diff --git a/README.md b/README.md
index b3473a12c..b0faf85c7 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,8 @@ # MetaGPT: The Multi-Agent Framework
 
 <p align="center">Software Company Multi-Role Schematic (Gradually Implementing)</p>
 
-
+## News
+- Dec 15: v0.5.0 is released! We introduce **incremental development**, facilitating agents to build up larger projects on top of their previous efforts or exisiting human codebase. We also launch a whole collection of important features, including multilingual support (experimental), multiple programming languages support (experimental), incremental development (experimental), CLI support, pip support, enhanced code review, documentation mechanism, and optimized messaging mechanism!
 
 ## Install
 
diff --git a/config/config.yaml b/config/config.yaml
index 8fd208c59..dc4c4ea5a 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -1,6 +1,9 @@
 # DO NOT MODIFY THIS FILE, create a new key.yaml, define OPENAI_API_KEY.
 # The configuration of key.yaml has a higher priority and will not enter git
 
+#### Project Path Setting
+# WORKSPACE_PATH: "Path for placing output files"
+
 #### if OpenAI
 ## The official OPENAI_API_BASE is https://api.openai.com/v1
 ## If the official OPENAI_API_BASE is not available, we recommend using the [openai-forward](https://github.com/beidongjiedeguang/openai-forward).
diff --git a/metagpt/config.py b/metagpt/config.py
index 19bd02c87..d7f5c1249 100644
--- a/metagpt/config.py
+++ b/metagpt/config.py
@@ -45,9 +45,11 @@ class Config(metaclass=Singleton):
     default_yaml_file = METAGPT_ROOT / "config/config.yaml"
 
     def __init__(self, yaml_file=default_yaml_file):
+        golbal_options = OPTIONS.get()
         self._init_with_config_files_and_env(yaml_file)
         logger.debug("Config loading done.")
         self._update()
+        golbal_options.update(OPTIONS.get())
 
     def _update(self):
         # logger.info("Config loading done.")
diff --git a/metagpt/const.py b/metagpt/const.py
index f6f64a27d..10de0ff66 100644
--- a/metagpt/const.py
+++ b/metagpt/const.py
@@ -17,12 +17,18 @@ from loguru import logger
 
 import metagpt
 
-OPTIONS = contextvars.ContextVar("OPTIONS")
+OPTIONS = contextvars.ContextVar("OPTIONS", default={})
 
 
 def get_metagpt_package_root():
     """Get the root directory of the installed package."""
     package_root = Path(metagpt.__file__).parent.parent
+    for i in (".git", ".project_root", ".gitignore"):
+        if (package_root / i).exists():
+            break
+    else:
+        package_root = Path.cwd()
+
     logger.info(f"Package root set to {str(package_root)}")
     return package_root
 
diff --git a/metagpt/roles/role.py b/metagpt/roles/role.py
index b07541b09..1e7ebf711 100644
--- a/metagpt/roles/role.py
+++ b/metagpt/roles/role.py
@@ -27,6 +27,7 @@ from pydantic import BaseModel, Field
 
 from metagpt.actions import Action, ActionOutput
 from metagpt.actions.action_node import ActionNode
+from metagpt.actions.add_requirement import UserRequirement
 from metagpt.llm import LLM, HumanProvider
 from metagpt.logs import logger
 from metagpt.memory import Memory
@@ -126,7 +127,17 @@ class RoleContext(BaseModel):
         return self.memory.get()
 
 
-class Role:
+class _RoleInjector(type):
+    def __call__(cls, *args, **kwargs):
+        instance = super().__call__(*args, **kwargs)
+
+        if not instance._rc.watch:
+            instance._watch([UserRequirement])
+
+        return instance
+
+
+class Role(metaclass=_RoleInjector):
     """Role/Agent"""
 
     def __init__(self, name="", profile="", goal="", constraints="", desc="", is_human=False):
@@ -141,6 +152,7 @@ class Role:
         self._rc = RoleContext()
         self._subscription = {any_to_str(self), name} if name else {any_to_str(self)}
 
+
     def _reset(self):
         self._states = []
         self._actions = []
diff --git a/metagpt/schema.py b/metagpt/schema.py
index 758149efa..5aec378e4 100644
--- a/metagpt/schema.py
+++ b/metagpt/schema.py
@@ -121,6 +121,10 @@ class Message(BaseModel):
         :param send_to: Specifies the target recipient or consumer for message delivery in the environment.
         :param role: Message meta info tells who sent this message.
         """
+        if not cause_by:
+            from metagpt.actions import UserRequirement
+            cause_by = UserRequirement
+
         super().__init__(
             id=uuid.uuid4().hex,
             content=content,
diff --git a/setup.py b/setup.py
index 4dd453b3d..730fffd35 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@ with open(path.join(here, "requirements.txt"), encoding="utf-8") as f:
 
 setup(
     name="metagpt",
-    version="0.4.0",
+    version="0.5.0",
     description="The Multi-Role Meta Programming Framework",
     long_description=long_description,
     long_description_content_type="text/markdown",