Write the updated Directory.Packages.props content to a temp file in the same directory and swap it in with File.Replace instead of truncating the original file in place. A mid-write failure (disk full, process killed) now leaves the original file completely untouched instead of empty or partially written.
Keep the original project file encoding when rewriting updated NuGet package versions. This avoids forcing the default encoding during XML writes and stores the XML output before truncating the file stream.
Improve CLI package update behavior when resolving the latest `Volo.Abp.Core` nightly version fails or returns empty: the `--include` pass is now skipped explicitly with a warning while normal project updates continue. Also switch file reading in `VoloNugetPackagesVersionUpdater` to use the shared `DefaultEncoding` instead of `Encoding.Default` for consistent encoding handling.
Extend `switch-to-nightly` with `--include` and `--exclude-packages` options to optionally update Central Package Management files (like `Directory.Packages.props`) alongside regular project/package updates. The updater now resolves the nightly ABP version once, updates `PackageVersion Include="Volo.*"` entries with exclusion and LeptonX/Studio safeguards, and logs/continues on MyGet or file-write failures. Also fixes `.npmrc` registry appending to insert a newline before the added registry entry.
Add an ITimezoneProvider.ConvertUnspecifiedToUtc helper that computes the
UTC ticks and keeps boundary values unchanged instead of throwing, then use
it in the System.Text.Json and Newtonsoft converters and the MVC model
binder. Normalize the Volo.Docs commit date filters to UTC for consistency.
AbpDateTimeConverterBase.Normalize converts an Unspecified DateTime to UTC via
`new DateTimeOffset(value, offset).UtcDateTime` when the clock is UTC and a user
timezone is set. For values within the timezone offset distance of
DateTime.MinValue/MaxValue (most notably the DateTime.MinValue placeholder), this
throws ArgumentOutOfRangeException. The exception was swallowed and logged as
"Could not convert DateTime with unspecified Kind using timezone '...'." on every
serialization, flooding logs for positive-offset users (e.g. Asia/Shanghai +08:00).
Catch the boundary ArgumentOutOfRangeException explicitly, keep the value unchanged,
and log it at Debug level instead of Warning so it stays traceable without polluting
production logs. Other unexpected failures still log a warning.
Also make Volo.Docs GitHubDocumentSource return a Utc-kind placeholder
(DateTime.SpecifyKind(DateTime.MinValue, Utc)) and use Author.Date.UtcDateTime, so it
no longer emits Unspecified placeholders in the first place.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>