v0.8.6 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~=0.8.6a'

Schedule

2025-08-07 12:00 PDT: 0.8.6a1 pre-release published for testing
2025-08-11: Planned Public release of 0.8.6

Release Notes

Misc

• add fill handle to dataeditor by @adhami3310 in add fill handle to dataeditor #5673
• add rx.PropsBase shortcut by @Lendemor in add rx.PropsBase shortcut #5682
• Add SVG marker element support by @devin-ai-integration[bot] in Add SVG marker element support #5683
• allow leak and block detection on handlers by @Lendemor in allow leak and block detection on handlers #5620
• extract env json into its own file by @adhami3310 in extract env json into its own file #5658
• implement screenshot plugin by @adhami3310 in implement screenshot plugin #5691

Bugfixes

• fix: add missing size property to DynamicIcon class by @geekalaa in fix: add missing size property to DynamicIcon class #5665
• fix duplicate tab issue by @Lendemor in fix duplicate tab issue #4607
• fix: propagate frontend_path to base in vite.config.js by @tartansandal in fix: propagate frontend_path to base in vite.config.js #5677
• ENG-6769: Fix module app.app not found during on_load by @masenf in ENG-6769: Fix module app.app not found during on_load #5666
• make parent if it doesn't exist for cached procedure by @adhami3310 in make parent if it doesn't exist for cached procedure #5680
• Fiex: ensure cls.__dict__ compat w/ python3.14 by @xychelsea in Fiex: ensure cls.__dict__ compat w/ python3.14 #5684
• set background and color for error boundary by @adhami3310 in set background and color for error boundary #5687
• Close files after copying in upload_file by @maximvlah in Close files after copying in upload_file #5679

Chores

• Fix grammatical error in README: correct 'Our DALL·E. app has an even… by @ramansrivastava in Fix grammatical error in README: correct 'Our DALL·E. app has an even… #5661
• chore: add a badge to the social network Twitter by @Olexandr88 in chore: add a badge to the social network Twitter #5678
• 086dev by @adhami3310 in 086dev #5667
• install only the shell for app harness by @adhami3310 in install only the shell for app harness #5653
• uv sync for pyleak by @adhami3310 in uv sync for pyleak #5685

New Contributors

• @ramansrivastava made their first contribution in Fix grammatical error in README: correct 'Our DALL·E. app has an even… #5661
• @geekalaa made their first contribution in fix: add missing size property to DynamicIcon class #5665
• @Olexandr88 made their first contribution in chore: add a badge to the social network Twitter #5678
• @xychelsea made their first contribution in Fiex: ensure cls.__dict__ compat w/ python3.14 #5684

Full Changelog: v0.8.5...release/reflex-0.8.6