Printf fixes around handling of -0.0 (negative zero) (#18147)

Abonie/revert contaminated arcade update (#20307)

* Revert "[release/10.0.4xx] Update dependencies from dotnet/arcade (#20134)"

This reverts commit 1253ea1.

* Replay Arcade 10 dependency update

Restore Microsoft.DotNet.Arcade.Sdk 10.0.0-beta.26418.1 after reverting the contaminated dependency-flow PR. The corresponding eng/common changes from PR #20243 are already present.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Fix FSI CLI tests after reverting central package management

Read the FsCheck version from the legacy FsCheckVersion property so the test assembly emits FsiRestoreTestPackageVersion after Directory.Packages.props is removed.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Report FS3888 for generic attribute type abbreviations instead of FS0…

…193 (#19915)

Brand release/10.0.4xx as .NET 10.0.400 servicing (#20044)

* Brand release/10.0.4xx as .NET 10.0.400 servicing

* Keep FCSMinorVersion at 12 so 43.12.400 stays above published 43.12.204

Fix #13099: optimizer drops side-effectful receiver of unit member ac…

…cess in task CE (#19885)

Backup of release/dev15.9.x tip before v4 reset to RTM (per user choi…

…ce A in S4)

Fix source-build: track Cryptography.Xml via Version.Details (#19839)

* Fix source-build: track System.Security.Cryptography.Xml via Version.Details

Move System.Security.Cryptography.Xml version management from hardcoded
eng/Versions.props to eng/Version.Details.xml + Version.Details.props,
following the same pattern as System.Diagnostics.DiagnosticSource and
other System.* runtime dependencies. This allows source-build to use
the live-built package instead of a prebuilt NuGet download.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Restore PrivateAssets=all on System.Security.Cryptography.Xml

Removing PrivateAssets=all caused transitive dependencies
(Microsoft.Bcl.Cryptography, System.Formats.Asn1, etc.) to flow into
fsc.fsproj on net472, triggering MSB3277 version conflicts with
System.ValueTuple from .NET Framework reference assemblies.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <copilot@github.com>

Update dependencies from https://github.com/dotnet/arcade build 20260…

…519.2 (#19771)

On relative base path root
Microsoft.DotNet.Arcade.Sdk From Version 10.0.0-beta.26257.4 -> To Version 10.0.0-beta.26269.2

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

Update dependencies from https://github.com/dotnet/arcade build 20260…

…519.2 (#19771)

On relative base path root
Microsoft.DotNet.Arcade.Sdk From Version 10.0.0-beta.26257.4 -> To Version 10.0.0-beta.26269.2

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>

Update dependencies from https://github.com/dotnet/arcade build 20260…

…519.2 (#19771)

On relative base path root
Microsoft.DotNet.Arcade.Sdk From Version 10.0.0-beta.26257.4 -> To Version 10.0.0-beta.26269.2

Co-authored-by: dotnet-maestro[bot] <dotnet-maestro[bot]@users.noreply.github.com>