Claude change log

Latest brief:

What changed in Claude, by date: every Paralax brief about it, each linking its source where one exists.

Dated briefs

  1. Claude Citation Change Log: 463 of the Top 500 Domains, a Panel the Six-Source Cap Barely Touched

    A dated record of what Claude cites. Entry one: Claude reaches 463 of the 500 most-cited domains, second only to Perplexity among the engines measured.

  2. Claude's Shared Chats Got Indexed by Google Search — What It Signals for AI Discovery

    Claude shared chats got indexed by Google. The real signal: AI share links are now an indexable content class.

  3. Two Answer Engines Swapped Default Models in 72 Hours — Your AI Visibility Baseline Just Expired

    Gemini 3.6 Flash and Claude Opus 5 both became default models in one week. When the model changes, so does what it cites. Here's why.

    Primary source: blog.google

  4. Claude Fable 5 Returns. Model Access Is Becoming the AI Search Control Plane.

    Claude Fable 5 is back, but the real signal is model access becoming AI discovery infrastructure.

    Primary source: platform.claude.com

  5. Claude in Microsoft Foundry Makes Enterprise AI Retrieval Multi-Model by Default

    Claude in Microsoft Foundry turns enterprise AI retrieval into source-architecture work.

    Primary source: learn.microsoft.com

  6. Claude Tag Turns Slack Into an AI Search Surface

    Claude Tag makes Slack a shared AI answer surface, forcing brands to rethink internal source architecture.

    Primary source: anthropic.com

  7. Anthropic's invisible Claude guardrail is an AI search disclosure warning

    Anthropic's hidden Claude guardrail shows why AI search needs source and fallback disclosure.

    Primary source: platform.claude.com

Baseline measurements

Measured citation behavior for this engine, recorded release by release: Claude Citation Change Log: 463 of the Top 500 Domains, a Panel the Six-Source Cap Barely Touched