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feat(modules): the real MeshWeaver.AI update swaps live — added background services, keyed services, registry eviction (slice 7) - #6142
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rbuergi merged 1 commit intoOct 5, 2026
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…round services, keyed services, registry eviction (slice 7) - Hosted services are no longer part of a generation's root-service shape: one ModuleHostedServicesHost starts each module's CURRENT generation's hosted registrations; a swap stops the old set and starts the new one, whatever its size (the real AI N->N+1 differed by exactly one added hosted service). - Keyed root services are forwarded under the module's key (a module-owned key stays a blocker). - MeshContentTypeRegistry evicts a collectible context's types on Unloading — the heap dump's only strong root of the swapped-out AI generation. Measured locally on the incident pair (AI from Plugins b7a083d98~1 -> current): NodeType using ThreadPreparation.Group fails CS0117 on N, swap answers Live, compiles Ok on N+1, N collected. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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rbuergi
merged commit Oct 5, 2026
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Stacked on #6128. Policy
module-live-update-default; doc:Doc/Architecture/LiveModuleUpdate→ "What is shipped (slice 7)".What changed
ModuleHostedServicesHoststarts the CURRENT generation's set and a swap stops/starts whole sets.MeshContentTypeRegistryevicts types of a collectible context onUnloading(it was the only strong root of a swapped-out AI generation in a heap dump).Measured on the real incident pair (local run, not a CI test — CI cannot build two AI generations): MeshWeaver.AI from Plugins
b7a083d98~1as N and current as N+1, monolith test mesh. NodeType usingThreadPreparation.Group:CS0117on N; swap →Live(5 hubs recycled);Okon N+1; N collected. Before this PR the same swap answeredRestartRequired("root services changed shape", +1 hosted service), and after the shape fix N was retained by the registry.Tests:
ModuleRootServicesSwapTest.AnUpdateThatAddsAHostedService_SwapsLive_AndStartsIt;ContentTypeRegistryReleasesAnUnloadedGenerationTest(mutation-checked: fails with the eviction removed; control: a non-unloading context keeps its claim). Local Release: Compiler.Pipeline 1218/0 failed, Memex.Portal.Shared 2299/0, Graph 2508/0, Layout 616/0, Messaging.Hub 567/0, Hosting 1099/1 (known #6050 flakeAGatedSweepHearsItsOwnCompileTest).Not established: a thread running end to end (model round) on N+1; Blazor component static caches.
Pairs-with: none — no public type or member removed.
Implementers: none — no interface member added.
Mirror-sync: none — no i18n catalog change.
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