v1.19.0

Sink

• Fix Sinker.requestActiveStartBlock not being set when the handler implements SinkerSessionInitHandler, which previously caused ProgressMessageLastContiguousBlock to be incorrect for production-mode mapper stages.

Fixed

• Manifest: a foundational-store: input now accepts a hosted-store deployment id (a UUID), in addition to package name@version notation. Previously the deployment id was validated with the package-name regexp (^[a-zA-Z]...), which rejected any UUID starting with a digit, making real hosted stores impossible to reference.
• Server: tier1 forkable hub now logs under the tier1 logger instead of the generic bstream package logger, so processing block (and related hub) log lines are correctly attributed to the component (requires bstream hub.WithLogger).
• Server: per-block execution timeouts (--substreams-block-execution-timeout) are no longer silently swallowed when a WASM host-function panic (e.g. wasmtime) coincides with the deadline. Previously, recoverExecutionPanic would return nil instead of CodeDeadlineExceeded, causing the offending block to be skipped and the stream to complete successfully.
• CI: Docker image login, build and push are now skipped for fork PRs; image is still built (without push) to validate the Dockerfile.

Added

• added more metrics to identify time spent squashing

Performance

• Server: the tier1 job scheduler no longer slows down on very large reprocessings (100_000s of segments). Both NextJob and AllStoresCompleted used to rescan the whole completed-segment prefix on every scheduling event, making job selection O(segments²) over a run; they now advance a forward-only cursor and are O(1) amortized.
• Server: UpdateStats (progress reporting) now builds each stage's ranges in a single sort-free pass instead of one map+sort per stage every second.
• Server: removed per-message overhead in the scheduler event loop — the debug-state env var is read once at startup instead of on every message, and the per-message debug log no longer builds its fields when debug logging is disabled.
• Server: the cached-output streaming buffer now appends and checks for flushing under a single lock per block.