●MCPSPEC — Claude now supports the MCP 2026-07-28 spec, which moves from a bidirectional stateful protocol to request/response so servers can run on serverless and edge infrastructure●AUTHZ — The new spec strengthens OAuth and OIDC authorization and splits Apps and Tasks out into versioned extensions●SDK400 — MCP SDK downloads passed 400 million per month, roughly a 4x increase over the year●FORK — /fork copies your conversation into a new background session, so you can try a second approach without pausing the first●MCPLOGIN — claude mcp login authenticates a configured MCP server from your shell instead of the interactive /mcp menu, and claude mcp logout clears the stored credentials●REVIEWBG — /code-review now runs in the background, so the conversation keeps moving while the review works●MCPSPEC — Claude now supports the MCP 2026-07-28 spec, which moves from a bidirectional stateful protocol to request/response so servers can run on serverless and edge infrastructure●AUTHZ — The new spec strengthens OAuth and OIDC authorization and splits Apps and Tasks out into versioned extensions●SDK400 — MCP SDK downloads passed 400 million per month, roughly a 4x increase over the year●FORK — /fork copies your conversation into a new background session, so you can try a second approach without pausing the first●MCPLOGIN — claude mcp login authenticates a configured MCP server from your shell instead of the interactive /mcp menu, and claude mcp logout clears the stored credentials●REVIEWBG — /code-review now runs in the background, so the conversation keeps moving while the review works