Changelog

v26.1.0 - (2026-08-29)

First stable release, compatible with SimpleW v26.1.x.

feature

• Add fixed-rate interval schedules with ScheduleEvery. The first occurrence runs after one complete interval, missed ticks do not cause schedule drift, and overlapping occurrences are skipped by default.
• Add delayed jobs with EnqueueAfter and EnqueueAt, backed by a shared timed scheduler that does not occupy worker slots while jobs are waiting.
• Add asynchronous queue backpressure with EnqueueAsync, which waits for bounded queue capacity without blocking a thread and keeps admission cancellation separate from cancellation of an accepted job.
• Add BackgroundJobOptions with global defaults and per-job or per-schedule overrides for cooperative per-attempt timeouts, retry counts, exponential backoff, maximum retry delays, and timeout retry control.
• Add individual cancellation with Cancel for scheduled, queued, retrying, and running jobs. Running delegates receive cancellation cooperatively through BackgroundJobContext.CancellationToken.
• Add the Scheduled, Retrying, and TimedOut job states.
• Extend telemetry with attempt, retry, timeout, cancellation, and scheduled-job metrics, plus gauges for enabled interval schedules. Metrics keep low-cardinality source, result, and reason tags.

change

• Clone DefaultJobOptions for each immediate, delayed, cron, or interval job before applying local overrides, so one job cannot mutate shared defaults.
• Keep the non-concurrent schedule guard active while an occurrence is queued, running, or retrying, and release it only when the job reaches a terminal state.
• Reset attempt-scoped progress before a retry and only accept progress reports while user code is running.
• Track delayed jobs and retries in one priority queue, release their captured delegates promptly on cancellation, and cancel all non-terminal work during shutdown.