diff --git a/README.md b/README.md
index cdfb7327..96295d4b 100644
--- a/README.md
+++ b/README.md
@@ -125,13 +125,17 @@ The list below captures what may need to add depending on your usage:
 Life cycle events are directly managed on the application controller
 and are prefixed with `on_*`.
 
+* **on_server_start**     : Executed at server.start() call while passing the server as argument.
+* **on_server_bind**      : WSLinkServer is getting bound to trame so you can attach your own routes. Its instance will be passed as argument to callback.
 * **on_server_ready**     : All protocols initialized and available for client to connect
 * **on_client_connected** : Connection established to server
 * **on_client_exited**    : Linked to browser "beforeunload" event
 * **on_server_exited**    : Trame is exiting its event loop
 
-* **on_server_reload**    : If callback registered it is used for reloading server side modules
+* **on_error**            : JS error forwarded (msg:str) on the python
+* **on_exception**        : Server exception occurred when interacting with the UI. The exception instance is provided as arg.
 
+* **on_server_reload**    : If callback registered it is used for reloading server side modules
 
 ## Reserved state entries
 
diff --git a/README.rst b/README.rst
index 2ded77c9..a6e0f727 100644
--- a/README.rst
+++ b/README.rst
@@ -117,6 +117,8 @@ Life cycle callbacks
 Life cycle events are directly managed on the application controller
 and are prefixed with `on_*`.
 
+* **on_server_start**     : Executed at server.start() call while passing the server as argument.
+* **on_server_bind**      : WSLinkServer is getting bound to trame so you can attach your own routes. Its instance will be passed as argument to callback.
 * **on_server_ready**     : All protocols initialized and available for client to connect
 * **on_client_connected** : Connection established to server
 * **on_client_exited**    : Linked to browser "beforeunload" event
@@ -124,7 +126,7 @@ and are prefixed with `on_*`.
 * **on_server_exited**    : Trame is exiting its event loop
 * **on_server_reload**    : If callback registered it is used for reloading server side modules
 * **on_error**            : A JavaScript error has occurred in the client, can be used to do something on the server when this occurs
-
+* **on_exception**        : Server exception occurred when interacting with the UI. The exception instance is provided as arg.
 
 Reserved state entries
 --------------------------------------------------------------------------
diff --git a/examples/validation/decorators/default_class_decorator.py b/examples/validation/decorators/default_class_decorator.py
index 8af9688a..74f660d2 100644
--- a/examples/validation/decorators/default_class_decorator.py
+++ b/examples/validation/decorators/default_class_decorator.py
@@ -36,7 +36,7 @@ def on_ready(self, *args, **kwargs):
 
     @life_cycle.on_error
     def on_error(self, message):
-        print(f"A JS error occured: {message}")
+        print(f"A JS error occurred: {message}")
 
     def ui(self):
         with SinglePageLayout(self.server) as layout: