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Content-addressable hash IDs for stored messages enable deduplication in the database and allow LLM to represent trees of messages for forked conversations.
Introduces content-addressable hashing as the key architectural change, unlocking dedup and conversation forking. ✦ AI generated
Release author · Simon Willison's Weblog · 2026-07-30 · original ↗
The most important change is the use of content-addressable hash IDs for stored messages. This allows de-duplication in the database, and means that LLM can now represent trees of messages for forked conversations.
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- ·Most important architectural change introduced
- ·Hash IDs replace sequential IDs for stored messages
- ·Content itself determines the message address
- ·Enables database-level message deduplication
- ·LLM can represent trees of forked conversations
- ·Building block for branching dialogue state
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