diff --git a/CMakeLists.txt b/CMakeLists.txt
index a32048cb..871bd88b 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,5 +9,5 @@ include($ENV{IDF_PATH}/tools/cmake/project.cmake)
 # "Trim" the build. Include the minimal set of components, main, and anything it depends on.
 idf_build_set_property(MINIMAL_BUILD ON)
 
-set(PROJECT_VER "2.2.2")
+set(PROJECT_VER "2.2.3")
 project(xiaozhi)
diff --git a/scripts/release.py b/scripts/release.py
index dc8de7cb..83681c22 100755
--- a/scripts/release.py
+++ b/scripts/release.py
@@ -101,27 +101,25 @@ def _collect_variants(config_filename: str = "config.json") -> list[dict[str, st
 
 
 
-def _parse_board_config_map() -> dict[str, str]:
-    """Build the mapping of CONFIG_BOARD_TYPE_xxx and board_type from main/CMakeLists.txt"""
-    cmake_file = Path("main/CMakeLists.txt")
-    mapping: dict[str, str] = {}
-    lines = cmake_file.read_text(encoding="utf-8").splitlines()
-    for idx, line in enumerate(lines):
-        if "if(CONFIG_BOARD_TYPE_" in line:
-            config_name = line.strip().split("if(")[1].split(")")[0]
-            if idx + 1 < len(lines):
-                next_line = lines[idx + 1].strip()
-                if next_line.startswith("set(BOARD_TYPE"):
-                    board_type = next_line.split('"')[1]
-                    mapping[config_name] = board_type
-    return mapping
-
-
 def _find_board_config(board_type: str) -> Optional[str]:
-    """Find the corresponding CONFIG_BOARD_TYPE_xxx for the given board_type"""
-    for config, b_type in _parse_board_config_map().items():
-        if b_type == board_type:
-            return config
+    """Find the corresponding CONFIG_BOARD_TYPE_xxx for the given board_type
+    
+    Search backwards from 'set(BOARD_TYPE "xxx")' to find the nearest if(CONFIG_BOARD_TYPE_).
+    """
+    board_leaf = board_type.split("/")[-1]
+    pattern = f'set(BOARD_TYPE "{board_leaf}")'
+    
+    cmake_file = Path("main/CMakeLists.txt")
+    lines = cmake_file.read_text(encoding="utf-8").splitlines()
+    
+    for idx, line in enumerate(lines):
+        if pattern in line:
+            # Found the BOARD_TYPE line, search backwards for the config
+            for back_idx in range(idx - 1, -1, -1):
+                back_line = lines[back_idx]
+                if "if(CONFIG_BOARD_TYPE_" in back_line:
+                    return back_line.strip().split("if(")[1].split(")")[0]
+            break
     return None