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---
draft: false
date: 2023-03-09
categories:
- Release
title: "Textual 0.14.0 shakes up posting messages"
authors:
- willmcgugan
---
# Textual 0.14.0 shakes up posting messages
Textual version 0.14.0 has landed just a week after 0.13.0.
!!! note
We like fast releases for Textual. Fast releases means quicker feedback, which means better code.
What's new?
<!-- more -->
We did a little shake-up of posting [messages](../../guide/events.md) which will simplify building widgets. But this does mean a few breaking changes.
There are two methods in Textual to post messages: `post_message` and `post_message_no_wait`. The former was asynchronous (you needed to `await` it), and the latter was a regular method call. These two methods have been replaced with a single `post_message` method.
To upgrade your project to Textual 0.14.0, you will need to do the following:
- Remove `await` keywords from any calls to `post_message`.
- Replace any calls to `post_message_no_wait` with `post_message`.
Additionally, we've simplified constructing messages classes. Previously all messages required a `sender` argument, which had to be manually set. This was a clear violation of our "no boilerplate" policy, and has been dropped. There is still a `sender` property on messages / events, but it is set automatically.
So prior to 0.14.0 you might have posted messages like the following:
```python
await self.post_message(self.Changed(self, item=self.item))
```
You can now replace it with this simpler function call:
```python
self.post_message(self.Change(item=self.item))
```
This also means that you will need to drop the sender from any custom messages you have created.
If this was code pre-0.14.0:
```python
class MyWidget(Widget):
class Changed(Message):
"""My widget change event."""
def __init__(self, sender:MessageTarget, item_index:int) -> None:
self.item_index = item_index
super().__init__(sender)
```
You would need to make the following change (dropping `sender`).
```python
class MyWidget(Widget):
class Changed(Message):
"""My widget change event."""
def __init__(self, item_index:int) -> None:
self.item_index = item_index
super().__init__()
```
If you have any problems upgrading, join our [Discord server](https://discord.gg/Enf6Z3qhVr), we would be happy to help.
See the [release notes](https://github.com/Textualize/textual/releases/tag/v0.14.0) for the full details on this update.
|
