v0.7.5 Pre-release thread

[adhami3310]

Please report any problems you encounter in this discussion thread or as separate issues on reflex-dev/reflex.

pip install 'reflex~=0.7.5a'

Schedule

2025-03-27 16:10 PST: 0.7.5a1 pre-release published for testing
2025-03-31: Planned Public release of 0.7.5

Release Notes

NextJS back at latest version

As we have had more bugs related to the downgrade, we now have upgraded it back and disable turbopack by default. You can overwrite nextjs version with NEXTJS_VERSION but it is very much NOT SUPPORTED. Expect bugs when you do so.

• expose NEXTJS_VERSION and upgrade nextjs by @adhami3310 in expose NEXTJS_VERSION and upgrade nextjs #5039
• warn users about nextjs version by @adhami3310 in warn users about nextjs version #5045

Event handlers as Vars

Not flashy, but you can use handlers in conds and such

on_click=rx.cond(
  SnakeState.game_over,
  SnakeState.start_game,
  SnakeState.pause_game
)

This only works when the event handler takes no arguments, however, you should use the much more reliable:

on_click=rx.cond(
  SnakeState.game_over,
  SnakeState.start_game(),
  SnakeState.pause_game()
)

Where you call the event handlers. You can use lambda syntax to provide arguments for them.

• allow event handlers to be turned into vars by @adhami3310 in allow event handlers to be turned into vars #5032

Expose Socket constants for further customizability

Exposes REFLEX_SOCKET_MAX_HTTP_BUFFER_SIZE, REFLEX_SOCKET_INTERVAL, REFLEX_SOCKET_TIMEOUT to be modified.

• expose socket constants by @adhami3310 in expose socket constants #5022

Add support for ndigits for dunder method round for int vars

round(State.int_field, 3)

• add ndigits to round dunder method by @adhami3310 in add ndigits to round dunder method #5019

Expose run_in_thread

rx.run_in_thread is a simple wrapper around asyncio to run a function in a different thread.

• promote run_in_thread from experimental by @Lendemor in promote run_in_thread from experimental #5016

Allow None as children of components

Previously we errored, but now we allow it, it doesn't render to anything.

• allow none as a child of components by @adhami3310 in allow none as a child of components #5043

Allow arguments for rx.memo event handlers

@rx.memo
def counter(on_text: rx.EventHandler[rx.event.passthrough_event_spec(str)]):
    return rx.hstack(
        rx.button("Increment", on_click=on_text("Increment")),
        rx.button("Decrement", on_click=on_text("Decrement")),
    )


def index():
    return rx.vstack(rx.text("Counter"), counter(on_text=rx.console_log))

You can even define your own event spec

def hello_who(who: rx.Var[str]) -> tuple[rx.Var[str]]:
    return (rx.Var.create(f"Hello, {who}!"),)


@rx.memo
def counter(on_text: rx.EventHandler[hello_who]):
    return rx.hstack(
        rx.button("Masen", on_click=on_text("Masen")),
        rx.button("Not Masen", on_click=on_text("Not Masen")),
    )


def index():
    return rx.vstack(rx.text("Who Are You?"), counter(on_text=rx.console_log))

• allow arguments to be passed to rx memo event handlers by @adhami3310 in allow arguments to be passed to rx memo event handlers #5021

Bugfixes

• load script directory from config [ENG-5131] by @adhami3310 in load script directory from config [ENG-5131] #5020
• copy styles to the correct dir by @masenf in copy styles to the correct dir #5024
• fix wrong domain for gallery backend by @adhami3310 in fix wrong domain for gallery backend #5036
• make sure to str the value in console log by @adhami3310 in make sure to str the value in console log #5030
• use package path for dynamic icon by @adhami3310 in use package path for dynamic icon #5028
• use granian features to improve hot reload by @adhami3310 in use granian features to improve hot reload #5023
• Khaleel/eng 5281 typeerror unsupported type ellipsis for guess type by @adhami3310 in Khaleel/eng 5281 typeerror unsupported type ellipsis for guess type #5046
• fix cert errors for package install by @adhami3310 in fix cert errors for package install #5050

Chores

• bump to 0.7.5dev by @adhami3310 in bump to 0.7.5dev #5018
• Improve AppHarness behavior when app already exists in a relative directory by @masenf in Improve AppHarness behavior when app already exists in a relative directory #5025
• make test_call_script more reliable by @adhami3310 in make test_call_script more reliable #5038
• add integration test for icons by @adhami3310 in add integration test for icons #5037
• make pyright happier by @adhami3310 in make pyright happier #5006
• fix iter parent class method by @Lendemor in fix iter parent class method #5044

Full Changelog: v0.7.4...v0.7.5

[ikuV]

custom next js version use gonna be nice. perfect for testing components for compatibility

[adhami3310]

0.7.5 was released