●BILLING — Day two after the Jun 15 change: Agent SDK, headless runs, GitHub Actions, and third-party agents now bill against separate monthly credits ($20/$100/$200) at full API rates with no rollover, making first-day cost measurements the basis for any rework●REGULATED — TCS partnered with Anthropic to bring Claude to banks, airlines, and other regulated industries, while DXC integrates Claude into the core systems those sectors rely on●RETIRED — Sonnet 4 and Opus 4 left the API on Jun 15; confirm via your logs that scripts referencing them have moved to the latest generation such as Opus 4.8●EXPORT — Claude Fable 5 and Mythos 5 remain suspended under a US export-control directive (since Jun 12); Anthropic says it is working to restore access●SAFE — Only the two new Mythos-class models are affected; every other model including Opus 4.8 keeps running normally●SUBAGENTS — Claude Code sub-agents can spawn their own sub-agents up to five levels deep, widening the design space for multi-stage delegation●BILLING — Day two after the Jun 15 change: Agent SDK, headless runs, GitHub Actions, and third-party agents now bill against separate monthly credits ($20/$100/$200) at full API rates with no rollover, making first-day cost measurements the basis for any rework●REGULATED — TCS partnered with Anthropic to bring Claude to banks, airlines, and other regulated industries, while DXC integrates Claude into the core systems those sectors rely on●RETIRED — Sonnet 4 and Opus 4 left the API on Jun 15; confirm via your logs that scripts referencing them have moved to the latest generation such as Opus 4.8●EXPORT — Claude Fable 5 and Mythos 5 remain suspended under a US export-control directive (since Jun 12); Anthropic says it is working to restore access●SAFE — Only the two new Mythos-class models are affected; every other model including Opus 4.8 keeps running normally●SUBAGENTS — Claude Code sub-agents can spawn their own sub-agents up to five levels deep, widening the design space for multi-stage delegation