add release 1.56 (#15)

Author: tropnikovvl

docs/release-notes/v1.50-v1.59.md

@@ -10,6 +10,31 @@
 
     **Admins** - users who manage organization in ODM, its user and groups.
 
+## 1.56 Open Data Manager 2024 February Release
+
+### New Features
+
+- **[Advanced] Usage Tracking**: this feature allows to collect metrics and statistics organised in dashboards on Genestack side. Information for particular instance can be requested from Genestack. Currently available metrics are:
+    - Number of users with “Activated” status.
+    - Number of API calls broken down by API labels.
+    - Average length of UI sessions.
+    - Number of Studies.
+    - Number of metadata objects and groups for Samples, Libraries, and Preparations.
+    - Number of data objects broken down by Data Classes.
+- **Data Class labels** per Study are reintroduces from Study Browser view.
+- **[Curators] Data upload via GUI**: gct/generic data/vcf/facs data can be associated with any sample metadata attribute from template (except the key genestack:accession) when uploading data via Metadata Editor. This prevents users from need to edit original data to meet the rules of ODM data model.
+- **Templates**: Ability to rename template when duplicating it.
+
+### Fixed Major Issues
+
+- **GUI Issues**:
+    - Fixed error message when linking data to Sample metadata attribute with empty values in Study.
+
+### Other Changes
+
+- **Tasks Page**: redesigned Task Manager is available from GUI.
+- **Python SDK, R SDK** are not published in the release.
+
 ## 1.55 Open Data Manager 2023 Winter Release
 
 ### New Features