v0.47.6

🌟 Release Highlights

This release focuses on expression replacement reliability, ARM64 platform support, and improved model routing — making workflows more robust across a wider range of environments.

✨ What's New

• ARM64 Support (#17331) — Copilot smoke tests now run on ubuntu-24.04-arm, validating workflow compatibility on ARM64 runners.
• Native Model Routing (#17296) — Model selection is now routed to engines via native CLI environment variables, improving compatibility with engine-specific model configuration.
• JavaScript Global Object Shim (#17353) — Core global object shim implemented for JavaScript files, enabling better runtime compatibility in sandboxed environments.
• Improved Output Preview (#17315) — Replaced the Copilot --share flag with a JS log parser for output preview, providing more reliable workflow output visibility.

🐛 Bug Fixes & Improvements

• Expression Replacement Robustness (#17330, #17332) — Fixed two critical bugs: expressions are now replaced in all occurrences (not just the first), and a double-substitution bug in runtime import expression replacement has been resolved.
• Cache Memory Fix (#17349) — GH_AW_WORKFLOW_ID_SANITIZED is now correctly set in the update_cache_memory job environment, preventing cache key mismatches.
• GFM HTML in Issue Updates (#17346) — Inline HTML tags (e.g., <details>, <summary>) are now preserved when updating issue bodies via safe-outputs.
• Base Ref Handling (#17370) — Workflows now correctly use github.base_ref || github.ref_name for consistent branch targeting across push and pull_request events.
• Maintenance Release Tag (#17316) — Fixed agentics-maintenance incorrectly ignoring --action-tag when running in release mode.
• System Prompt Efficiency (#17314) — System prompts for /session and /md are now compressed and XML-wrapped, reducing token usage; multi-cache placeholder bug also resolved.
• Safe Outputs Auto-Targeting (#17350) — Clarified behavior for add_comment, add_labels, and add_reviewer when no workflow context is available, preventing silent failures.

📚 Documentation

• Developer documentation consolidated (v2.6) and network.md trimmed by 21% for clarity.
• Slides updated from "Research Preview" to Technical Preview status.

---

For complete details, see CHANGELOG.

Generated by Release

---

What's Changed

• Route model to engine via native CLI environment variables by @Copilot in #17296
• Fix agentics-maintenance ignoring --action-tag in release mode by @Copilot in #17316
• [instructions] Sync github-agentic-workflows.md with v0.40.1 by @github-actions[bot] in #17319
• [docs] Consolidate developer documentation v2.6 (2026-02-20) by @github-actions[bot] in #17321
• [docs] docs: remove bloat from network.md (21% line reduction) by @github-actions[bot] in #17327
• Copilot/update smoke labels by @pelikhan in #17329
• Compress and XML-wrap system prompts for /session and /md; fix multi-cache placeholder bug by @Copilot in #17314
• feat: add Copilot ARM64 smoke test on ubuntu-24.04-arm by @Mossaka in #17331
• Remove Copilot --share flag; use JS log parser for output preview by @Copilot in #17315
• [safeoutputs] Clarify auto-targeting behavior for add_comment, add_labels, and add_reviewer when no workflow context exists by @Copilot in #17350
• fix: add GH_AW_WORKFLOW_ID_SANITIZED to update_cache_memory job env by @Copilot in #17349
• Allow GFM inline HTML tags in update-issue body sanitization by @Copilot in #17346
• refactor: eliminate duplicate utilities and simplify engine domain API by @Copilot in #17348
• [WIP] Implement core global object shim for JavaScript files by @Copilot in #17353
• Apply documentation site CSS styles to slides by @Copilot in #17367
• 🔧 Fix base ref to use github.base_ref || github.ref_name in all workflows by @dsyme in #17370
• Update slides: Research Preview → Technical Preview by @Copilot in #17369
• fix: improve slides contrast and font sizes by @Copilot in #17372
• 🔧 Fix expression replacement to handle all occurrences by @dsyme in #17330

Full Changelog: v0.47.5...v0.47.6