Streak: Weekly streak reset during year transition

Hi, I’d like to report a bug regarding the streak counter for habits with a weekly goal. The issue occurred during the transition between 2025 and 2026.

Device: iPhone 14 Pro Max

OS version: iOS 26.1

Related feature: Habit streak / Weekly goals

Steps to reproduce:

1. Create a new habit with a goal of 3 times per week.

2. Set the start date in the previous year (2025).

3. Log successful days across the New Year period (e.g., Dec 29, 2025; Jan 2, 2026; and Jan 4, 2026).

Expected result: The streak should continue (7+ days), as the weekly goal of 3 completions was met within the calendar week.

Actual result: The streak reset to 0 days. It appears the system fails to carry over the streak when the week spans across two different years.

I have attached screenshots of my habit calendar and the current streak status to help you visualize the discrepancy.

I really enjoy the app, so I hope this can be fixed to keep my progress on track. Please let me know if you need any further details from my side.