microsoft/simplechat v0.235.025

v0.235.025

Repository: microsoft/simplechat

Tag: v0.235.025

Published: 2026-01-20T18:25:26Z

Prerelease: no

Release notes:

Bug Fixes

• Retention Policy Document Deletion Fix
• Fixed critical bug where retention policy execution failed when attempting to delete aged documents, while conversation deletion worked correctly.
• Root Cause 1: Documents use last_updated field, but query was looking for last_activity_at (used by conversations).
• Root Cause 2: Date format mismatch - documents store YYYY-MM-DDTHH:MM:SSZ but query used Python's .isoformat() with +00:00 suffix.
• Root Cause 3: Duplicate column in SELECT clause when partition_field='user_id' caused query errors.
• Root Cause 4: Activity logging called with incorrect deletion_reason parameter instead of additional_context.
• Files Modified: functions_retention_policy.py (query field names, date format, SELECT clause, activity logging).
• (Ref: delete_aged_documents(), retention policy execution, Cosmos DB queries)

• Retention Policy Scheduler Fix
• Fixed automated retention policy scheduler not executing at the scheduled time.
• Root Cause 1: Hour-matching approach was unreliable - only ran if check happened exactly during the execution hour (e.g., 2 AM), but 1-hour sleep intervals could miss the entire window.
• Root Cause 2: Check interval too long (1 hour) meant poor responsiveness and high probability of missing scheduled time.
• Root Cause 3: Code ignored the stored retention_policy_next_run timestamp, instead relying solely on hour matching.
• Solution: Now uses retention_policy_next_run timestamp for comparison, reduced check interval from 1 hour to 5 minutes, added fallback logic for missed executions.
• Files Modified: app.py (check_retention_policy() background task).
• (Ref: retention policy scheduler, background task, scheduled execution)