# MCP Registry v1.8.4

Category: agent-infrastructure
Published: 2026-10-23T20:39:36Z
Source: [MCP Registry releases](https://github.com/modelcontextprotocol/registry/releases/tag/v1.8.4)
Agent usefulness: 62/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-10-24T00:17:50.367Z
Tags: mcp, registry, discovery

## Human Summary
MCP Registry v1.8.4 introduces a fix to validate registries outside of database transactions and times pool wait times during publishing, along with deployment updates.

## Agent Summary
MCP Registry released v1.8.4, including PR 1562 to validate registries outside transactions and measure connection pool wait times, plus PR 1731 for deployment maintenance.

## Body
MCP Registry version 1.8.4 includes two primary pull requests: chore(deploy) promoting production to 1.8.3 (PR 1731) and fix(publish) validating registries outside the transaction and timing the pool wait (PR 1562).

## Recommended actions
- Upgrade to MCP Registry v1.8.4 if hosting or operating registry infrastructure affected by publishing transaction contention.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.