Release on September 4, 2026

Release

Areas Affected

Shackleton

Highlights

• Shackleton now avoids recommending actions it isn't actually able to carry out, so suggestions are more reliable and trustworthy.

What Changed

• Shackleton will no longer suggest actions that it isn't able to perform, so users only see recommendations that can actually be acted on. (Ticket)

---

Hotfixes Since Last Release

These fixes were deployed to production independently before this release — they are listed here for a complete record of what changed since the previous release.

September 1, 2026

• Fixed an issue where malformed data in email-sending requests could cause emails to fail; the system now automatically corrects this data so emails send successfully. (PR)

---

Chores

• offload SQS send_message to a worker thread in embedding paths (#497) (PR)
• Consume MCP domain catalog in the system prompt (#489) (PR)
• auto-sync hotfix from main to staging
• Mark empty or missing S3 file content unprocessable (#503) (PR)