Changelog

Product updates and release notes for LitSource.

2026-03

PubMed Search Assistant Lite (Chrome Extension)

  • Launched the Chrome extension: PubMed Search Assistant Lite, now integrated with LitSource.
  • Added PubMed query generation with direct in-page query viewing.
  • Added journal impact factor lookup to support faster paper screening.
  • Added query export for easier strategy sharing and reproducibility.
  • Added batch export for papers and query spreadsheets.

2026-02

LitSource Verify

  • Launched LitSource Verify at /verify for reference authenticity checks.
  • Added detection/classification pipeline: Verified / Suspicious / Fake with DOI + Crossref metadata matching.
  • Added credit-based billing for verify runs (shared credit pool, no separate quota plan).
  • Improved multi-reference parsing for pasted content (supports inline numbered references like 1) ... 2) ...).
  • Added paste format example block to guide first-time users.
  • Tuned title-match thresholds to reduce false Suspicious cases when Crossref match quality is high.
  • Added Suggested citation output with one-click copy.
  • Added citation style selector in Verify results: APA, MLA, Chicago, BibTeX, Vancouver, IEEE, Harvard, GB/T 7714.

Sharing

  • Added one-click share links for analysis results.
  • Added token-based shared result pages with expiration support.
  • Shared visitors can view evidence without login, while AI summary and personal actions remain login-gated.

Paper Access

  • Added original PDF open/download flow when a source PDF is available.

AI Summary

  • AI paper summaries now consume credits and return clearer error messages when credits are insufficient.

Payments

  • Fixed checkout callback origin resolution to use configured app URL (avoids localhost callback issues).
  • Added admin reconciliation for pending Creem orders to sync paid/expired/canceled outcomes.
  • Improved Creem status mapping to safely handle pending/expired/canceled/failed states.

Pricing

  • Updated plan details (Pro monthly/yearly credits, AI summary capability, plugin-in-progress messaging).
  • One-time package is now displayed as One-Time, with clearer scope and naming consistency.
  • One-Time now includes Pro export entitlement during its validity window.

Localization

  • Replaced native browser tooltips with site-styled tooltips.
  • Localized results UI, history, filters, and paper cards.
  • Expanded supported locales: Korean, Japanese, German, Spanish, Italian, Russian.
  • Added locale normalization/fallback improvements and language-aware locale switch prompts.

SEO

  • Added sitemap generation with multilingual alternates for core pages.

2026-01

Results experience

  • Improved sentence display with original sentence + hover translation.
  • Added caching for search runs and improved history replay.
Changelog | LitSource - Find Citations in Seconds