v0.6.7 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~=0.6.7a'

Schedule

2024-12-13 16:20 PST: 0.6.7a1 pre-release published for testing
2024-12-16: Planned Public release of 0.6.7

Release Notes

Deprecations

• app.add_custom_404_page is deprecated -- use app.add_page(..., route="/404") instead.
• external prop of rx.redirect is renamed to is_external for consistency.
  • Unify is_external prop in rx.redirect and rx.link by @ElijahAhianyo in Unify is_external prop in rx.redirect and rx.link #4389

New Features

async_db_url and rx.asession

Builtin support for async database operations using sqlmodel. Proper usage requires the following:

1. Install greenlet for sqlalchemy to use async operations.
2. Install an appropriate async-capable database driver (aiosqlite, pyscopg)
3. Set ASYNC_DB_URL in the environment that references the async db driver. This should point to the same database as specified in DB_URL, which should still be set for handling alembic migrations and for use in computed vars, etc.
4. Use async with rx.asession() as asession -- await most operations on the asession.

Async DB operations are preferred in event handlers to avoid blocking other users on the server.

Var Operations for datetime values

• add datetime var comparison operations by @Lendemor in add datetime var comparison operations #4406

[Wrapping React] new deps and position fields in VarData

This allows for customization and control of where hooks are rendered relative to other hooks and memoized event handlers. Deps allows for specification of vars that memoized event handlers depend on.

• add deps and position field in VarData by @Lendemor in add deps and position field in VarData #4518

Improvements

More Efficient Database Connection Pooling

Each time rx.session was used, it was creating a new pool and not reusing connections.

• Reuse the sqlalchemy engine once it's created by @masenf in Reuse the sqlalchemy engine once it's created #4493

Linting

• enable RUF rules by @Lendemor in enable RUF rules #4465
• enable FURB rules by @Lendemor in enable FURB rules #4466
• add ERA rules to detect commented out code by @Lendemor in add ERA rules to detect commented out code #4472
• enable C4 rule by @Lendemor in enable C4 rule #4536
• enable PTH rule by @Lendemor in enable PTH rule #4476
• enable PERF rules by @Lendemor in enable PERF rules #4469
• style: prefer type() over class by @benedikt-bartscher in style: prefer type() over __class__ #4512

Performance

• minor pickle improvement by @benedikt-bartscher in minor pickle improvement #4499
• Avoid double JSON encode/decode for socket.io by @masenf in Avoid double JSON encode/decode for socket.io #4449
  • [ENG-4194] TypeError: Cannot create property 'token' on string by @masenf in [ENG-4194] TypeError: Cannot create property 'token' on string #4534
• simplify redis code, less redis calls by @benedikt-bartscher in simplify redis code, less redis calls #4456

Miscellaneous

• Avoid set_log_level foot gun by @masenf in Avoid set_log_level foot gun #4422
• [HOS-333] Send a "reload" message to the frontend after state expiry by @masenf in [HOS-333] Send a "reload" message to the frontend after state expiry #4442
• enable css props via wrapperStyle for recharts components by @Lendemor in enable css props via wrapperStyle for recharts components #4447
• add default value for text area by @Lendemor in add default value for text area #4462
• Do not mark unchanged backend var deps as dirty by @benedikt-bartscher in Do not mark unchanged backend var deps as dirty #4494
• add repr method to MutableProxy by @benedikt-bartscher in add __repr__ method to MutableProxy #4506
• [ENG-4135]Default rx.link href to # so underline prop works by @ElijahAhianyo in [ENG-4135]Default rx.link href to # so underline prop works #4509
• raise StateSerializationError if the state cannot be serialized by @benedikt-bartscher in raise StateSerializationError if the state cannot be serialized #4453
• disable polling by @benedikt-bartscher in disable polling #4441
• deprecate add_custom_404_page by @Lendemor in deprecate add_custom_404_page #4505
• [ENG-4100]Throw warnings when Redis lock is held for more than the allowed threshold by @ElijahAhianyo in [ENG-4100]Throw warnings when Redis lock is held for more than the allowed threshold #4522
• Wrap Checkbox component in Context Menu (partial fix for Wrapping some extra components inside of the Context Menu Component #4262) by @vydpnguyen in Wrap Checkbox component in Context Menu (partial fix for #4262) #4479
• Include step attribute in input by @Joodith in Include step attribute in input #4073
• improve StateManagerRedis error message by @benedikt-bartscher in improve StateManagerRedis error message #4444

Bug Fixes

• [ENG-4137] Handle generic alias passing inspect.isclass check by @masenf in [ENG-4137] Handle generic alias passing inspect.isclass check #4427
• fix mutable default in EventNamespace by @Lendemor in fix mutable default in EventNamespace #4420
• fix: state size was not checked for dill by @benedikt-bartscher in fix: state size was not checked for dill #4431
• allow for 'go.Figure | None' annotation in State by @Lendemor in allow for 'go.Figure | None' annotation in State #4426
  • follow up to allow for 'go.Figure | None' annotation in State #4426 by @Lendemor in follow up to #4426 #4436
• rx.upload must include _var_data from props by @masenf in rx.upload must include _var_data from props #4463
• fix: multiple mismatched-type-assignment fixes by @benedikt-bartscher in fix: multiple mismatched-type-assignment fixes #4482
• fix: migrate is_backend_only (deprecated) to EnvironmentVariables by @benedikt-bartscher in fix: migrate is_backend_only (deprecated) to EnvironmentVariables #4495
• Fix REFLEX_COMPILE_PROCESSES=0 by @masenf in Fix REFLEX_COMPILE_PROCESSES=0 #4523
• client_state: create Var from value when pushing from backend by @masenf in client_state: create Var from value when pushing from backend #4474
• fix: handle default_factory in get_attribute_access_type by @benedikt-bartscher in fix: handle default_factory in get_attribute_access_type #4517
• [ENG-4165] Consider default and default_factory for state vars by @masenf in [ENG-4165] Consider default and default_factory for state vars #4510
• Fix upload cancellation by @masenf in Fix upload cancellation #4527
• [ENG-4153]Use empty string for None values in rx.input and rx.el.input by @ElijahAhianyo in [ENG-4153]Use empty string for None values in rx.input and rx.el.input #4521
• [ENG-3583] Respect cors_allowed_origins for backend HTTP requests by @masenf in [ENG-3583] Respect cors_allowed_origins for backend HTTP requests #4533

Documentation

• Add production-one-port example by @masenf in Add production-one-port example #4489
• add issues templates by @Lendemor in add issues templates #4455
• [HOS-466]Fix deploy help text by @ElijahAhianyo in [HOS-466]Fix deploy help text #4508

Version Bumps

• bump ruff to 0.8 and relock poetry by @Lendemor in bump ruff to 0.8 and relock poetry #4451

Other Changes

• Remove invitation code logic from reflex logoutv2 by @ElijahAhianyo in Remove invitation code logic from reflex logoutv2 #4433
• test dynamic route flakiness (can't reproduce locally) by @benedikt-bartscher in test dynamic route flakiness (can't reproduce locally) #4496
• add test for color mode (initial and toggle) by @Lendemor in add test for color mode (initial and toggle) #4467
• Support python 3.13 by @Lendemor in Support python 3.13 #4206
• bump CI runners to macos-latest by @masenf in bump CI runners to macos-latest #4526
• raise_console_error during integration tests by @masenf in raise_console_error during integration tests #4535

New Contributors

• @vydpnguyen made their first contribution in Wrap Checkbox component in Context Menu (partial fix for #4262) #4479
• @Joodith made their first contribution in Include step attribute in input #4073

Full Changelog: v0.6.6.post3...release/reflex-0.6.7