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Merged
gewarren merged 3 commits into from
Jan 9, 2026
Merged

Update title to BinaryReader.ReadString #50988

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878562b
Update title to BinaryReader,ReadString
Ramo-Y Jan 8, 2026
118c8a3
Update docs/core/compatibility/core-libraries/9.0/binaryreader.md
Ramo-Y Jan 9, 2026
19ee106
Update BinaryReader.ReadString in TOC and index page
Ramo-Y Jan 9, 2026
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2 changes: 1 addition & 1 deletion docs/core/compatibility/9.0.md
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Expand Up @@ -38,7 +38,7 @@ If you're migrating an app to .NET 9, the breaking changes listed here might aff
| [API obsoletions with custom diagnostic IDs](core-libraries/9.0/obsolete-apis-with-custom-diagnostics.md) | Source incompatible | (Multiple) |
| [Ambiguous overload resolution affecting StringValues implicit operators](core-libraries/9.0/ambiguous-overload.md) | Source incompatible | GA |
| [BigInteger maximum length](core-libraries/9.0/biginteger-limit.md) | Behavioral change | Preview 6 |
| [BinaryReader.GetString() returns "\uFFFD" on malformed sequences](core-libraries/9.0/binaryreader.md) | Behavioral change | Preview 7 |
| [BinaryReader.ReadString() returns "\uFFFD" on malformed sequences](core-libraries/9.0/binaryreader.md) | Behavioral change | Preview 7 |
| [C# overload resolution prefers `params` span-type overloads](core-libraries/9.0/params-overloads.md) | Source incompatible | |
| [Creating type of array of System.Void not allowed](core-libraries/9.0/type-instance.md) | Behavioral change | Preview 1 |
| [Default `Equals()` and `GetHashCode()` throw for types marked with `InlineArrayAttribute`](core-libraries/9.0/inlinearrayattribute.md) | Behavioral change | Preview 6 |
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6 changes: 3 additions & 3 deletions docs/core/compatibility/core-libraries/9.0/binaryreader.md
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@@ -1,9 +1,9 @@
---
title: "Breaking change:BinaryReader.GetString() returns '\uFFFD' on malformed sequences"
description: Learn about the .NET 9 breaking change in core .NET libraries where BinaryReader.GetString() returns "\uFFFD" on malformed encoded string sequences.
title: "Breaking change: BinaryReader.ReadString() returns '\uFFFD' on malformed sequences"
description: Learn about the .NET 9 breaking change in core .NET libraries where BinaryReader.ReadString() returns "\uFFFD" on malformed encoded string sequences.
ms.date: 10/03/2024
---
# BinaryReader.GetString() returns "\uFFFD" on malformed sequences
# BinaryReader.ReadString() returns "\uFFFD" on malformed sequences

A a minor breaking change was introduced that only affects malformed encoded payloads.

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2 changes: 1 addition & 1 deletion docs/core/compatibility/toc.yml
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Expand Up @@ -248,7 +248,7 @@ items:
href: core-libraries/9.0/obsolete-apis-with-custom-diagnostics.md
- name: BigInteger maximum length
href: core-libraries/9.0/biginteger-limit.md
- name: BinaryReader.GetString() returns "/uFFFD" on malformed sequences
- name: BinaryReader.ReadString() returns "/uFFFD" on malformed sequences
href: core-libraries/9.0/binaryreader.md
- name: C# overload resolution prefers `params` span-type overloads
href: core-libraries/9.0/params-overloads.md
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