diff --git a/.github/outdated/held.toml b/.github/outdated/held.toml
index 4751b75e..537b9886 100644
--- a/.github/outdated/held.toml
+++ b/.github/outdated/held.toml
@@ -12,9 +12,3 @@
 # an entry that holds nothing any more, because the package moved or left the tree - a hold
 # nobody needs still reads as a decision somebody made. A key the gate does not know is refused
 # rather than ignored, so a misspelt `until` cannot hold a version for ever.
-
-[[held]]
-package = "coverlet.collector"
-through = "10.1.0"
-until = 2026-12-01
-reason = "The coverage floors in tests/coverage-floor.json are held to a tenth of a point, and coverlet 10 counts auto-properties and records differently, so the move needs a pull request of its own whose numbers CI measures (backlog 615)."
diff --git a/THIRD-PARTY-NOTICES.md b/THIRD-PARTY-NOTICES.md
index 6478df54..a723d352 100644
--- a/THIRD-PARTY-NOTICES.md
+++ b/THIRD-PARTY-NOTICES.md
@@ -126,7 +126,7 @@ list should be able to tell at a glance which side of the line each one falls on
 | Meziantou.Analyzer 3.0.317 | MIT, (c) Gérald Barré | Extra analyser rules |
 | xunit.v3.mtp-off 4.0.2, xunit.runner.visualstudio 4.0.1 | Apache-2.0 | Test framework |
 | Microsoft.NET.Test.Sdk 18.11.0 | MIT | Test host |
-| coverlet.collector 6.0.4 | MIT | Coverage collection |
+| coverlet.collector 10.1.0 | MIT | Coverage collection |
 | CsCheck 5.0.0 | Apache-2.0 | Property-based testing |
 | Microsoft.Windows.SDK.Win32Metadata 71.0.37-preview | Windows SDK licence terms | The machine-readable description of the Win32 API that CsWin32 reads to generate from. Arrives as its dependency rather than being asked for |
 | Microsoft.Windows.WDK.Win32Metadata 0.13.25-experimental | Windows SDK licence terms | The same thing for the driver-facing half of the API |
diff --git a/tests/Bws.Architecture.Tests/Bws.Architecture.Tests.csproj b/tests/Bws.Architecture.Tests/Bws.Architecture.Tests.csproj
index fa3c165e..c5ac5286 100644
--- a/tests/Bws.Architecture.Tests/Bws.Architecture.Tests.csproj
+++ b/tests/Bws.Architecture.Tests/Bws.Architecture.Tests.csproj
@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="coverlet.collector" Version="10.1.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.11.0" />
     <PackageReference Include="xunit.v3.mtp-off" Version="4.0.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="4.0.1" />
diff --git a/tests/Bws.Cli.Tests/Bws.Cli.Tests.csproj b/tests/Bws.Cli.Tests/Bws.Cli.Tests.csproj
index 80d32238..b0a7b5d1 100644
--- a/tests/Bws.Cli.Tests/Bws.Cli.Tests.csproj
+++ b/tests/Bws.Cli.Tests/Bws.Cli.Tests.csproj
@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="coverlet.collector" Version="10.1.0" />
     <!--
       The same random input library as the core's tests, the same version, and still never in
       anything published - ADR-15 says so on its row. It arrives here on 2026-10-16 for the
diff --git a/tests/Bws.Core.Tests/Bws.Core.Tests.csproj b/tests/Bws.Core.Tests/Bws.Core.Tests.csproj
index 71a358ab..2e8a862b 100644
--- a/tests/Bws.Core.Tests/Bws.Core.Tests.csproj
+++ b/tests/Bws.Core.Tests/Bws.Core.Tests.csproj
@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="coverlet.collector" Version="10.1.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.11.0" />
     <PackageReference Include="xunit.v3.mtp-off" Version="4.0.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="4.0.1" />
diff --git a/tests/Bws.Gui.Tests/Bws.Gui.Tests.csproj b/tests/Bws.Gui.Tests/Bws.Gui.Tests.csproj
index 30373c9b..6f32afed 100644
--- a/tests/Bws.Gui.Tests/Bws.Gui.Tests.csproj
+++ b/tests/Bws.Gui.Tests/Bws.Gui.Tests.csproj
@@ -18,7 +18,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="coverlet.collector" Version="10.1.0" />
     <!--
       The same random input library as the core's and the command line's tests, the same version,
       and still never in anything published - ADR-15 says so on its row. It arrives here on
diff --git a/tests/Bws.Integration.Tests/Bws.Integration.Tests.csproj b/tests/Bws.Integration.Tests/Bws.Integration.Tests.csproj
index 63e400fe..ab746be0 100644
--- a/tests/Bws.Integration.Tests/Bws.Integration.Tests.csproj
+++ b/tests/Bws.Integration.Tests/Bws.Integration.Tests.csproj
@@ -24,7 +24,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="coverlet.collector" Version="10.1.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.11.0" />
     <PackageReference Include="xunit.v3.mtp-off" Version="4.0.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="4.0.1" />
diff --git a/tests/Bws.Site.Tests/Bws.Site.Tests.csproj b/tests/Bws.Site.Tests/Bws.Site.Tests.csproj
index 4a6ccafb..9e8ee982 100644
--- a/tests/Bws.Site.Tests/Bws.Site.Tests.csproj
+++ b/tests/Bws.Site.Tests/Bws.Site.Tests.csproj
@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="coverlet.collector" Version="6.0.4" />
+    <PackageReference Include="coverlet.collector" Version="10.1.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.11.0" />
     <PackageReference Include="xunit.v3.mtp-off" Version="4.0.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="4.0.1" />