v0.8.4 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~=0.8.4a'

Schedule

2025-07-24 17:30 PDT: 0.8.4a1 pre-release published for testing
2025-07-28: Planned Public release of 0.8.4

Release Notes

Add query_parameters to router.url

It should be similar to router.page.query and be its long-term replacement.

• add origin and query parameters to router url by @adhami3310 in add origin and query parameters to router url #5596

Bugfixes

• Fix cookie JSON parsing by disabling automatic parsing (ENG-6818) by @devin-ai-integration[bot] in Fix cookie JSON parsing by disabling automatic parsing (ENG-6818) #5616
• check open ports for which address families we can bind to by @adhami3310 in check open ports for which address families we can bind to #5621
• snip source correctly for dep tracker by @adhami3310 in snip source correctly for dep tracker #5613
• fix FOUC on refresh by @Lendemor in fix FOUC on refresh #5608

Chores

• clean up app._compile by @adhami3310 in clean up app._compile #5599
• 4dev by @adhami3310 in 4dev #5611
• move httpx imports to function scope by @adhami3310 in move httpx imports to function scope #5612
• [ENG-6830] add timestamps to debug logs by @masenf in [ENG-6830] add timestamps to debug logs #5618

Full Changelog: v0.8.3...release/reflex-0.8.4

[adhami3310]

#5624