Hangfire 1.8.16

Learn more about Target Frameworks and .NET Standard.

• .NETFramework 4.5.1

  • Hangfire.Core (= 1.8.16)
  • Hangfire.SqlServer (= 1.8.16)
  • Microsoft.Owin.Host.SystemWeb (>= 3.0.0)

• .NETStandard 1.3

  • Hangfire.AspNetCore (= 1.8.16)
  • Hangfire.Core (= 1.8.16)
  • Hangfire.SqlServer (= 1.8.16)

• .NETStandard 2.0

  • Hangfire.AspNetCore (= 1.8.16)
  • Hangfire.Core (= 1.8.16)
  • Hangfire.SqlServer (= 1.8.16)

Release notes are available in our blog https://www.hangfire.io/blog/
Please see https://docs.hangfire.io/en/latest/upgrade-guides/upgrading-to-hangfire-1.8.html to learn how to upgrade.

1.8.16

Hangfire.Core

• Changed – Include fewer stack frames in exceptions come from `IServerFilter` implementations.
• Changed – Don't include file information in the `ExceptionDetails` property of a FailedState instance.
• Changed – Switch back to `CancellationEvent` usage instead of `CancellationToken.WaitHandle`.
• Fixed – Don't commit external transaction in the `BackgroundJobStateChanger` implementation.
• Fixed – Use safe default serializer settings for Newtonsoft.Json 12.X and below.
• Project – Fix builds for the `net451` platform when using .NET 9.0.
• Project – Significantly reduce execution time of unit tests in the `RecurringJobSchedulerFacts` class.
• Project – Bump `Microsoft.CodeAnalysis.NetAnalyzers` package to version 9.0.0.

Hangfire.SqlServer

• Changed – Use vanilla ADO.NET when fetching a job in the `SqlServerJobQueue` implementation.
• Fixed – SqlException: Must declare the scalar variable "@key" in delayed and recurring job schedulers.
• Fixed – Decrease the `LockTimeout` time when calling the `sp_getapplock` procedure to 1 second for less blocking.
• Project – Disable parallel tests execution when building under .NET 9.0.
• Project – Run tests over the latest Microsoft.Data.SqlClient package and the `net6.0` platform.
• Project – Reduce execution time of integration tests.
• Project – Disable `PoolBlockingPeriod` setting on AppVeyor to handle transient test failures.

1.8.15

Hangfire.Core

• Added – New `AutomaticRetryAttribute.ExceptOn` property to skip retries for specific exceptions.
• Changed – Refactor filters pipeline to use less LINQ magic and fewer allocations.
• Changed – Use `GetCultureInfo` instead of creating an instance in the `CaptureCultureAttribute` filter.
• Changed – Cache some immutable data to avoid extra allocations.
• Fixed – Improve loopback address detection (by @meziantou).
• Fixed – Reformulate misleading error messages regarding retry timings (by @RGFuaWVs).
• Fixed – Problem with missing localizations in the previous version.
• Fixed – Don't hide exception details on Failed Jobs page when the exception message is empty.
• Fixed – Problems with the first restore when using the `build.bat` command.
• Fixed – Better display of canceled recurring jobs in dashboard.
• Fixed – Less overall allocations with using static delegates and struct-based iterators.
• Fixed – Improve precision of some diagnostic messages in the wait protection logic.
• Fixed – Make all private and internal classes sealed to improve code consistency.
• Fixed – Less overall pressure on garbage collector.

Hangfire.SqlServer

• Changed – Use query template caching based on schema name to avoid excessive `string` allocations.
• Changed – Use static callbacks almost anywhere to avoid unnecessary delegate allocations.
• Changed – Use `QuerySingle`* or `ReadSingle`* where possible to avoid allocating lists.
• Changed – Unify `DbCommand` and `DbParameter` creation logic to improve code consistency.

1.8.13 and 1.8.14

Hangfire.Core

• Changed – Partial cache for serialization and deserialization in `InvocationData` to produce less strings.
• Changed – Add caching for default type serializer and resolver.
• Changed – Don't let `JobFilter`-related logic to show up in profilers.
• Changed – Modify `IProfiler` to be less allocatey for diagnostic purposes that almost never run.
• Changed – Prefer using `CancellationToken.WaitHandle` again, since early .NET Core days are gone.
• Changed – Fewer allocations when working with `IStateHandler` collections in a state machine.
• Fixed – Redirect the "System.Private.Xml.Linq" assembly to the "System.Xml.Linq" one for better interoperability.
• Fixed – Don't throw `KeyNotFoundException` when recurring job is malformed.
• Fixed – Proper relative path calculation in `UrlHelper.To` for OWIN-based Dashboard UI (by @LordJZ).
• Fixed – Typo in the Turkish localization file (by @ismkdc).
• Project – Switch to a modern PowerShell 7+ to speed up SignPath installation on AppVeyor.

Hangfire.SqlServer

• Changed – Limit polling queries when queues are empty with a semaphore for all configurations.
• Changed – Use per-queue signaling for same-process workers, instead of having a global signal.
• Fixed – Don't silently truncate queue names, throw an exception instead.
• Project – Decrease delays in SQL Server-related tests to complete them faster.

1.8.12

Hangfire.Core

• Added – `MaxDegreeOfParallelismForSchedulers` experimental server option if supported by storage.
• Added – Experimental support for parallel execution of the delayed job scheduler.
• Added – Experimental support for parallel execution of the recurring job scheduler.
• Fixed – Recurring job is scheduled to the past after recovering from error with `AddOrUpdate`.
• Fixed – `AddOrUpdate` triggers execution of a recurring job, even if its next execution is in the future.
• Fixed – Two very minor errors in the Swedish localization file (by @Uglack).

Hangfire.SqlServer

• Fixed – Populate `InvocationData` and `LoadException` properties in `JobDetails` method results.

1.8.11

Hangfire.Core

• Changed – Add icons and fix metadata for NuGet packages.
• Changed – Bump ILRepack to version 2.0.27 to avoid problems with internalizing.
• Fixed – "Type exists in both Cronos and Hangfire.Core" exception.

1.8.10

Hangfire.Core

• Changed – Added Norwegian translations for new keys (by @khellang).
• Changed – Update Brazilian Portuguese translation (by @HugoAlames).
• Changed – Bump Cronos dependency to version 0.8.3.

Hangfire.AspNetCore

• Fixed – Don't check `HasStarted` in `Response.WriteAsync` to avoid breaking dispatchers.

Hangfire.SqlServer

• Changed – Bump Dapper for the `netstandard2.0` platform to version 2.1.28.
• Changed – Bump Dapper for `net451` and `netstandard1.3` platforms to version 1.60.6.

Hangfire.Core, Hangfire.NetCore, Hangfire.AspNetCore, Hangfire.SqlServer, Hangfire.SqlServer.Msmq

• Project – Enable NuGet package and DLL signing with a company certificate.
• Project – Require NuGet package signature validation on restore for dependencies.
• Project – Add `HangfireIO` as a package owner.

1.8.9

Hangfire.Core

• Changed – Use `Environment.MachineName` as a server name if other environment vars aren't available.
• Changed – Bump the Cronos package version from 0.7.1 to 0.8.1.
• Changed – Improve portuguese translations (by @filipe-silva).
• Fixed – Possible `NullReferenceException` on the Deleted Jobs page (regression from 1.8.7).
• Project – Enable full source link support with embedded symbols and repository-based sources.
• Project – Enable repeatable package restore using a lock file.
• Project – Run unit tests against the `net6.0` platform.
• Project – Modernise the build system and clean up the build scripts.

Hangfire.SqlServer

• Project – Enable full source link support with embedded symbols and repository-based sources.
• Project – Enable repeatable package restore using a lock file.
• Project – Run unit tests against the `net6.0` platform.

Hangfire.NetCore

• Project – Enable full source link support with embedded symbols and repository-based sources.
• Project – Enable repeatable package restore using a lock file.

Hangfire.AspNetCore

• Fixed – Don't attempt to write response headers when response has already started (by @maliming).
• Project – Enable full source link support with embedded symbols and repository-based sources.
• Project – Enable repeatable package restore using a lock file.

1.8.7

Hangfire.Core

• Added – Allow using macro expressions like `@hourly` for recurring jobs (by @MuhamedAbdalla).
• Added – Show storage time in page footer when supported by storage implementation.
• Added – Show duration and latency columns separately on the Succeeded Jobs page when supported.
• Added – Show the exception column on the Deleted Jobs page when available and supported by storage.
• Changed – Reduce package size by stripping unnecessary locales in Moment.js.
• Changed – Bump Microsoft.Owin package to version 4.2.2.
• Changed – Log a warning message when a server listens to unsupported queue names (by @MuhamedAbdalla).
• Changed – Use storage time, if available, to show delay warnings in the Dashboard UI.
• Fixed – Proper rendering of generic arguments on the Job Details page (by @olivermue).
• Fixed – Language inconsistency in the Dashboard UI related to date/time description.
• Fixed – Big stack traces take too long time to be formatted.
• Fixed – Don't throw `NullReferenceException` from the Scheduled Jobs page when there's a job with missing data.
• Fixed – Don't throw `NullReferenceException` from the Processing Jobs page when there's a job with missing data.
• Fixed – CSS for Enqueued and Deleted state cards in dark theme.
• Fixed – Log errors instead of throwing an exception when a particular table can't be cleaned.
• Fixed – Avoid logging fatal exceptions when stopping a faulting background process.
• Fixed – Don't display checkboxes in the Dashboard UI when job details can’t be fetched.
• Fixed – Scrollbars in WebKit-based browsers are now dark in dark mode.
• Project – Disable tests for `netcoreapp1.0` and `netcoreapp2.1` targets since they aren't supported in AppVeyor.
• Project – Add a `net6.0` target for unit tests instead of the removed ones.
• Project – Modernise projects and build environments to use the newest features.

Hangfire.SqlServer

• Changed – Avoid throwing an exception when a connection string has duplicate property names.
• Project – Disable tests for `netcoreapp1.0` and `netcoreapp2.1` targets since they aren't supported in AppVeyor.
• Project – Add a `net6.0` target for unit tests instead of the removed ones.
• Project – Modernise projects and build environments to use the newest features.

1.8.6

• Changed – Update jQuery library in Dashboard UI to version 3.7.1.
• Changed – Mark all types in Hangfire.Annotations with `EditorBrowsableAttribute(Never)`.
• Changed – Change state card colors for the Awaiting state to match the Scheduled state.
• Fixed – Exception when deserializing an instance of the `AutomaticRetryAttribute` class from JSON.
• Fixed – Add serialization-related constructors for all the exception classes.
• Fixed – Use invariant culture or ordinal comparisons for internal strings.
• Fixed – Use invariant culture when formatting key names for metrics.
• Fixed – Use `CurrentCulture` instead of `CurrentUICulture` when displaying time.
• Project – Enable running static analysis by Coverity Scan weekly.
• Project – Enable mandatory static analysis by the Microsoft.CodeAnalysis.NetAnalyzers package.
• Project – Change MSBuild path when building using newer .NET SDKs for Razor views.
       
Hangfire.SqlServer

• Fixed – Exception in Dashboard UI when schema version is not present in a database.
• Fixed – `DbCommand` resource leak when releasing a lock detected by static analysis.
• Fixed – Don't add SQL Server-related metrics multiple times in Dashboard UI.

Hangfire.NetCore

• Fixed – Include assembly information to the Hangfire.NetCore assembly.

1.8.5

Hangfire.Core

• Added – Possibility to inform a `FaviconPath` on `DashboardOptions` (by @cezar-pimentel).
• Fixed – Inability to restore a disabled recurring job, regression in version 1.8.3.
• Fixed – Make it possible to serialize the `AutomaticRetryAttribute` filter to JSON.

Hangfire.SqlServer

• Fixed – "Query processor could not produce a query plan" when removing expired counters in `Schema 5`.

1.8.4

Hangfire.Core

• Added – Pass server id from a worker to the `PerformContext.ServerId` property available in filters.
• Fixed – Send heartbeats until full background processing server shutdown.
     
Hangfire.NetCore

• Changed – Send the stop signal earlier in the shutdown pipeline when hosting in .NET Core 3.1 or higher.
• Changed – Set processing server to null in hosted service to avoid `ObjectDisposedException`.
• Fixed – Other `IHostedService` implementations can block Hangfire server from being stopped.

1.8.3

Hangfire.Core

• Changed – Allow to configure `MaxLinesInStackTrace` for a particular `FailedState` instance.
• Fixed – Remove job id from schedule when it's not in the Scheduled state for some reason.
• Fixed – Missing invocations of recurring jobs when the new "Ignorable" option is used.
• Fixed – Make `DisableConcurrentExecutionAttribute` and `LatencyTimeoutAttribute` serializable.

1.8.2

Hangfire.Core

• Changed – Disable transactional job creation feature appeared in 1.8.0.
• Fixed – "Can not start continuation XXX" error when storage supports transactional job creation.

Hangfire.SqlServer

• Fixed – `InvalidOperationException` with new dashboard metrics when a database has multiple data/log files.

1.8.1
     
Hangfire.Core

• Added – `MisfireHandlingMode.Ignorable` to avoid scheduling recurring jobs on missed schedules.
• Added – Support disabling dark mode via the `DashboardOptions.DarkModeEnabled` property.
• Changed – Remove the 1-hour limitation for the `WithJobExpirationTimeout` configuration method.
• Fixed – Add missing `UseDefaultCulture` configuration method overloads.
• Fixed – Add missing `UseDashboardStylesheet` and `UseJobDetailsRenderer` configuration methods.
• Fixed – Give even more space for identifiers on the Recurring Jobs page.
• Fixed – `state-card-state-active` color is not very dark (by @coolhome).
• Fixed – Slightly change chart proportions to fit 4K in Dashboard UI.

Hangfire.SqlServer

• Fixed – Blocked workers regression since 1.7.33 when using multiple servers inside a process.
• Fixed – Target schema version is less than the current schema version error.
• Fixed – Implement database metrics without the need for additional permissions.
• Fixed – Use the `forceseek` table hint whenever possible to avoid performance drops.
     
Hangfire.NetCore

• Fixed – Add `net461` target for Hangfire.NetCore package to avoid missing method exceptions.

1.8.0

Hangfire.Core

• Breaking – Dropped the `NET45` platform target in favor of the `NET451` target to support Visual Studio 2022.

• Added – Introduce the `Job.Queue` property, so jobs now can have their own queue specified.
• Added – Method overloads to create background jobs directly with a custom default queue.
• Added – Method overloads to create recurring jobs directly with a custom default queue.
• Added – `IBackgroundJobClient.Create` method overloads with the new `queue` parameter.
• Added – Allow to filter exception types in `AutomaticRetryAttribute` by using the new `OnlyOn` property.
• Added – `DeletedState` now has the persisted `Exception` property populated after a failure.
• Added – `JobContinuationOptions.OnlyOnDeletedState` to create continuations after a failure.
• Added – `Exception` job parameter is passed to continuation when `UseResultsInContinuations` method is used.
• Added – `FromExceptionAttribute` to deal with an antecedent exception in a background job continuation.
• Added – Make it possible to specify multiple `JobContinuationOptions` values for a continuation.
• Added – `BackgroundJobServerOptions.IsLightweightServer` option to run a server with no storage processes.
• Added – Ability to use custom formattable resource identifiers for the `DisableConcurrentExecution` filter.
• Added – Pass `ServerId` to `FailedState` instances to simplify the debugging on different servers.
• Added – Allow to pass job parameters when creating a job (by @brian-knoll-micronetonline).
• Added – `MisfireHandlingMode.Strict` to create a job for each missed recurring job occurrence.
• Added – Support for default culture and UI culture via the `UseDefaultCulture` configuration method.
• Added – Introduce the `captureDefault` parameter in the `CaptureCulture` filter.
• Added – `IGlobalConfiguration.UseFilterProvider` extension method to unify the configuration.
• Added – Built-in `Remove` method for `JobFilterCollection` to remove global filters based on their type.
• Added – `CompatibilityLevel.Version_180` flag to avoid storing culture parameters when they are the same as the default ones.
• Changed – Create job atomically when `Transaction.CreateJob` feature is supported by the storage.
• Changed – Query time from storage in recurring and delayed schedulers when supported by storage.
• Changed – Move job to the `DeletedState` instead of `SucceededState` when its invocation was canceled by a filter.
• Changed – Speedup delayed jobs when a custom default queue is specified by avoiding extra state transition.
• Changed – Use UI culture from `CurrentCulture` parameter when `CurrentUICulture` one is missing.
• Changed – Increase the default value for the `BackgroundJobServerOptions.StopTimeout` to 500 ms.
• Deprecated – `AddOrUpdate` overloads with optional params defined in the `RecurringJobManagerExtensions` class.
• Deprecated – `AddOrUpdate` overloads with optional parameters defined in the `RecurringJob` class.
• Deprecated – `AddOrUpdate` method overloads with no `recurringJobId` parameter.
• Deprecated – `RecurringJobOptions.QueueName` property, new methods should be used instead.
• Breaking – Dropped `NET45` platform target in favor of `NET451` target to support Visual Studio 2022.

Dashboard UI
• Added – Dark mode support for Dashboard UI depending on the system settings (by @danillewin).
• Added – Dashboard UI now has a full-width layout to display more data (by @danillewin).
• Added – Allow to add custom JavaScript and CSS files to the Dashboard UI via the `DashboardRoutes` class.
• Added – `DefaultRecordsPerPage` property on the `DashboardOptions` class (by @PaulARoy).
• Added – `IGlobalConfiguration.UseJobDetailsRenderer` method for custom renderers for the Job Details page.
• Added – Display deleted jobs in the Realtime and History graphs when supported by storage.
• Added – `IGlobalConfiguration.UseDashboardMetrics` extension method to pass multiple metrics at once.
• Added – State renderer for the `DeletedState` to display its new exception property.
• Added – Support for new `MonitoringApi` methods for the Awaiting Jobs page.
• Changed – Make it possible to display methods of non-loaded jobs in the Dashboard UI when supported by storage.
• Changed – Improved display of realtime chart with more accents on failed and deleted jobs.
• Changed – Don't display the queue name in the state transition list when it's the `default` one.
• Changed – Display scheduled job count when the enqueued count is zero on the main metric.

Extensibility
• Added – `Factory`, `StateMachine`, and `Performer` properties to context classes to avoid injecting services.
• Added – Allow to pass custom data to `ApplyStateContext` and `ElectStateContext` instances.
• Added – Preserve custom data dictionary between the entire filter chain.
• Added – Allow to pass a transaction to background job state changer when new methods are implemented.
• Changed – Ignore some members when serializing a `JobFilterAttribute` instance to decrease the payload size.

Storage
• Added – Virtual `JobStorage.GetReadOnlyConnection` method intended to return `JobStorageConnection` for replicas.
• Added – Virtual `JobStorage.HasFeature` method for querying optional features.
• Added – The `JobStorageFeatures` class to avoid using magic strings in storage features.
• Added – Optional `GetSetCount`, `GetSetContains`, and `GetUtcDateTime` methods for the `JobStorageConnection` class.
• Added – Optional `AcquireDistributedLock` and `RemoveFromQueue` methods for the `JobStorageTransaction` class.
• Added – Optional `CreateJob` and `SetJobParameter` methods for the `JobStorageTransaction` class.
• Added – Optional `ParametersSnapshot` property for `BackgroundJob` and `JobData` classes to minimize roundtrips in the future.
• Added – Support for transactional acknowledgment using a new storage method for better handling some data loss scenarios.
• Added – Fetch `Retries` and `Awaiting` metrics in `StatisticsDto` properties when supported by storage.
• Added – The `JobStorageMonitor` class with more available methods for the new features.
• Changed – Allow to query job parameters without additional roundtrip when supported by storage.
• Changed – Expose state data dictionaries in list DTOs when supported by storage.
• Changed – Rely on storage indexing with the `Monitoring.AwaitingJobs` feature.

Internals
• Added – `IBackgroundProcess.UseBackgroundPool` now allows to pass thread configuration logic.
• Added – `BackgroundJobServerOptions.WorkerThreadConfigurationAction` option for custom thread configuration.
• Changed – Allow changing queues on the fly with custom worker configuration.
• Changed – Avoid storage roundtrip to query job data in worker, take data from previous state change.
• Changed – `FromParameterAttribute`-based logic now always overwrites arguments, even with non-null values.
• Changed – Turn the `JobContinuationOptions` enum into flags while still possible.
• Changed – Re-implement `TaskExtensions.WaitOneAsync` only with the `RegisterWaitForSingleObject` method.
• Changed – `ServerHeartbeatProcess` now uses `ThreadPriority.AboveNormal` to prioritize heartbeats.

Hangfire.NetCore

• Added – `IApplicationBuilder.UseHangfireServer` that accepts custom factory for `IBackgroundProcessingServer`.
• Added – `net451` and `netstandard1.3` targets for the package.
• Changed – Use `netstandard2.1` target instead of `netcoreapp3.0` for the package.
• Changed – Send the "stop" signal earlier when the host supports .NET Standard 2.1.
• Changed – Don't throw `ObjectDisposedException` when hosted service is disposed twice.

Hangfire.AspNetCore

• Breaking – Make the package to be dependent on Hangfire.NetCore and use the same types.
• Added – `IApplicationBuilder.UseHangfireServer` that accepts custom factory for `IBackgroundProcessingServer`.

Hangfire.SqlServer

• Breaking – Prioritise Microsoft.Data.SqlClient package over System.Data.SqlClient one.
• Breaking – Dropped the `NET45` platform target in favor of the `NET451` target to support Visual Studio 2022.

• Added – `Schema 8` migration with fixed `JobQueue.Id` column to use the `bigint` type.
• Added – `Schema 9` migration that creates an index for the `State.CreatedAt` column.
• Added – Automatic client package detection based on available types, preferring `System.Data.SqlClient` (by @0xced).
• Added – `SqlServerStorageOptions.DbProviderFactory` option to use a custom provider factory.
• Added – Clean up of old state entries of a non-finished job when `InactiveStateExpirationTimeout` is set.
• Added – `TryAutoDetectSchemaDependentOptions` option to automatically enable options based on the schema.
• Added – Optional experimental transactional acknowledge for SQL Server (`UseTransactionalAcknowledge` option).
• Added – Implement the `Connection.GetUtcDateTime` feature to make work the new changes in schedulers.
• Added – `SqlServerStorage.SchemaVersion` metric for Dashboard UI.
• Added – `DefaultQueueProvider` option to specify a custom default queue provider.
• Changed – Remove dependency on System.Data.SqlClient for Hangfire.SqlServer (by @0xced).
• Changed – Set default value for the `QueuePollInterval` option to `TimeSpan.Zero`.
• Changed – Polling delay when `QueuePollInterval` is set to zero now defaults to 200 ms.
• Changed – Sliding invisibility timeout-based fetching method is now used by default with a 5-minute timeout.
• Changed – Use command batching by default with a 5-minute maximum timeout.
• Changed – Enable the `UseRecommendedIsolationLevel` option by default.
• Changed – `GetJobData` now populates the `JobData.ParametersSnapshot` property to avoid additional roundtrips.
• Changed – Display scheduled and processing jobs in ascending order in Dashboard UI.
• Changed – Implement the `Transaction.AcquireDistributedLock` feature.
• Changed – Implement the `GetSetCount.Limited feature`.
• Changed – Implement the `GetSetContains feature`.
• Changed – Bump the internal version of Dapper to 2.0.123.
• Changed – Enable common metrics for SQL Server storage to be shown by default.
• Changed – Enable the `Monitoring.AwaitingJobs` feature for SQL storage.
• Deprecated – `UsePageLocksOnDequeue` option is now obsolete and doesn't affect anything.

Hangfire.SqlServer.Msmq

• Breaking – Dropped the `NET45` platform target in favor of the `NET451` target to support Visual Studio 2022.