Prepare release v0.3.0

- Fix version inconsistency: unified all __version__ strings to 0.3.0
- Update changelog.rst with comprehensive v0.3.0 release notes
- Update HISTORY.rst with full release history
- Update CONTRIBUTING.rst: Python 3.8-3.11, GitHub Actions
- Update setup.cfg bumpversion to 0.3.0

v0.3.0 includes:
- Snapshot CLI for headless STL rendering (ADR-019)
- JScadNode adapter for JSCAD backend
- Lean architecture after ADR-018 cleanup
- Full CREDITS.md license attribution

Author: lfagundes

CONTRIBUTING.rst

@@ -101,8 +101,8 @@ Before you submit a pull request, check that it meets these guidelines:
 2. If the pull request adds functionality, the docs should be updated. Put
    your new functionality into a function with a docstring, and add the
    feature to the list in README.rst.
-3. The pull request should work for Python 3.5, 3.6, 3.7 and 3.8, and for PyPy. Check
-   https://travis-ci.com/LibreSolid/solid-node/pull_requests
+3. The pull request should work for Python 3.8, 3.9, 3.10, and 3.11. Check
+   https://github.com/LibreSolid/solid-node/actions
    and make sure that the tests pass for all supported Python versions.
 
 Tips

HISTORY.rst

@@ -2,11 +2,35 @@
 History
 =======
 
+0.3.0 (2026-01-14)
+------------------
+
+* Snapshot CLI for headless STL rendering (enables AI agent workflows)
+* JScadNode adapter for JSCAD backend
+* Lean architecture: removed broker, git, refactor modules (ADR-018)
+* Full license attribution in CREDITS.md
+* License headers on all source files
+
+0.1.0 (2025-02-01)
+------------------
+
+* Stable multi-backend architecture (SolidPython2, CadQuery, OpenSCAD)
+* Web-based 3D viewer with React/Three.js
+* Development server with filesystem monitoring and hot-reload
+* Test runner for CAD projects
+* STL generation with background optimization
+
+0.0.8 (2024-12-15)
+------------------
+
+* Pre-release with improved documentation
+* Bug fixes and stability improvements
+
 0.0.1 (2023-07-13)
 ------------------
 
 * First release on PyPI, with basic structure:
   * Develop using SolidPython and CadQuery combined
   * Filesystem monitoring triggering transpilation to openscad and stl building
   * Background optimization
-  * Spatial calculations trimesh
+  * Spatial calculations with trimesh

docs/changelog.rst

@@ -5,16 +5,39 @@
 Changelog
 =========
 
-v0.2
-----
+v0.3.0
+------
+
+Released on 14/Jan/2026
+
+**New Features**
+
+* Snapshot CLI command for headless STL rendering (ADR-019)
+* JScadNode adapter for JSCAD backend support
+* Full CREDITS.md with license attribution for all dependencies
 
-Released on 25/Feb/2025
+**Architecture Improvements (ADR-018)**
 
-* Support for JScad node
-* Some work on OpenScad node
+* Removed over-engineered WebSocket IPC (broker.py)
+* Moved Git integration to solid-studio (git.py)
+* Moved IDE refactoring features to solid-studio (refactor/)
+* Removed dead code (exceptions.py, spatial.py)
+* Framework is now lean and focused on core CAD functionality
+
+**Maintenance**
+
+* Added license headers to all source files
+* Synchronized requirements.txt with setup.py
+* Removed unused "unicorn" dependency
 
 v0.1
 ----
 
-After some evolution and some releases with poor documentation,
-the project was documented and released as v0.1.
+After some evolution and several pre-releases (v0.0.1 through v0.0.8),
+the project was documented and released as v0.1 with:
+
+* Multi-backend support (SolidPython2, CadQuery, OpenSCAD)
+* Web-based 3D viewer with React/Three.js
+* Development server with hot-reload
+* Test runner for CAD projects
+* STL generation and optimization

setup.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.1.0
+current_version = 0.3.0
 commit = True
 tag = True
 

setup.py

@@ -32,7 +32,7 @@ def run(self):
 setup(
     author="Luis Fagundes",
     author_email='lhfagundes@gmail.com',
-    version='0.2',
+    version='0.3.0',
     python_requires='>=3.8',
     classifiers=[
         'Development Status :: 2 - Pre-Alpha',

solid_node/__init__.py

@@ -14,4 +14,4 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-__version__ = "0.0.5"
+__version__ = "0.3.0"

solid_node/node/__init__.py

@@ -18,7 +18,7 @@
 
 __author__ = """Luis Fagundes"""
 __email__ = 'lhfagundes@gmail.com'
-__version__ = '0.1.0'
+__version__ = '0.3.0'
 
 from .base import StlRenderStart
 from .assembly import AssemblyNode