16.6.7

What's Changed

• Fix planner selecting Apollo @external key fields from non-resolving subgraphs by @michaelstaib in #10318
• Tolerate dispose failures when stopping ASB receive endpoints by @glen-84 in #10315
• Retry the Fusion archive open when a concurrent reader holds it by @glen-84 in #10324
• Merge same-named fields across fragments in MCP tool output schemas by @glen-84 in #10326
• Surface tool creation failures as unavailable MCP tools by @glen-84 in #10328
• Narrow fragment spreads to their type condition in MCP tool schemas by @glen-84 in #10329
• Fix UpdateTools forwarding in the aggregate MCP diagnostic events by @glen-84 in #10330
• Fix GeoJSON polygon coordinates dropping the exterior ring with holes by @glen-84 in #10345
• Fix GeoJSON MultiPolygon coordinates flattening each polygon's rings by @glen-84 in #10347
• Fix pruning of list-wrapped @require input types during composition by @michaelstaib in #10346
• Derive exported batching flags from the server's batching options by @glen-84 in #10368
• Create the schema export directory when it does not exist by @glen-84 in #10369
• Fix Utf8MemoryBuilder state after sealing or abandoning by @michaelstaib in #10378
• Resolve MCP handler services from the schema in stateless mode by @glen-84 in #10379
• Return 405 for MCP GET and DELETE in stateless mode by @glen-84 in #10380
• Keep generated Fusion operation names valid for every hash format by @glen-84 in #10388
• Reject non-ASCII characters in GraphQL name validation by @glen-84 in #10389
• Update Marten and pin MongoDB transitives to secure versions by @glen-84 in #10412
• Fix BindRuntimeType for byte[] and dictionaries nested in lists by @glen-84 in #10417
• Apply sorting after the resolver's Select projection by @glen-84 in #10422
• Apply explicit null variable defaults when variables are omitted by @glen-84 in #10424

Full Changelog: 16.6.6...16.6.7