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ROADMAP.md

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+# ROADMAP
+
+_Last updated: 2024-09-03_
+
+The following is a high-level overview of the planned development for Hajk and its various components (Backend, Client UI, Admin UI).
+
+## 3.14
+
+The final release to include both .NET and NodeJS backends as official solutions.
+
+Also, this will be the last release in the 3.x branch.
+
+## 4.0
+
+This release marks the removal of the .NET backend, leaving NodeJS as the sole official backend solution. Other than that, no major changes are expected; for example, the backend will continue to use a file-based JSON structure for configuration.
+
+## 4.x
+
+Includes major fixes to the Client UI, such as revamped window management.
+
+## 5.0
+
+The Hajk 5 branch introduces several additions and changes:
+- A completely rewritten Admin UI (development begins in fall 2024).
+- The backend will no longer support the legacy file-based JSON store. Instead, all configuration will be stored in a relational database (most likely PostgreSQL, though other solutions may be supported in the future).