Release Notes

Decentralized Event Handlers

You can define some events outside of the state they belong to. This requires using the @event decorator and typing the first (state) argument with the state it belongs to. It gets used by its name as opposed to State. format.

import reflex as rx

class State(rx.State):
    field: int = 23

@rx.event
def update_field(state: State, new_value: int):
    state.field = new_value

def index() -> rx.Component:
    return rx.vstack(
        State.field,
        rx.button(
            "Update Field",
            on_click=update_field(321),
        ),
    )

app = rx.App()
app.add_page(index)

• decentralized event handlers by @adhami3310 in #5227

Escape hatch: change react version

In case react version upgrade broke your packages somehow, you can use the REACT_VERSION environment flag to change it. We don't support this flag indefinitely though, and it's very much not safe to set.

• add escape hatch for react version by @adhami3310 in #5225

Decimal support in Vars

You can now use decimal in state, but it converts it to a float when sending it to JS. Devin has contributed some of this PR before needing to intervene a bit.

• Add decimal.Decimal support to serializers and NumberVar by @devin-ai-integration in #5226

Style for dragging over upload component

on_drop for Upload should now support the list syntax. Also adds a style to the default component when a file is being dragged over it.

• Upload: drag_active_style and multiple on_drop specs by @masenf in #5207

[Regression Fix] Lifespan tasks

If you were using lifespan tasks along api or api_transformer, it might not have been running as expected. It should be fixed now.

• fix lifespan tasks regression by @Lendemor in #5218

This also fixes hot reload on Windows.

Bugfixes

• do not add requirementstxt if pyproject exists by @adhami3310 in #5185
• do not wrap dict in mutable proxy by @adhami3310 in #5193
• validate classname by @adhami3310 in #5204
• get back python-dotenv errors for environment env file by @adhami3310 in #5203
• fix ai template by @adhami3310 in #5202
• slicing a list is not a mutable proxy directly by @adhami3310 in #5221
• [ENG-5696] unwrap Var-typed annotations in @rx.memo signature by @masenf in #5223
• remove height and with from rx video by @adhami3310 in #5210

Chores

• 0710dev by @adhami3310 in #5195
• add python version for development by @adhami3310 in #5186
• use as posix by @adhami3310 in #5192
• bump deps after 079 by @adhami3310 in #5205
• remove frontend arg from needs_reinit by @adhami3310 in #5214
• move proxy classes into proxy.py by @adhami3310 in #5224
• remove simple page from codspeed by @adhami3310 in #5228
• lock uv update by @adhami3310 in #5238

New Contributors

• @devin-ai-integration made their first contribution in #5226

Full Changelog: v0.7.9...v0.7.10