# Claude Platform Claude Platform release notes — June 26, 2026

- Product: Claude Platform (https://whatsnew.fyi/product/claude-platform)
- Vendor: Anthropic
- Date: 2026-06-26
- Original notes: https://platform.claude.com/docs/en/release-notes/overview#june-26-2026
- Permalink: https://whatsnew.fyi/product/claude-platform/releases/2026-06-26-claude-platform-release-notes-june-26-2026

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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We've raised rate limits across the Claude API. Claude Sonnet and Claude Haiku rate limits now match Claude Opus at every usage tier, and usage tiers have been consolidated into three: Start, Build, a…

- **changed** — Rate limits have been raised across the Claude API, with Claude Sonnet and Claude Haiku rate limits now matching Claude Opus at every usage tier
- **changed** — Usage tiers have been consolidated into three tiers: Start, Build, and Scale