Bump Serilog from 3.1.1 to 4.0.0

[dependabot]

Bumps Serilog from 3.1.1 to 4.0.0.

Release notes

Sourced from Serilog's releases.

v4.0.0

What's new in Serilog 4.0.0?

If you're deploying to .NET Framework, note that Serilog's assembly version number has been unpinned from the long-running historical 2.0.0 default, and now matches the package version precisely. If you encounter issues, ensure your build is generating valid assembly binding redirects.

Simple, robust, built-in batching support

Sinks that need batching functionality can now be easily written, without any additional package dependencies, by implementing IBatchedLogEventSink:

class MyBatchedSink: IBatchedLogEventSink
{
    public Task EmitBatchAsync(IReadOnlyCollection<LogEvent> batch)
    {
        // Send a batch of log events...
    }
}

Batched sinks can be added using WriteTo.Sink(IBatchedLogEventSink, ...) - they're given first-class consideration just like regular un-batched sinks.

The built-in batching implementation is based on System.Threading.Channels and draws on the original Serilog.Sinks.PeriodicBatching package (now in maintenance-mode), to provide a full-featured, efficient, async-native batching implementation.

Experimental dotted name capturing

By setting an experimental AppContext switch, message templates can be used to capture dotted names, which are required when using some logging schemas.

AppContext.SetSwitch("Serilog.Parsing.MessageTemplateParser.AcceptDottedPropertyNames", true);
Log.Information("Running as {user.name}", Environment.UserName);
// Captures {"user.name": "nblumhardt"}

While currently experimental and unsupported, this flag is intended to help the ecosystem evaluate and prepare for dotted name support in a future Serilog release.

Changes

• #2015 — breaking unpin assembly version (@​nblumhardt)
• #2045 — breaking use case-insensitive matching for level overrides (@​tillig)
• #2051 — breaking recognize UtcTimestamp as a built-in token in output templates (@​MatthewHays)
• #1979 — add tests for ReusableStringWriter (@​nblumhardt)
• #2016 — update TFMs (@​nblumhardt, @​bartelink)
• #2018 — add LogEvent.UnstableAssembleFromParts() (@​nblumhardt)
• #2044 — build updates for compatibility (@​tillig)
• #2027 — improve trimming annotations, compatibility switch for compiler-generated type support (@​agocke)
• #2055 — introduce IBatchedLogEventSink and WriteTo.Sink(IBatchedLogEventSink) (@​nblumhardt)
• #2060 — introduce LoggerSinkConfiguration.CreateSink() and redesign .Wrap() (@​nblumhardt, @​bartelink)
• #2063 — improve MessageTemplateParser performance, switch to allow . in captured property names (@​nblumhardt)
• #2064 — make message template alignment parsing match spec (@​Insomniak47)

... (truncated)

Commits

• 573a628 Merge pull request #2067 from serilog/dev
• e963475 Attempt to make tests more robust on slow CI machines by increasing time steps
• 5e18faf Update all dependencies, fix new xUnit lints
• 9fcf795 Move TrimConfiguration to Capturing namespace, 'Configuration' namespace is j...
• 4ef3a87 Remove noop byte cast
• 9d3a088 fix: only disallows '}' in format strings, use byte comparison
• 920b8c8 fix: allows all printable characters as format values
• e1a0047 Typo - to -> do
• 921eccc Scope back to only considering dots; improve tests
• 592a124 Improve comment
• Additional commits viewable in compare view

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[github-actions]

Package	Line Rate	Branch Rate	Health
Serilog.Sinks.Splunk.TCP	65%	43%	➖
Serilog.Sinks.Splunk	19%	19%	❌
Serilog.Sinks.Splunk	50%	63%	❌
Summary	43% (334 / 812)	44% (86 / 208)	❌