📝 Update release notes

docs/en/docs/release-notes.md

@@ -2,13 +2,63 @@
 
 ## Latest Changes
 
-* ✨ Add support for `lifespan` async context managers (superseding `startup` and `shutdown` events). PR [#2944](https://github.com/tiangolo/fastapi/pull/2944) by [@uSpike](https://github.com/uSpike).
+### Features
+
+* ✨ Add support for `lifespan` async context managers (superseding `startup` and `shutdown` events). Initial PR [#2944](https://github.com/tiangolo/fastapi/pull/2944) by [@uSpike](https://github.com/uSpike).
+
+Now, instead of using independent `startup` and `shutdown` events, you can define that logic in a single function with `yield` decorated with `@asynccontextmanager` (an async context manager).
+
+For example:
+
+```Python
+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI
+
+
+def fake_answer_to_everything_ml_model(x: float):
+    return x * 42
+
+
+ml_models = {}
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    # Load the ML model
+    ml_models["answer_to_everything"] = fake_answer_to_everything_ml_model
+    yield
+    # Clean up the ML models and release the resources
+    ml_models.clear()
+
+
+app = FastAPI(lifespan=lifespan)
+
+
+@app.get("/predict")
+async def predict(x: float):
+    result = ml_models["answer_to_everything"](x)
+    return {"result": result}
+```
+
+**Note**: This is the recommended way going forward, instead of using `startup` and `shutdown` events.
+
+Read more about it in the new docs: [Advanced User Guide: Lifespan Events](https://fastapi.tiangolo.com/advanced/events/).
+
+### Docs
+
+* ✏ Fix formatting in `docs/en/docs/tutorial/metadata.md` for `ReDoc`. PR [#6005](https://github.com/tiangolo/fastapi/pull/6005) by [@eykamp](https://github.com/eykamp).
+
+### Translations
+
 * 🌐 Tamil translations - initial setup. PR [#5564](https://github.com/tiangolo/fastapi/pull/5564) by [@gusty1g](https://github.com/gusty1g).
 * 🌐 Add French translation for `docs/fr/docs/advanced/path-operation-advanced-configuration.md`. PR [#9221](https://github.com/tiangolo/fastapi/pull/9221) by [@axel584](https://github.com/axel584).
 * 🌐 Add French translation for `docs/tutorial/debugging.md`. PR [#9175](https://github.com/tiangolo/fastapi/pull/9175) by [@frabc](https://github.com/frabc).
 * 🌐 Initiate Armenian translation setup. PR [#5844](https://github.com/tiangolo/fastapi/pull/5844) by [@har8](https://github.com/har8).
-* ✏ Fix formatting in `docs/en/docs/tutorial/metadata.md` for `ReDoc`. PR [#6005](https://github.com/tiangolo/fastapi/pull/6005) by [@eykamp](https://github.com/eykamp).
 * 🌐 Add French translation for `deployment/manually.md`. PR [#3693](https://github.com/tiangolo/fastapi/pull/3693) by [@rjNemo](https://github.com/rjNemo).
+
+### Internal
+
 * 👷 Update translation bot messages. PR [#9206](https://github.com/tiangolo/fastapi/pull/9206) by [@tiangolo](https://github.com/tiangolo).
 * 👷 Update translations bot to use Discussions, and notify when a PR is done. PR [#9183](https://github.com/tiangolo/fastapi/pull/9183) by [@tiangolo](https://github.com/tiangolo).
 * 🔧 Update sponsors-badges. PR [#9182](https://github.com/tiangolo/fastapi/pull/9182) by [@tiangolo](https://github.com/tiangolo).