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Add the net9 StringBuilder params ReadOnlySpan overloads #605

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Merged
SimonCropp merged 1 commit into from
Sep 10, 2026
Merged

Add the net9 StringBuilder params ReadOnlySpan overloads #605

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40 changes: 20 additions & 20 deletions apiCount.include.md
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@@ -1,28 +1,28 @@
**API count: 1155**
**API count: 1161**

### Per Target Framework

| Target | APIs |
| -- | -- |
| `net461` | 1063 |
| `net462` | 1063 |
| `net47` | 1062 |
| `net471` | 1061 |
| `net472` | 1057 |
| `net48` | 1057 |
| `net481` | 1057 |
| `netstandard2.0` | 1059 |
| `netstandard2.1` | 892 |
| `netcoreapp2.0` | 982 |
| `netcoreapp2.1` | 903 |
| `netcoreapp2.2` | 903 |
| `netcoreapp3.0` | 864 |
| `netcoreapp3.1` | 863 |
| `net5.0` | 741 |
| `net6.0` | 637 |
| `net7.0` | 496 |
| `net8.0` | 375 |
| `net461` | 1069 |
| `net462` | 1069 |
| `net47` | 1068 |
| `net471` | 1067 |
| `net472` | 1063 |
| `net48` | 1063 |
| `net481` | 1063 |
| `netstandard2.0` | 1065 |
| `netstandard2.1` | 898 |
| `netcoreapp2.0` | 988 |
| `netcoreapp2.1` | 909 |
| `netcoreapp2.2` | 909 |
| `netcoreapp3.0` | 870 |
| `netcoreapp3.1` | 869 |
| `net5.0` | 747 |
| `net6.0` | 643 |
| `net7.0` | 502 |
| `net8.0` | 381 |
| `net9.0` | 243 |
| `net10.0` | 182 |
| `net11.0` | 58 |
| `uap10.0` | 1049 |
| `uap10.0` | 1055 |
18 changes: 18 additions & 0 deletions api_list.include.md
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Expand Up @@ -1293,6 +1293,24 @@
* `StringBuilder Append(ReadOnlySpan<char>)` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.append?view=net-11.0#system-text-stringbuilder-append(system-readonlyspan((system-char))))
* `StringBuilder Append(StringBuilder?, int, int)` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.append?view=net-11.0#system-text-stringbuilder-append(system-text-stringbuilder-system-int32-system-int32))
* `StringBuilder Append(StringBuilder, StringBuilder.AppendInterpolatedStringHandler)` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.append?view=net-11.0#system-text-stringbuilder-append(system-text-stringbuilder-appendinterpolatedstringhandler@))
* `StringBuilder AppendFormat(IFormatProvider?, string, ReadOnlySpan<object?>)` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.appendformat?view=net-11.0#system-text-stringbuilder-appendformat(system-iformatprovider-system-string-system-readonlyspan((system-object))))
* Note: Copies the span to an array and uses the array overload, so this allocates where the BCL formats straight from the span.
* Note: Only reached when the argument is already a ReadOnlySpan. A loose argument list binds to the BCL array overload, exactly as it does without Polyfill.
* `StringBuilder AppendFormat(string, ReadOnlySpan<object?>)` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.appendformat?view=net-11.0#system-text-stringbuilder-appendformat(system-string-system-readonlyspan((system-object))))
* Note: Copies the span to an array and uses the array overload, so this allocates where the BCL formats straight from the span.
* Note: Only reached when the argument is already a ReadOnlySpan. A loose argument list binds to the BCL array overload, exactly as it does without Polyfill.
* `StringBuilder AppendJoin(char, ReadOnlySpan<object?>)` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.appendjoin?view=net-11.0#system-text-stringbuilder-appendjoin(system-char-system-readonlyspan((system-object))))
* Note: Copies the span to an array and uses the array overload, so this allocates where the BCL joins straight from the span.
* Note: Only reached when the argument is already a ReadOnlySpan. A loose argument list binds to the array overload, exactly as it does without Polyfill.
* `StringBuilder AppendJoin(char, ReadOnlySpan<string?>)` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.appendjoin?view=net-11.0#system-text-stringbuilder-appendjoin(system-char-system-readonlyspan((system-string))))
* Note: Copies the span to an array and uses the array overload, so this allocates where the BCL joins straight from the span.
* Note: Only reached when the argument is already a ReadOnlySpan. A loose argument list binds to the array overload, exactly as it does without Polyfill.
* `StringBuilder AppendJoin(string?, ReadOnlySpan<object?>)` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.appendjoin?view=net-11.0#system-text-stringbuilder-appendjoin(system-string-system-readonlyspan((system-object))))
* Note: Copies the span to an array and uses the array overload, so this allocates where the BCL joins straight from the span.
* Note: Only reached when the argument is already a ReadOnlySpan. A loose argument list binds to the array overload, exactly as it does without Polyfill.
* `StringBuilder AppendJoin(string?, ReadOnlySpan<string?>)` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.appendjoin?view=net-11.0#system-text-stringbuilder-appendjoin(system-string-system-readonlyspan((system-string))))
* Note: Copies the span to an array and uses the array overload, so this allocates where the BCL joins straight from the span.
* Note: Only reached when the argument is already a ReadOnlySpan. A loose argument list binds to the array overload, exactly as it does without Polyfill.
* `StringBuilder AppendJoin(char, object?[])` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.appendjoin?view=net-11.0#system-text-stringbuilder-appendjoin(system-char-system-object()))
* `StringBuilder AppendJoin(char, string?[])` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.appendjoin?view=net-11.0#system-text-stringbuilder-appendjoin(system-char-system-string()))
* `StringBuilder AppendJoin(string?, object?[])` [reference](https://learn.microsoft.com/en-us/dotnet/api/system.text.stringbuilder.appendjoin?view=net-11.0#system-text-stringbuilder-appendjoin(system-string-system-object()))
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72 changes: 36 additions & 36 deletions assemblySize.include.md
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Expand Up @@ -2,24 +2,24 @@

| | Empty Assembly | With Polyfill | Diff | Ensure | ArgumentExceptions | StringInterpolation | Nullability |
|----------------|----------------|---------------|-----------|-----------|--------------------|---------------------|-------------|
| netstandard2.0 | 8.0KB | 384.0KB | +376.0KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| netstandard2.1 | 8.5KB | 340.0KB | +331.5KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net461 | 8.5KB | 383.0KB | +374.5KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net462 | 7.0KB | 386.5KB | +379.5KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net47 | 7.0KB | 386.5KB | +379.5KB | +8.5KB | +6.0KB | +8.5KB | +13.0KB |
| net471 | 8.5KB | 385.5KB | +377.0KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net472 | 8.5KB | 384.0KB | +375.5KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net48 | 8.5KB | 384.0KB | +375.5KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net481 | 8.5KB | 384.0KB | +375.5KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| netcoreapp2.0 | 9.0KB | 362.0KB | +353.0KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| netcoreapp2.1 | 9.0KB | 343.0KB | +334.0KB | +8.5KB | +6.5KB | +9.0KB | +13.5KB |
| netcoreapp2.2 | 9.0KB | 343.0KB | +334.0KB | +8.5KB | +6.5KB | +9.0KB | +13.5KB |
| netcoreapp3.0 | 9.5KB | 341.0KB | +331.5KB | +9.0KB | +6.5KB | +9.5KB | +14.0KB |
| netcoreapp3.1 | 9.5KB | 339.5KB | +330.0KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net5.0 | 9.5KB | 305.0KB | +295.5KB | +9.0KB | +6.5KB | +9.0KB | +14.0KB |
| net6.0 | 10.0KB | 246.0KB | +236.0KB | +9.5KB | +7.0KB | +512bytes | +3.5KB |
| net7.0 | 10.0KB | 214.5KB | +204.5KB | +9.5KB | +6.0KB | +512bytes | +3.5KB |
| net8.0 | 9.5KB | 185.5KB | +176.0KB | +8.0KB | | +512bytes | +3.0KB |
| netstandard2.0 | 8.0KB | 385.5KB | +377.5KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| netstandard2.1 | 8.5KB | 341.5KB | +333.0KB | +9.0KB | +6.5KB | +8.5KB | +13.5KB |
| net461 | 8.5KB | 384.0KB | +375.5KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net462 | 7.0KB | 388.0KB | +381.0KB | +8.5KB | +6.0KB | +8.5KB | +13.0KB |
| net47 | 7.0KB | 387.5KB | +380.5KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net471 | 8.5KB | 386.5KB | +378.0KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net472 | 8.5KB | 385.5KB | +377.0KB | +8.5KB | +6.5KB | +9.0KB | +13.5KB |
| net48 | 8.5KB | 385.5KB | +377.0KB | +8.5KB | +6.5KB | +9.0KB | +13.0KB |
| net481 | 8.5KB | 385.5KB | +377.0KB | +8.5KB | +6.5KB | +9.0KB | +13.5KB |
| netcoreapp2.0 | 9.0KB | 363.5KB | +354.5KB | +8.5KB | +6.5KB | +9.0KB | +13.5KB |
| netcoreapp2.1 | 9.0KB | 344.0KB | +335.0KB | +9.0KB | +6.5KB | +9.0KB | +14.0KB |
| netcoreapp2.2 | 9.0KB | 344.0KB | +335.0KB | +9.0KB | +6.5KB | +9.0KB | +14.0KB |
| netcoreapp3.0 | 9.5KB | 342.5KB | +333.0KB | +9.0KB | +6.5KB | +9.0KB | +14.0KB |
| netcoreapp3.1 | 9.5KB | 341.0KB | +331.5KB | +8.5KB | +6.5KB | +9.0KB | +13.5KB |
| net5.0 | 9.5KB | 306.5KB | +297.0KB | +9.0KB | +6.5KB | +9.0KB | +13.5KB |
| net6.0 | 10.0KB | 247.5KB | +237.5KB | +9.5KB | +6.5KB | +512bytes | +3.0KB |
| net7.0 | 10.0KB | 216.0KB | +206.0KB | +9.5KB | +6.0KB | +512bytes | +3.5KB |
| net8.0 | 9.5KB | 186.5KB | +177.0KB | +8.5KB | +512bytes | +512bytes | +3.5KB |
| net9.0 | 9.5KB | 117.0KB | +107.5KB | +8.0KB | | +512bytes | +3.0KB |
| net10.0 | 10.0KB | 93.5KB | +83.5KB | +8.5KB | | +512bytes | +3.0KB |
| net11.0 | 10.0KB | 21.0KB | +11.0KB | +9.0KB | | +512bytes | +3.5KB |
Expand All @@ -29,24 +29,24 @@

| | Empty Assembly | With Polyfill | Diff | Ensure | ArgumentExceptions | StringInterpolation | Nullability |
|----------------|----------------|---------------|-----------|-----------|--------------------|---------------------|-------------|
| netstandard2.0 | 8.0KB | 559.3KB | +551.3KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| netstandard2.1 | 8.5KB | 488.3KB | +479.8KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net461 | 8.5KB | 559.3KB | +550.8KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net462 | 7.0KB | 562.8KB | +555.8KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net47 | 7.0KB | 562.6KB | +555.6KB | +16.2KB | +7.7KB | +13.4KB | +18.4KB |
| net471 | 8.5KB | 561.2KB | +552.7KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net472 | 8.5KB | 558.6KB | +550.1KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net48 | 8.5KB | 558.6KB | +550.1KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net481 | 8.5KB | 558.6KB | +550.1KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| netcoreapp2.0 | 9.0KB | 526.7KB | +517.7KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| netcoreapp2.1 | 9.0KB | 495.0KB | +486.0KB | +16.2KB | +8.2KB | +13.9KB | +18.9KB |
| netcoreapp2.2 | 9.0KB | 495.0KB | +486.0KB | +16.2KB | +8.2KB | +13.9KB | +18.9KB |
| netcoreapp3.0 | 9.5KB | 486.4KB | +476.9KB | +16.7KB | +8.2KB | +14.4KB | +19.4KB |
| netcoreapp3.1 | 9.5KB | 484.8KB | +475.3KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net5.0 | 9.5KB | 432.9KB | +423.4KB | +16.7KB | +8.2KB | +13.9KB | +19.4KB |
| net6.0 | 10.0KB | 353.7KB | +343.7KB | +17.2KB | +8.7KB | +1.1KB | +4.2KB |
| net7.0 | 10.0KB | 305.4KB | +295.4KB | +17.1KB | +7.4KB | +1.1KB | +4.2KB |
| net8.0 | 9.5KB | 262.6KB | +253.1KB | +15.5KB | +299bytes | +1.1KB | +3.7KB |
| netstandard2.0 | 8.0KB | 561.3KB | +553.3KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| netstandard2.1 | 8.5KB | 490.3KB | +481.8KB | +16.7KB | +8.2KB | +13.4KB | +18.9KB |
| net461 | 8.5KB | 560.8KB | +552.3KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net462 | 7.0KB | 564.8KB | +557.8KB | +16.2KB | +7.7KB | +13.4KB | +18.4KB |
| net47 | 7.0KB | 564.0KB | +557.0KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net471 | 8.5KB | 562.7KB | +554.2KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net472 | 8.5KB | 560.6KB | +552.1KB | +16.2KB | +8.2KB | +13.9KB | +18.9KB |
| net48 | 8.5KB | 560.6KB | +552.1KB | +16.2KB | +8.2KB | +13.9KB | +18.4KB |
| net481 | 8.5KB | 560.6KB | +552.1KB | +16.2KB | +8.2KB | +13.9KB | +18.9KB |
| netcoreapp2.0 | 9.0KB | 528.7KB | +519.7KB | +16.2KB | +8.2KB | +13.9KB | +18.9KB |
| netcoreapp2.1 | 9.0KB | 496.5KB | +487.5KB | +16.7KB | +8.2KB | +13.9KB | +19.4KB |
| netcoreapp2.2 | 9.0KB | 496.5KB | +487.5KB | +16.7KB | +8.2KB | +13.9KB | +19.4KB |
| netcoreapp3.0 | 9.5KB | 488.3KB | +478.8KB | +16.7KB | +8.2KB | +13.9KB | +19.4KB |
| netcoreapp3.1 | 9.5KB | 486.8KB | +477.3KB | +16.2KB | +8.2KB | +13.9KB | +18.9KB |
| net5.0 | 9.5KB | 434.8KB | +425.3KB | +16.7KB | +8.2KB | +13.9KB | +18.9KB |
| net6.0 | 10.0KB | 355.7KB | +345.7KB | +17.2KB | +8.2KB | +1.1KB | +3.7KB |
| net7.0 | 10.0KB | 307.3KB | +297.3KB | +17.1KB | +7.4KB | +1.1KB | +4.2KB |
| net8.0 | 9.5KB | 264.1KB | +254.6KB | +16.0KB | +811bytes | +1.1KB | +4.2KB |
| net9.0 | 9.5KB | 169.1KB | +159.6KB | +15.5KB | | +1.1KB | +3.7KB |
| net10.0 | 10.0KB | 136.1KB | +126.1KB | +16.0KB | | +1.1KB | +3.7KB |
| net11.0 | 10.0KB | 30.9KB | +20.9KB | +16.5KB | | +1.1KB | +4.2KB |
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