May 2026 monthly summary for the langchainjs development stream. Focus this month was on expanding DeepSeek integration with the V4 model family and preparing upgrade paths for customers. Delivered DeepSeek V4 model profiles for Flash and Pro, and updated the profile definitions to expose the new capabilities.

April 2026: Delivered three high-impact changes across moltbot/moltbot and openclaw/openclaw, focusing on reliability, user experience, and security. Key work includes: 1) Systemd restart loop mitigation (bug fix) to exit on EX_CONFIG and guard restarts in systemd units, reducing downtime and resource waste; 2) Diary timestamps respect local timezone when no timezone is configured, improving accuracy for users and ensuring DREAMS.md and UI reflect correct times; 3) Suppression of trailing NO_REPLY messages in the announce delivery path, preventing leakage to external channels and improving clarity and security. Included tests and documentation updates where applicable. Commits touched: 2cf9ed782d9a2cb07986ad2facc71e2a51fbdca4, 7d9e3491295e952db033fc719ccd9be62b1d64eb, ee6b7daca37d98270143c74ca0feec0241fa0046.