, or with Google or Microsoft. No password. They work offline for up to 30 days, and may change or be removed later.
  • ShapeFit clouds follow the shape of each change and merge overlaps, so busy drawings stay readable. Choose Balanced or Detailed.
  • Review Report: every change becomes a card with before, after and difference pictures.
  • Add a review decision and a note to each change, or decide many at once. Add the reviewer name and a key plan.
  • Export the report to PDF with a page-by-page preview. The PDF follows the report's sort.
  • Optional AI review by Claude or Gemini describes each change, writes a digest per sheet and an overall summary of the revision.
  • Claude runs in the Claude Desktop app through REVIFF's local extension (Connect Claude in Settings). Gemini runs with your own Google API key.

Compare and export

  • Auto-align before compare, on by default.
  • Compare areas: ignore an area, or compare only inside it.
  • More than one PDF or image per side.
  • Overlay mode with a Before/After fade, and Added / Removed / Unchanged layers.
  • A new export dialog with a page-by-page preview.
  • Exported diff results carry a color legend, file names and the date.

The app

  • A 1-minute quick tour with a finished sample.
  • A What's new window when you update.
  • If REVIFF closes unexpectedly, it offers to restore your work.
  • Account: your name and photo, your PCs, and backups of color presets and export settings.
  • News, bug reports and support questions inside REVIFF.
  • New menu bar and Settings window, with Light and Dark themes.
  • Faster startup and lower memory use, in English and Japanese.

Privacy

  • Drawings are never uploaded to AEC DX Labs.
  • The update check and News carry no account or PC ID.
  • When you're signed in, the PC name, Windows version, REVIFF version and a hashed PC ID are registered to your account.
  • Beta feature use is sent once a day (which features, on which days, no files). Turn it off in Settings → News & privacy.
  • Crash reports and support requests never include drawings or file names.
  • Only the pictures and text of the changes you analyze go to Gemini. Claude reads the report through Claude Desktop under your own Claude account.

Fixes in the final build

  • When you sign in with Google or Microsoft, your browser opens your AEC DX Labs account page, already signed in.
  • Fixes to color presets, the AI overall summary, the Gemini model list, export order, and keeping your review when you reopen the report.

REVIFF v1.0.0.0

The first REVIFF release moves the drawing comparison workflow into a Store-first Windows app with stronger alignment, comparison, cloud mark styling, and update foundations.

1.0.0.0

Release version

Store/MSIX

Distribution

PDF + images

Input scope

Alignment

Auto / partial

Alignment and comparison

  • Added auto alignment and partial alignment for shifted drawing content.
  • Improved structural raster preprocessing and diff refresh handling for aligned pages.
  • Expanded compare color controls with presets, custom colors, and changed-page refresh.

Cloud marks and export

  • Expanded cloud mark appearance controls for stroke, fill, opacity, and change-type color scope.
  • Kept export focused on review-ready PDF and PNG deliverables.

BETA v0.9.0

First public beta release, originally published as PDF Diff. This version introduced the core local workflow for loading two drawing sets, comparing pages, reviewing detected changes, and exporting results.

Local-first

Drawing set comparison

Split / Diff

Review modes

Cloud Marks

Beta markup workflow

PDF + PNG

Export output

EN / JA

Language support

Core comparison

  • Compare Before and After PDF drawing sets locally.
  • Compare selected pages or the full drawing set.
  • Review page thumbnails with similarity scoring to identify changed sheets faster.
  • Detect page-size mismatches and apply preview size matching when sheets do not align cleanly.

Reviewing changes

  • Use Split and Diff viewing modes for side-by-side review and change-focused inspection.
  • Use synced zoom and pan, fit-to-screen, and full-screen controls for closer review.
  • Switch between Before, After, and Result layers while working in Diff view.
  • Adjust compare colors with presets and custom color controls.
  • Move through changed pages faster with built-in keyboard shortcuts.

Diff markers and cloud marks

  • Generate cloud marks for the current page or all selected changed pages.
  • Browse detected regions more easily from the dedicated Changes tab.
  • Merge, break apart, move, and resize cloud marks during review.
  • Undo and redo cloud mark edits while refining change areas.
  • Adjust cloud numbering and size controls for clearer review output.

Export and workflow polish

  • Export results to PDF or PNG.
  • Export all pages, clear selections, or export changed pages only.
  • Create export-ready output with cloud mark overlays and automatic file naming.
  • Track longer jobs with progress feedback and cancellation support.
  • Review larger drawing sets more smoothly during page-to-page navigation.

Settings and utility

  • Save preferences for viewer mode, default cloud mark behavior, and language.
  • Use the app in English or Japanese.
  • Open the Help & Shortcuts panel for quicker onboarding.
  • Access the Settings and About dialog for version and product details.
  • View application logs and third-party notices from built-in utility screens.