Pro Users Blocked from Claude Code—Upgrade to $100 Max Plan or Lose Access

Anthropic quietly removed Claude Code from its $20 Pro tier, making it exclusive to the $100‑per‑month Max plan, which sparked fierce backlash from developers, prompted a clarification that the change is a limited test, and highlighted the volatility of AI SaaS pricing as usage patterns shift toward heavy compute‑intensive tasks.

AI SaaSAnthropicClaude Code

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Pro Users Blocked from Claude Code—Upgrade to $100 Max Plan or Lose Access

macrozheng

Dec 13, 2019 · Fundamentals

How China’s Number Portability Works: Behind the Scenes of Mobile Number Transfer

This article explains the technical foundations of China's number portability service, covering regulatory background, MDN and IMSI structures, call and SMS routing changes, the centralized portability database, and the impact on developers who previously relied on number‑prefix detection.

Developer ImpactIMSINumber Portability

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How China’s Number Portability Works: Behind the Scenes of Mobile Number Transfer