v0.8.14 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~=0.8.14a'

Schedule

2025-10-02 11:00 PT: 0.8.14a1 pre-release published for testing
2025-10-03 13:25 PT: 0.8.14a2 pre-release published for testing
2025-10-06: Planned Public release of 0.8.14

Release Notes

Revert ColorVar having .color .alpha .shade

ColorVar being a non primitive string (new String) has proven more problematic than it is useful.

• call to_string on colors coming into style by @adhami3310 in call to_string on colors coming into style #5836
• revert color handling by @adhami3310 in revert color handling #5844

Add --single-port option to reflex run --env prod

Since the app is compiled, there is no need for using a node server to run the frontend and have two ports. You can simply use reflex run --env prod --single-port to host the frontend and backend on the same port.

It's still recommended to serve your frontend on a CDN if possible. Although if you're going for really simple deployments, one port will suffice!

• single port prod by @adhami3310 in single port prod #5839

Treat on_drop=State.handle_upload, as on_drop=State.handle_upload(rx.upload_files(upload_id))

the following:

rx.upload(
    id="upload",
    on_drop =State.on_upload,
)

would be converted to

rx.upload(
    id="upload",
    on_drop =State.on_upload(rx.upload_files("upload")),
)

• improve upload state handlers ergonomics by @adhami3310 in improve upload state handlers ergonomics #5843

Add primitive radix dialog

It's unstyled, but it makes it easier to use with tailwind and such if you aren't interested in radix themes.

def dialog():
    return rx.radix.primitives.dialog.root(
        rx.radix.primitives.dialog.trigger(...),
        rx.radix.primitives.dialog.portal(
            rx.radix.primitives.dialog.overlay(...),
            rx.radix.primitives.dialog.content(
                rx.radix.primitives.dialog.title(...),
                rx.radix.primitives.dialog.description(...),
                ...,
                rx.radix.primitives.dialog.close(...)
            )
        )
    )

The interface looks almost identical to rx.dialog.

• Add primitive radix dialog by @adhami3310 in Add primitive radix dialog #5848

Bugfixes

• replace click exit with system exit by @adhami3310 in replace click exit with system exit #5841
• correctly handle backend rx.Field default values by @adhami3310 in correctly handle backend rx.Field default values #5833
• update slider event spec by @adhami3310 in update slider event spec #5828
• remove toaster outside of radix by @adhami3310 in remove toaster outside of radix #5827
• check return code before parsing version by @adhami3310 in check return code before parsing version #5845
• make indexing more null friendly by @adhami3310 in make indexing more null friendly #5849
• handle upload id being a var in as event spec by @adhami3310 in handle upload id being a var in as event spec #5850

Chores

• Remove raciness from test_is_process_on_port_concurrent_access by @masenf in Remove raciness from test_is_process_on_port_concurrent_access #5826
• 0814dev by @adhami3310 in 0814dev #5834
• suppress eval warnings by @adhami3310 in suppress eval warnings #5847

Full Changelog: v0.8.13...release/reflex-0.8.14

[bertbarabas]

The new rx.upload on_drop parameter style doesn't seem to work if we use an attribute of an object provided by a foreach instead of a constant.

This works:

        id=required_file.file_id,
        on_drop=ApplicationState.handle_drop(
            required_file.file_id,
        ),

This:

        id=required_file.file_id,
        on_drop=ApplicationState.handle_drop,

generates this exception during compile:

reflex.utils.exceptions.VarTypeError: Cannot convert Var 'requiredFileRxMemo["file_id"]' to bool for use with `if`, `and`, `or`, and `not`. 
Instead use `rx.cond` and bitwise operators `&` (and), `|` (or), `~` (invert).