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add Memory<T> for vb.net sample #8219

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Oct 10, 2018
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add Memory<T> for vb.net sample #8219

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add Memory<T> for vb.net sample
binh0001 Oct 10, 2018
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11 changes: 8 additions & 3 deletions docs/core/whats-new/dotnet-core-2-1.md
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@@ -1,9 +1,12 @@
---
---
title: What's new in .NET Core 2.1
description: Learn about the new features found in .NET Core 2.1.
dev_langs:
- "csharp"
- "vb"
author: rpetrusha
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I'll let @rpetrusha review this but we'd need to add the following metadata to this section

dev_langs: 
  - "csharp"
  - "vb"

ms.author: ronpet
ms.date: 06/06/2018
ms.date: 10/10/2018
---
# What's new in .NET Core 2.1

Expand Down Expand Up @@ -160,10 +163,12 @@ You can opt into tiered compilation in either of two ways.

Without these types, when passing such items as a portion of an array or a section of a memory buffer, you have to make a copy of some portion of the data before passing it to a method. These types provide a virtual view of that data that eliminates the need for the additional memory allocation and copy operations.

The following example uses a <xref:System.Span%601> instance to provide a virtual view of 10 elements of an array.
The following example uses a <xref:System.Span%601> and <xref:System.Memory%601> instance to provide a virtual view of 10 elements of an array.

[!CODE-csharp[Span\<T>](~/samples/core/whats-new/whats-new-in-21/cs/program.cs)]

[!CODE-vb[Memory\<T>](~/samples/core/whats-new/whats-new-in-21/vb/program.vb)]

### Brotli compression

.NET Core 2.1 adds support for Brotli compression and decompression. Brotli is a general-purpose lossless compression algorithm that is defined in [RFC 7932](https://www.ietf.org/rfc/rfc7932.txt) and is supported by most web browsers and major web servers. You can use the stream-based <xref:System.IO.Compression.BrotliStream?displayProperty=nameWithType> class or the high-performance span-based <xref:System.IO.Compression.BrotliEncoder?displayProperty=nameWithType> and <xref:System.IO.Compression.BrotliDecoder?displayProperty=nameWithType> classes. The following example illustrates compression with the <xref:System.IO.Compression.BrotliStream> class:
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