diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index de985bc..9eb91f7 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -6,12 +6,12 @@
   },
   "metadata": {
     "description": "Project management plugins with Gitea and NetBox integrations",
-    "version": "4.0.0"
+    "version": "4.1.0"
   },
   "plugins": [
     {
       "name": "projman",
-      "version": "3.1.0",
+      "version": "3.2.0",
       "description": "Sprint planning and project management with Gitea integration",
       "source": "./plugins/projman",
       "author": {
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ceedc06..c8317a9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,18 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+---
+
+## [4.1.0] - 2026-01-26
+
 ### Added
+- **projman:** Wiki-based planning workflow enhancement (V04.1.0)
+  - Flexible input source detection in `/sprint-plan` (file, wiki, or conversation)
+  - Wiki proposal and implementation page creation during sprint planning
+  - Wiki reference linking in created issues
+  - Wiki status updates in `/sprint-close` (Implemented/Partial/Failed)
+  - Metadata section in lessons learned with implementation link for traceability
+  - New `/proposal-status` command for viewing proposal/implementation tree
 - **projman:** `/suggest-version` command - Analyzes CHANGELOG and recommends semantic version bump
 - **projman:** SessionStart hook now suggests sprint planning when open issues exist without milestone
 - **projman:** SessionStart hook now warns about unreleased CHANGELOG entries
@@ -21,6 +32,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Documentation drift: COMMANDS-CHEATSHEET.md was missing data-platform plugin added in v4.0.0
 - Proactive sprint planning: projman now suggests `/sprint-plan` at session start when unplanned issues exist
 
+### Known Issues
+- **MCP Bug #160:** `update_wiki_page` tool renames pages to "unnamed" when page_name contains URL-encoded characters (`:` → `%3A`). Workaround: use `create_wiki_page` to overwrite instead.
+
 ---
 
 ## [4.0.0] - 2026-01-25
diff --git a/README.md b/README.md
index be30d59..3ce62a9 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Leo Claude Marketplace - v4.0.0
+# Leo Claude Marketplace - v4.1.0
 
 A collection of Claude Code plugins for project management, infrastructure automation, and development workflows.
 
diff --git a/mcp-servers/gitea/mcp_server/gitea_client.py b/mcp-servers/gitea/mcp_server/gitea_client.py
index 3e077af..abe62ba 100644
--- a/mcp-servers/gitea/mcp_server/gitea_client.py
+++ b/mcp-servers/gitea/mcp_server/gitea_client.py
@@ -239,8 +239,11 @@ class GiteaClient:
         repo: Optional[str] = None
     ) -> Dict:
         """Get a specific wiki page by name."""
+        from urllib.parse import quote
         owner, target_repo = self._parse_repo(repo)
-        url = f"{self.base_url}/repos/{owner}/{target_repo}/wiki/page/{page_name}"
+        # URL-encode the page_name to handle special characters like ':'
+        encoded_page_name = quote(page_name, safe='')
+        url = f"{self.base_url}/repos/{owner}/{target_repo}/wiki/page/{encoded_page_name}"
         logger.info(f"Getting wiki page '{page_name}' from {owner}/{target_repo}")
         response = self.session.get(url)
         response.raise_for_status()
@@ -271,9 +274,13 @@ class GiteaClient:
         repo: Optional[str] = None
     ) -> Dict:
         """Update an existing wiki page."""
+        from urllib.parse import quote
         owner, target_repo = self._parse_repo(repo)
-        url = f"{self.base_url}/repos/{owner}/{target_repo}/wiki/page/{page_name}"
+        # URL-encode the page_name to handle special characters like ':'
+        encoded_page_name = quote(page_name, safe='')
+        url = f"{self.base_url}/repos/{owner}/{target_repo}/wiki/page/{encoded_page_name}"
         data = {
+            'title': page_name,  # CRITICAL: include title to preserve page name
             'content_base64': self._encode_base64(content)
         }
         logger.info(f"Updating wiki page '{page_name}' in {owner}/{target_repo}")
@@ -287,8 +294,11 @@ class GiteaClient:
         repo: Optional[str] = None
     ) -> bool:
         """Delete a wiki page."""
+        from urllib.parse import quote
         owner, target_repo = self._parse_repo(repo)
-        url = f"{self.base_url}/repos/{owner}/{target_repo}/wiki/page/{page_name}"
+        # URL-encode the page_name to handle special characters like ':'
+        encoded_page_name = quote(page_name, safe='')
+        url = f"{self.base_url}/repos/{owner}/{target_repo}/wiki/page/{encoded_page_name}"
         logger.info(f"Deleting wiki page '{page_name}' from {owner}/{target_repo}")
         response = self.session.delete(url)
         response.raise_for_status()
diff --git a/plugins/projman/agents/orchestrator.md b/plugins/projman/agents/orchestrator.md
index c97471e..9ed8832 100644
--- a/plugins/projman/agents/orchestrator.md
+++ b/plugins/projman/agents/orchestrator.md
@@ -465,7 +465,44 @@ update_wiki_page(
 )
 ```
 
-**G. Git Operations**
+**G. Update CHANGELOG (MANDATORY)**
+
+Add all sprint changes to `[Unreleased]` section:
+```markdown
+## [Unreleased]
+
+### Added
+- **projman:** New feature description
+- **plugin-name:** Another feature
+
+### Changed
+- **projman:** Modified behavior
+
+### Fixed
+- **plugin-name:** Bug fix description
+```
+
+**IMPORTANT:** Never skip this step. Every sprint must update CHANGELOG.
+
+**H. Version Check**
+
+Run `/suggest-version` to analyze CHANGELOG and recommend version bump:
+```
+/suggest-version
+```
+
+If release is warranted:
+```bash
+./scripts/release.sh X.Y.Z
+```
+
+This ensures version numbers stay in sync:
+- README.md title
+- .claude-plugin/marketplace.json
+- Git tags
+- CHANGELOG.md section header
+
+**I. Git Operations**
 
 Offer to handle git cleanup:
 ```
@@ -541,6 +578,8 @@ Would you like me to handle git operations?
 10. **Capture lessons** - At sprint close, interview thoroughly
 11. **Update wiki status** - At sprint close, update implementation and proposal pages
 12. **Link lessons to wiki** - Include lesson links in implementation completion summary
+13. **Update CHANGELOG** - MANDATORY at sprint close, never skip
+14. **Run suggest-version** - Check if release is needed after CHANGELOG update
 
 ## Your Mission
 
diff --git a/plugins/projman/commands/sprint-close.md b/plugins/projman/commands/sprint-close.md
index b5e392d..4ebb73f 100644
--- a/plugins/projman/commands/sprint-close.md
+++ b/plugins/projman/commands/sprint-close.md
@@ -54,13 +54,23 @@ The orchestrator agent will guide you through:
    - If partial: Keep status as "In Progress", note completed implementations
    - Add summary of what was accomplished
 
-7. **Git Operations**
-   - Commit any remaining work
+7. **Update CHANGELOG** (MANDATORY)
+   - Add all sprint changes to `[Unreleased]` section in CHANGELOG.md
+   - Categorize: Added, Changed, Fixed, Removed, Deprecated
+   - Include plugin prefix (e.g., `- **projman:** New feature`)
+
+8. **Version Check**
+   - Run `/suggest-version` to analyze changes and recommend version bump
+   - If release warranted: run `./scripts/release.sh X.Y.Z`
+   - Ensures version numbers stay in sync across files
+
+9. **Git Operations**
+   - Commit any remaining work (including CHANGELOG updates)
    - Merge feature branches if needed
    - Clean up merged branches
-   - Tag sprint completion
+   - Tag sprint completion (if release created)
 
-8. **Close Milestone**
+10. **Close Milestone**
    - Use `update_milestone` to close the sprint milestone
    - Document final completion status