v0.7.2 Pre-release thread

[masenf]

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

pip install 'reflex~=0.7.2a'

Schedule

2025-03-06 14:30 PST: 0.7.2a1 pre-release published for testing
2025-03-11 12:20 PST: 0.7.2a2 pre-release published for testing
2025-03-11: Planned Public release of 0.7.2

Release Notes

New in 0.7.2a2

• Support event_actions in Form on_submit by @masenf in Support event_actions in Form on_submit #4912
• use noopener for window.open by @adhami3310 in use noopener for window.open #4933

What's Changed

Deprecated instantiating components through Component.init

You should have probably been doing .create.

• deprecate Component init by @adhami3310 in deprecate Component __init__ #4904

Overwrite rx.serializer

You can overwrite a serializer in reflex through @rx.serializer (previously we were erroring here), for example:

@serializer(to=str, overwrite=True) # overwrite flag here suppresses warning about overriding a builtin serializer as an intentional decision
def serialize_uuid(uuid: UUID) -> str:
    return "UUID" + str(uuid)

• serialize uuid and allow overwriting serializers by @adhami3310 in serialize uuid and allow overwriting serializers #4888

Use .f with Vars

You can now use the .f in f-strings with state Vars, for example:

class State(rx.State):
  value_of_pi: float = 3.14159265359

rx.text(f"{State.value_of_pi:.2f}")

Note that we now error when you provide a formatter that we don't support. PRs are welcome in extending the functionality beyond :.Xf.

• add support for .f format by @adhami3310 in add support for .f format #4855

React 19 post-mitigation

• migrate to new react 19 context api by @benedikt-bartscher in migrate to new react 19 context api #4849
• Override react-is@19.0.0 for recharts compatibility by @masenf in Override react-is@19.0.0 for recharts compatibility #4857
• remove temporary pin on radix ui themes by @adhami3310 in remove temporary pin on radix ui themes #4878
• make npm behave like bun through legacy-peer-deps by @adhami3310 in make npm behave like bun through legacy-peer-deps #4887
• update all radix deps by @adhami3310 in update all radix deps #4886
• opt for powershell as opposed to wmic by @adhami3310 in opt for powershell as opposed to wmic #4862

Compiler

• [ENG-4776] Write stateful pages marker earlier when should_compile is False by @masenf in [ENG-4776] Write stateful pages marker earlier when should_compile is False #4868
• reduce badge perf impact on pages by @Lendemor in reduce badge perf impact on pages #4872
• error when computed var fails to compile as opposed to giving a warning by @adhami3310 in put default values for computed var in case it errors #4867
• don't check types that have defaults after what is provided by @adhami3310 in don't check types that have defaults after what is provided #4889
• make array var sequence first by @adhami3310 in make array var sequence first #4881
• special case typed dict when getting value types of object vars by @adhami3310 in special case typed dict when getting value types of object vars #4866
• improve error messages for missing var operations by @adhami3310 in improve error messages for missing var operations #4869
• don't treat vars as their types for setting state fields by @adhami3310 in don't treat vars as their types for setting state fields #4861
• relax foreach to handle optional by @adhami3310 in relax foreach to handle optional #4901
• treat component prop class as immutable when provided a non literal var by @adhami3310 in treat component prop class as immutable when provided a non literal var #4898
• don't use _outer_type if we don't have to by @adhami3310 in don't use _outer_type if we don't have to #4528

Component changes

• simplify toast banner logic by @adhami3310 in simplify toast banner logic #4853
• fix autoscroll on stateful children by @adhami3310 in fix autoscroll on stateful children #4858
• unbreak accordion animations by @adhami3310 in unbreak accordion animations #4882
• scatter z-axis range fix by @tgberkeley in scatter z-axis range fix #4800
• Allow nested responsive container by @Alek99 in Allow nested responsive container #4903
• add recursive memoization to auto scroll if key is provided by @adhami3310 in add recursive memoization to auto scroll if key is provided #4859

Misc

• remove unused function by @Lendemor in remove unused function #4870
• [ENG-4783] Handle keyspace notif for Redis logical DB > 0 by @masenf in [ENG-4783] Handle keyspace notif for Redis logical DB > 0 #4877
• remove pynecone mention and update hosting readme by @adhami3310 in remove pynecone mention and update hosting readme #4874
• use lowercase datatypes typing by @adhami3310 in use lowercase datatypes typing #4843
• add a small guardrail in pyi_generator by @Lendemor in add a small guardrail in pyi_generator #4885
• fix pyright errors when importing from constants by @Lendemor in fix pyright errors when importing from constants #4907

Full Changelog: v0.7.1...release/reflex-0.7.2

[adhami3310]

release is published https://github.com/reflex-dev/reflex/releases/tag/v0.7.2