diff --git a/.github/workflows/build-all.yml b/.github/workflows/build-all.yml
index 703067ac..c7df2d21 100644
--- a/.github/workflows/build-all.yml
+++ b/.github/workflows/build-all.yml
@@ -2,7 +2,7 @@ name: Build All Platforms
 
 on:
   push:
-    branches: [ dev_cross_build, dev_improve_client_fetch_tools_cross_build ]
+    branches: [ br_release ]
   workflow_dispatch:
     inputs:
       build_type:
@@ -13,11 +13,6 @@ on:
         options:
           - Release
           - Debug
-      version:
-        description: 'Library version (e.g., 0.1.0)'
-        required: false
-        default: '0.1.0'
-        type: string
       create_release:
         description: 'Create GitHub Release'
         required: false
@@ -30,7 +25,6 @@ permissions:
 
 env:
   BUILD_TYPE: ${{ github.event.inputs.build_type || 'Release' }}
-  LIB_VERSION: ${{ github.event.inputs.version || '0.1.0' }}
 
 jobs:
   # Linux builds (x64 and ARM64)
@@ -215,13 +209,24 @@ jobs:
     runs-on: ubuntu-latest
     needs: [build-linux, build-windows, build-macos]
     if: |
-      (github.event_name == 'push' && (github.ref == 'refs/heads/dev_cross_build' || github.ref == 'refs/heads/dev_improve_client_fetch_tools_cross_build')) ||
+      (github.event_name == 'push' && github.ref == 'refs/heads/br_release') ||
       (github.event_name == 'workflow_dispatch' && github.event.inputs.create_release == 'true')
 
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
 
+      - name: Extract version from CMakeLists.txt
+        id: version
+        run: |
+          VERSION=$(grep -E "^project\(gopher-mcp VERSION" CMakeLists.txt | sed -E 's/.*VERSION ([0-9]+\.[0-9]+\.[0-9]+).*/\1/')
+          if [ -z "$VERSION" ]; then
+            echo "Error: Could not extract version from CMakeLists.txt"
+            exit 1
+          fi
+          echo "version=${VERSION}" >> $GITHUB_OUTPUT
+          echo "Extracted version: ${VERSION}"
+
       - name: Download all artifacts
         uses: actions/download-artifact@v4
         with:
@@ -272,62 +277,63 @@ jobs:
           echo "=== Release Archives ==="
           ls -la *.tar.gz *.zip 2>/dev/null || true
 
-      - name: Generate build report
+      - name: Extract changelog for release
+        id: changelog
         run: |
-          cat > BUILD_REPORT.md << EOF
-          # Build Report - libgopher-mcp
+          VERSION="${{ steps.version.outputs.version }}"
+          # Extract the content of the latest version section from CHANGELOG.md
+          # Find the section starting with ## [VERSION] and ending before the next ## [
+          if [ -f "CHANGELOG.md" ]; then
+            # Extract content between ## [VERSION] and the next ## [
+            CHANGELOG_CONTENT=$(awk -v ver="$VERSION" '
+              /^## \[/ {
+                if (found) exit
+                if ($0 ~ "\\[" ver "\\]") found=1
+                next
+              }
+              found { print }
+            ' CHANGELOG.md)
+
+            if [ -z "$CHANGELOG_CONTENT" ]; then
+              CHANGELOG_CONTENT="No changelog entry found for version ${VERSION}"
+            fi
+          else
+            CHANGELOG_CONTENT="CHANGELOG.md not found"
+          fi
 
+          # Write to file for use in release notes
+          echo "$CHANGELOG_CONTENT" > CHANGELOG_SECTION.md
+
+      - name: Generate release notes
+        run: |
+          VERSION="${{ steps.version.outputs.version }}"
+          cat > RELEASE_NOTES.md << EOF
           ## Build Information
-          - **Date:** $(date -u +"%Y-%m-%d %H:%M:%S UTC")
-          - **Commit:** ${{ github.sha }}
-          - **Branch:** ${{ github.ref_name }}
-          - **Build Type:** ${{ env.BUILD_TYPE }}
-          - **Library Version:** ${{ env.LIB_VERSION }}
-
-          ## Platforms Built
-
-          ### Linux
-          - ✅ x64 (Ubuntu 20.04+, GLIBC 2.31+)
-          - ✅ ARM64 (Ubuntu 20.04+, GLIBC 2.31+)
-
-          ### Windows
-          - ✅ x64 (Windows 7+, MinGW-w64)
-          - ✅ ARM64 (Windows 10+, LLVM-MinGW)
-
-          ### macOS
-          - ✅ x64 (macOS 10.15+, Intel)
-          - ✅ ARM64 (macOS 11.0+, Apple Silicon)
-
-          ## Package Contents
-
-          Each platform package includes:
-          - Main library (\`.so\`, \`.dll\`, or \`.dylib\`)
-          - C API library for FFI bindings
-          - Import library (\`.lib\` for Windows)
-          - Header files (\`include/\`)
-          - Verification tool
-
-          ## Usage
-
-          ### Linux/macOS
-          \`\`\`bash
-          tar -xzf libgopher-mcp-<platform>.tar.gz
-          ./verify_mcp  # Test the library
-          \`\`\`
-
-          ### Windows
-          \`\`\`powershell
-          Expand-Archive libgopher-mcp-windows-<arch>.zip
-          .\verify_mcp.exe  # Test the library
-          \`\`\`
+
+          | Field | Value |
+          |-------|-------|
+          | **Version** | ${VERSION} |
+          | **Date** | $(date -u +"%Y-%m-%d %H:%M:%S UTC") |
+          | **Commit** | ${{ github.sha }} |
+          | **Branch** | ${{ github.ref_name }} |
+          | **Build Type** | ${{ env.BUILD_TYPE }} |
+
+          ### Platforms
+          - Linux: x64, ARM64
+          - Windows: x64, ARM64
+          - macOS: x64, ARM64
+
+          ## What's Changed
+
           EOF
 
+          cat CHANGELOG_SECTION.md >> RELEASE_NOTES.md
+
       - name: Generate release tag
         id: tag
         run: |
-          VERSION="${{ env.LIB_VERSION }}"
-          TIMESTAMP=$(date +%Y%m%d-%H%M%S)
-          TAG="v${VERSION}-${TIMESTAMP}"
+          VERSION="${{ steps.version.outputs.version }}"
+          TAG="v${VERSION}"
           echo "tag=${TAG}" >> $GITHUB_OUTPUT
           echo "Release tag: ${TAG}"
 
@@ -336,7 +342,7 @@ jobs:
         with:
           tag_name: ${{ steps.tag.outputs.tag }}
           name: libgopher-mcp ${{ steps.tag.outputs.tag }}
-          body_path: BUILD_REPORT.md
+          body_path: RELEASE_NOTES.md
           draft: false
           prerelease: false
           files: |
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 00000000..87262578
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,37 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+
+### Changed
+
+### Fixed
+
+
+## [0.1.1] - 2026-03-03
+
+### Added
+
+### Changed
+
+### Fixed
+
+## [0.1.0] - 2025-12-15
+
+### Added
+- Full MCP 2025-06-18 specification implementation
+- JSON-RPC 2.0 protocol support
+- Transport layers: stdio, HTTP+SSE, HTTPS+SSE, TCP
+- Filter chain architecture with HTTP codec, SSE codec, routing
+- Connection pooling and management
+- C API bindings for FFI (Python, TypeScript, Go, Rust, Java, C#, Ruby)
+- Cross-platform support: Linux, macOS, Windows (x64 and ARM64)
+- libevent-based event loop integration
+- SSL/TLS transport support
+- Comprehensive logging framework
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e968276f..2081d5fc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@ Please create a build directory and run cmake from there:
 You may need to remove CMakeCache.txt and CMakeFiles/")
 endif()
 
-project(gopher-mcp VERSION 0.1.0 LANGUAGES C CXX)
+project(gopher-mcp VERSION 0.1.1 LANGUAGES C CXX)
 
 # Set library version for shared libraries
 set(GOPHER_MCP_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
diff --git a/docker-mcp/Dockerfile.linux-arm64-cross b/docker-mcp/Dockerfile.linux-arm64-cross
index 381914ab..ede811ac 100644
--- a/docker-mcp/Dockerfile.linux-arm64-cross
+++ b/docker-mcp/Dockerfile.linux-arm64-cross
@@ -85,7 +85,7 @@ RUN mkdir -p cmake-build && cd cmake-build && \
     PKG_CONFIG_LIBDIR=/usr/lib/aarch64-linux-gnu/pkgconfig \
     cmake -DCMAKE_BUILD_TYPE=Release \
           -DCMAKE_TOOLCHAIN_FILE=/build/toolchain-aarch64.cmake \
-          -DCMAKE_CXX_STANDARD=17 \
+          -DCMAKE_CXX_STANDARD=14 \
           -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
           -DBUILD_SHARED_LIBS=ON \
           -DBUILD_STATIC_LIBS=ON \
diff --git a/docker-mcp/Dockerfile.linux-x64 b/docker-mcp/Dockerfile.linux-x64
index 53c10975..2c52dd9f 100644
--- a/docker-mcp/Dockerfile.linux-x64
+++ b/docker-mcp/Dockerfile.linux-x64
@@ -19,7 +19,7 @@ COPY . /build/
 # Create build directory and build
 RUN mkdir -p cmake-build && cd cmake-build && \
     cmake -DCMAKE_BUILD_TYPE=Release \
-          -DCMAKE_CXX_STANDARD=17 \
+          -DCMAKE_CXX_STANDARD=14 \
           -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
           -DBUILD_SHARED_LIBS=ON \
           -DBUILD_STATIC_LIBS=ON \
diff --git a/docker-mcp/Dockerfile.windows-arm64-llvm b/docker-mcp/Dockerfile.windows-arm64-llvm
index ecac2990..405f01f7 100644
--- a/docker-mcp/Dockerfile.windows-arm64-llvm
+++ b/docker-mcp/Dockerfile.windows-arm64-llvm
@@ -117,7 +117,7 @@ RUN mkdir -p cmake-build && cd cmake-build && \
     cmake \
         -DCMAKE_TOOLCHAIN_FILE=/build/toolchain-win-arm64.cmake \
         -DCMAKE_BUILD_TYPE=Release \
-        -DCMAKE_CXX_STANDARD=17 \
+        -DCMAKE_CXX_STANDARD=14 \
         -DBUILD_SHARED_LIBS=ON \
         -DBUILD_STATIC_LIBS=OFF \
         -DBUILD_TESTS=OFF \
diff --git a/docker-mcp/Dockerfile.windows-x64 b/docker-mcp/Dockerfile.windows-x64
index 339de556..a7418e5a 100644
--- a/docker-mcp/Dockerfile.windows-x64
+++ b/docker-mcp/Dockerfile.windows-x64
@@ -140,7 +140,7 @@ RUN mkdir -p cmake-build && cd cmake-build && \
     cmake \
         -DCMAKE_TOOLCHAIN_FILE=/build/toolchain.cmake \
         -DCMAKE_BUILD_TYPE=Release \
-        -DCMAKE_CXX_STANDARD=17 \
+        -DCMAKE_CXX_STANDARD=14 \
         -DBUILD_SHARED_LIBS=ON \
         -DBUILD_STATIC_LIBS=OFF \
         -DBUILD_TESTS=OFF \
diff --git a/docker-mcp/build-mac-arm64.sh b/docker-mcp/build-mac-arm64.sh
index c0d447bd..71e3ec74 100755
--- a/docker-mcp/build-mac-arm64.sh
+++ b/docker-mcp/build-mac-arm64.sh
@@ -128,7 +128,7 @@ export PKG_CONFIG_PATH="${HOMEBREW_PREFIX}/lib/pkgconfig:${OPENSSL_ROOT}/lib/pkg
 
 CMAKE_ARGS=(
     -DCMAKE_BUILD_TYPE=Release
-    -DCMAKE_CXX_STANDARD=17
+    -DCMAKE_CXX_STANDARD=14
     -DCMAKE_OSX_DEPLOYMENT_TARGET=${MIN_MACOS_VERSION}
     -DCMAKE_OSX_ARCHITECTURES=arm64
     -DCMAKE_POSITION_INDEPENDENT_CODE=ON
diff --git a/docker-mcp/build-mac-x64.sh b/docker-mcp/build-mac-x64.sh
index d3ada32e..420ef854 100755
--- a/docker-mcp/build-mac-x64.sh
+++ b/docker-mcp/build-mac-x64.sh
@@ -80,7 +80,7 @@ fi
 
 cmake \
     -DCMAKE_BUILD_TYPE=Release \
-    -DCMAKE_CXX_STANDARD=17 \
+    -DCMAKE_CXX_STANDARD=14 \
     -DCMAKE_OSX_DEPLOYMENT_TARGET=${MIN_MACOS_VERSION} \
     -DCMAKE_OSX_ARCHITECTURES=x86_64 \
     -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
diff --git a/dump-version.sh b/dump-version.sh
new file mode 100755
index 00000000..1b35d8e8
--- /dev/null
+++ b/dump-version.sh
@@ -0,0 +1,111 @@
+#!/bin/bash
+
+# dump-version.sh - Update CHANGELOG.md with version from CMakeLists.txt
+#
+# This script:
+# 1. Extracts version from CMakeLists.txt
+# 2. Moves [Unreleased] content to a new versioned section
+# 3. Adds new empty [Unreleased] section at top
+#
+# Usage: ./dump-version.sh
+
+set -e
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+CMAKE_FILE="${SCRIPT_DIR}/CMakeLists.txt"
+CHANGELOG_FILE="${SCRIPT_DIR}/CHANGELOG.md"
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+# Extract version from CMakeLists.txt
+# Matches: project(gopher-mcp VERSION 0.1.0 LANGUAGES C CXX)
+VERSION=$(grep -E "^project\(gopher-mcp VERSION" "$CMAKE_FILE" | sed -E 's/.*VERSION ([0-9]+\.[0-9]+\.[0-9]+).*/\1/')
+
+if [ -z "$VERSION" ]; then
+    echo -e "${RED}Error: Could not extract version from CMakeLists.txt${NC}"
+    exit 1
+fi
+
+echo -e "${YELLOW}Extracted version: ${GREEN}${VERSION}${NC}"
+
+# Check if this version tag already exists in git
+TAG="v${VERSION}"
+if git tag -l "$TAG" | grep -q "^${TAG}$"; then
+    echo -e "${RED}Error: Git tag '${TAG}' already exists!${NC}"
+    echo -e "${YELLOW}Please update the version in CMakeLists.txt to a new version.${NC}"
+    exit 1
+fi
+echo -e "${GREEN}Tag '${TAG}' is available${NC}"
+
+# Check if CHANGELOG.md exists
+if [ ! -f "$CHANGELOG_FILE" ]; then
+    echo -e "${RED}Error: CHANGELOG.md not found${NC}"
+    exit 1
+fi
+
+# Check if [Unreleased] section exists
+if ! grep -q "## \[Unreleased\]" "$CHANGELOG_FILE"; then
+    echo -e "${RED}Error: [Unreleased] section not found in CHANGELOG.md${NC}"
+    exit 1
+fi
+
+# Get today's date
+TODAY=$(date +%Y-%m-%d)
+
+# Use Python for reliable cross-platform text processing
+python3 << EOF
+import re
+import sys
+
+version = "${VERSION}"
+today = "${TODAY}"
+
+with open("${CHANGELOG_FILE}", 'r') as f:
+    content = f.read()
+
+# Pattern to match [Unreleased] section and its content
+pattern = r'(## \[Unreleased\])\n(.*?)(\n## \[)'
+match = re.search(pattern, content, re.DOTALL)
+
+if not match:
+    print("Error: Could not parse [Unreleased] section")
+    sys.exit(1)
+
+unreleased_content = match.group(2).strip()
+
+# Create new content
+new_unreleased = """## [Unreleased]
+
+### Added
+
+### Changed
+
+### Fixed
+"""
+
+new_version_section = f"## [{version}] - {today}"
+
+if unreleased_content:
+    new_version_section += f"\n\n{unreleased_content}"
+
+# Replace the [Unreleased] section with new unreleased + versioned section
+new_content = content[:match.start()] + new_unreleased + "\n\n" + new_version_section + "\n" + match.group(3) + content[match.end():]
+
+with open("${CHANGELOG_FILE}", 'w') as f:
+    f.write(new_content)
+
+print("Done")
+EOF
+
+echo -e "${GREEN}CHANGELOG.md updated successfully!${NC}"
+echo -e "  - Moved [Unreleased] content to [${VERSION}] - ${TODAY}"
+echo -e "  - Added new empty [Unreleased] section"
+echo ""
+echo -e "${YELLOW}Next steps:${NC}"
+echo "  1. Review CHANGELOG.md changes"
+echo "  2. Commit: git add CHANGELOG.md && git commit -m \"Release ${VERSION}\""
+echo "  3. Push to br_release branch"