v3.3.0 v1.23.0
MCP-UI-Org/mcp-uiSep 21, 2026 → Sep 22, 20261 day between releases
What's New
Upgrade shifts focus from model catalogue refresh to PDF text extraction and rendering fixes.
New Features
- Repair of text-layer extraction for large Form XObjects.
- Visual-order reading for right-to-left text runs.
- Improved CMap decoding and interpolation.
- Detection of invisible text layers as scans.
Improvements
- Improved decoding of re-encoded simple fonts using `/Differences` names.
- Interpolation of single-glyph gaps in ToUnicode CMap.
Bug Fixes
- Fixed reading of Form XObjects with oversized bounding box numerals.
- Fixed right-to-left text runs to vote for visual storage.
- Fixed detached spacing accents to attach to the correct letter.
- Fixed reading of re-encoded fonts with stale ToUnicode CMap.
Upgrade Notes
This release introduces a significant shift in functionality from model catalogue management to PDF text extraction and rendering. There are no specific migration guides provided in the release notes, but the drastic version difference suggests a major overhaul requiring comprehensive testing of text rendering workflows.
The Two Releases
v3.3.0
Sep 21, 2026· 1 month ago
This release introduces a network refresh for the model catalogue at the start of a scan, ensuring users have access to the latest available models.
Full release notes1.23.0 — Text-layer repairs
Sep 22, 2026· 1 month ago
This release addresses critical text-layer extraction issues, including handling large Form XObject bounds, fixing right-to-left text reading order, and improving CMap decoding for complex fonts.
Full release notes