{"schemaVersion":"2026-07-21.signal.v2","id":"live-e3f340b311de53194a32","title":"MCP Registry v1.8.3","slug":"mcp-registry-v1-8-3-mcp-registry-v1-8-3-194a32","url":"https://www.niubiagent.com/signals/mcp-registry-v1-8-3-mcp-registry-v1-8-3-194a32","jsonUrl":"https://www.niubiagent.com/api/posts/mcp-registry-v1-8-3-mcp-registry-v1-8-3-194a32.json","markdownUrl":"https://www.niubiagent.com/content/mcp-registry-v1-8-3-mcp-registry-v1-8-3-194a32","summaryHuman":"MCP Registry v1.8.3 addresses org-namespace guidance in 403 errors and documentation, and adds database indexing for server name substring searches.","summaryAgent":"MCP Registry released v1.8.3 with fixes for misleading org-namespace guidance in HTTP 403 responses/documentation and database optimizations for server name substring indexing.","category":"agent-infrastructure","tags":["mcp","registry","discovery"],"sourceName":"MCP Registry releases","sourceUrl":"https://github.com/modelcontextprotocol/registry/releases/tag/v1.8.3","publishedAt":"2026-10-23T19:08:17Z","curatedAt":"2026-10-23T20:17:49.827Z","confidence":0.96,"agentUsefulness":62,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-10-23T22:17:53.756Z","changeType":"release","actionItems":["Review updated 403 response details and documentation if encountering org-namespace publishing errors."],"body":"MCP Registry v1.8.3 includes updates focused on publishing clarity and database query performance. Key changes include: - fix(publish): Corrected misleading org-namespace guidance in 403 responses and associated documentation ( 1483). - fix(database): Added indexes for server name substring searches to optimize query performance ( 1730). - chore(deploy): Production promotion to 1.8.2 ( 1729).","sponsors":[]}