Claude Code Pro weekly usage reportedly dropped sharply without announcement after the Sonnet 4.5 release.

A source-linked change to usage terms or limits.

Exact effect time unavailable. The date below is when this change was announced, not proof that every account changed at that moment. This record is classified as completed; follow its sources for the available evidence.

What happened

Provider / product: Anthropic / Claude Code
Plans: pro
Announced: Sep 29, 2025
Effective: Exact time not established
Audience: paid · Pro subscribers (community reports)
Model or pool: Not specified

Primary evidence and context

Follow the original posts or documentation. Announcement posts and completion evidence can say different things; check each source's claim.

Source 1: github.com ↗community

Research notes

Following the Sonnet 4.5 release, 30+ GitHub reports described a sharp unannounced drop in effective weekly Claude Code usage; no Anthropic response was found.