- Endpoint rewrite: the driver now connects to the configured host AND port (scheme
match, advertised path kept) instead of the server-advertised URL — fixes NAT/port-map
upstreams and lets an in-test proxy carry the session (SDK SelectEndpoint rule).
- TcpStallProxy + OpcUaClientDriverStallWireTests: the in-place blip (#670) is now
wire-tested on loopback — one Bad, frozen read stamp, same session, identical value
republished Good, a post-recovery change arrives, no source-time regression after
the SDK's late backlog flush.
- Defect found by that test, fixed: a change published right after a stall rode a
Publish response the SDK timed out and never republished, leaving the node Good on
the pre-change value indefinitely. New trailing reconcile read (Timeout +
KeepAliveInterval after recovery) publishes any Good value newer than the last
accepted one, through the replay guard's mark.
- IDriverConnectionLossSource (Core.Abstractions): opt-in definitive-loss signal.
DriverInstanceActor attaches in PreStart / detaches in PostStop and turns a raise
into a disconnect only while Connected. OpcUaClient raises once per session on
keep-alive BadSessionIdInvalid/BadSessionClosed/BadSessionNotActivated/
BadServerHalted (measured: the SDK never re-opens a halted channel) or a dropped
subscription; ambiguous codes stay with the #527 watchdog.
- Replay guard: one Information summary per recovery when the window closes
("dropped N late notifications across M refs"), with a timer so quiet
subscriptions log it too.
- ReconnectPeriod deleted (options, AdminUI form, docs, tests); stored configs that
carry reconnectPeriod still parse in the factory, probe and browser.
- Docs: OpcUaClient.md, DriverLifecycle.md, driver-specs.md, CLAUDE.md.
NamespaceMap now carries a RawPath -> upstream node id table built from the
deployed RawTagEntry list (reads each tag's TagConfig.nodeId, threads
WriteIdempotent). Under v3 the read/write/subscribe/history reference handed to
the driver is the tag's RawPath identity; the driver resolves it in two stages:
RawPath -> nodeId string (instance TryResolve) -> live NodeId re-bound against
the session (static TryResolve). Alarm ConditionId + event-history sourceName
stay on the direct session parse (they are upstream node ids, not RawPaths).
- Options: add IReadOnlyList<RawTagEntry> RawTags (Contracts now refs Core.Abstractions).
- Factory: RawTags binds straight into options (no separate DTO); EndpointUrl kept.
- Browser: unchanged (emits neutral BrowseNode DTOs, no TagConfig FullName key).
- Tests: 138 green; new RawPath resolution + factory-binding coverage; migrated
the stale-session ReadRaw test to author a resolving RawTag.
Contracts + Driver + Browser build clean (0 warn). Wave C wires endpoint->DeviceConfig
and the deploy artifact that populates RawTags.
Joseph Doherty