Fix: High-level document symbol cache was not invalidated when the LS-specific low-level version changed

CHANGELOG.md

@@ -52,6 +52,8 @@ Status of the `main` branch. Changes prior to the next official version change w
     Serena's own tools to close the gap (#1852)
 
 * Language Servers:
+  - Fix: High-level document symbol cache was not invalidated when the LS-specific low-level result 
+    version changed
   - Fix: TypeScript and VTS now disable automatic type acquisition as intended, while VTS
     preserves explicit user settings across initialization and configuration requests (#1989)
     VTS initialization options now override defaults per top-level key rather than replacing the

src/solidlsp/ls.py

@@ -2984,10 +2984,8 @@ class SolidLanguageServer(ABC):
         high_level_fingerprint = self._document_symbols_cache_fingerprint()
         if high_level_fingerprint is not None:
             version.append(high_level_fingerprint)
-        raw_fingerprint = self._raw_document_symbols_cache_fingerprint()
-        if raw_fingerprint is not None:
-            version.append(raw_fingerprint)
-        return version[0] if len(version) == 1 else tuple(version)
+        version.append(self._raw_document_symbols_cache_version())
+        return tuple(version)
 
     def _save_raw_document_symbols_cache(self) -> None:
         cache_file = self.cache_dir / self.RAW_DOCUMENT_SYMBOL_CACHE_FILENAME