release 1.4.0

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: fedorov

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/).
 
 ## [Unreleased]
 
+## [1.4.0] - 2026-03-04
+
 ### Added
 
 - New "Identifying Tumor vs Normal Slides" section in digital pathology guide with two approaches:

SKILL.md

@@ -3,7 +3,7 @@ name: imaging-data-commons
 description: Query and download public cancer imaging data from NCI Imaging Data Commons using idc-index. Use for accessing large-scale radiology (CT, MR, PET) and pathology datasets for AI training or research. No authentication required. Query by metadata, visualize in browser, check licenses.
 license: This skill is provided under the MIT License. IDC data itself has individual licensing (mostly CC-BY, some CC-NC) that must be respected when using the data.
 metadata:
-    version: 1.3.1
+    version: 1.4.0
     skill-author: Andrey Fedorov, @fedorov
     idc-index: "0.11.10"
     idc-data-version: "v23"