Windows 10: February 2, 2021 KB 4598299 Cumulative Update Preview for .NET is Now Available

Leprechaun J · Feb 3, 2021

Here Are the details for this Cumulative Update

:)

Brink · Feb 3, 2021

.NET Framework February 2019 Preview of Quality Rollup

Today, we released the February 2019 Preview of Quality Rollup.

Quality and Reliability

This release contains the following quality and reliability improvements.

CLR

Addresses an issue in System.Threading.Timer where a single global queue that was protected by a single process-wide lock causing a issues with scalability where Timers are used frequently on multi-CPU machine. The fix can be opted into with an AppContext switch below. See instructions for enabling the switch. [750048]

Switch name: Switch.System.Threading.UseNetCoreTimer

Switch value to enable: true
Don’t rely on applying the setting programmatically – the switch value is read only once per AppDomain at the time when the System.Threading.Timer type is loaded.

SQL

Addresses an issue that caused compatibility breaks seen in some System.Data.SqlClient usage scenarios. [721209]

WPF

Improved the memory allocation and cleanup scheduling behavior of the weak-event pattern. The fix can be opted into with an AppContext switch below. See instructions for enabling the switch. [676441]

Switch name: Switch.MS.Internal.EnableWeakEventMemoryImprovements

Switch name: Switch.MS.Internal.EnableCleanupSchedulingImprovements

Switch value to enable: true

Getting the Update

The Preview of Quality Rollup is available via Windows Update, Windows Server Update Services, and Microsoft Update Catalog.

Microsoft Update Catalog

You can get the update via the Microsoft Update Catalog. For Windows 10 update 1607, Windows 10 update 1703, Windows 10 update 1709 and Windows update 1803, the .NET Framework updates are part of the Windows 10 Monthly Rollup.

The following table is for Windows 10 and Windows Server 2016+ versions.

[table][tr]Product Version Cumulative Update KB [/tr] [tr][td]Windows 10 1803 (April 2018 Update)[/td] [td]Catalog 4487029[/td] [/tr] [tr][td].NET Framework 3.5, 4.7.2[/td] [td]4487029[/td] [/tr] [tr][td]Windows 10 1709 (Fall Creators Update)[/td] [td]Catalog 4487021[/td] [/tr] [tr][td].NET Framework 3.5, 4.7.1, 4.7.2[/td] [td]4487021[/td] [/tr] [tr][td]Windows 10 1703 (Creators Update)[/td] [td]Catalog 4487011[/td] [/tr] [tr][td].NET Framework 3.5, 4.7, 4.7.1, 4.7.2[/td] [td]4487011[/td] [/tr] [tr][td]Windows 10 1607 (Anniversary Update) Windows Server 2016[/td] [td]Catalog 4487006[/td] [/tr] [tr][td].NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2[/td] [td]4487006[/td] [/tr] [tr][/tr] [/table]

The following table is for earlier Windows and Windows Server versions.

[table][tr]Product Version Preview of Quality Rollup KB [/tr] [tr][td]Windows 8.1 Windows RT 8.1 Windows Server 2012 R2[/td] [td]Catalog 4487258[/td] [/tr] [tr][td].NET Framework 3.5[/td] [td]Catalog 4483459[/td] [/tr] [tr][td].NET Framework 4.5.2[/td] [td]Catalog 4483453[/td] [/tr] [tr][td].NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2[/td] [td]Catalog 4486545[/td] [/tr] [tr][td]Windows Server 2012[/td] [td]Catalog 4487257[/td] [/tr] [tr][td].NET Framework 3.5[/td] [td]Catalog 4483456[/td] [/tr] [tr][td].NET Framework 4.5.2[/td] [td]Catalog 4483454[/td] [/tr] [tr][td].NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2[/td] [td]Catalog 4486544[/td] [/tr] [tr][td]Windows 7 SP1 Windows Server 2008 R2 SP1[/td] [td]Catalog 4487256[/td] [/tr] [tr][td].NET Framework 3.5.1[/td] [td]Catalog 4483458[/td] [/tr] [tr][td].NET Framework 4.5.2[/td] [td]Catalog 4483455[/td] [/tr] [tr][td].NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2[/td] [td]Catalog 4486546[/td] [/tr] [tr][td]Windows Server 2008[/td] [td]Catalog 4487259[/td] [/tr] [tr][td].NET Framework 2.0, 3.0[/td] [td]Catalog 4483457[/td] [/tr] [tr][td].NET Framework 4.5.2[/td] [td]Catalog 4483455[/td] [/tr] [tr][td].NET Framework 4.6[/td] [td]Catalog 4486546[/td] [/tr] [/table]
Click to expand...

Source: .NET Framework February 2019 Preview of Quality Rollup | .NET Blog

Brink · Feb 3, 2021

.NET Framework February 2019 Preview of Quality Rollup

Today, we released the February 2019 Preview of Quality Rollup.

Quality and Reliability

This release contains the following quality and reliability improvements.

CLR

Addresses an issue in System.Threading.Timer where a single global queue that was protected by a single process-wide lock causing a issues with scalability where Timers are used frequently on multi-CPU machine. The fix can be opted into with an AppContext switch below. See instructions for enabling the switch. [750048]

Switch name: Switch.System.Threading.UseNetCoreTimer

Switch value to enable: true
Don’t rely on applying the setting programmatically – the switch value is read only once per AppDomain at the time when the System.Threading.Timer type is loaded.

SQL

Addresses an issue that caused compatibility breaks seen in some System.Data.SqlClient usage scenarios. [721209]

WPF

Improved the memory allocation and cleanup scheduling behavior of the weak-event pattern. The fix can be opted into with an AppContext switch below. See instructions for enabling the switch. [676441]

Switch name: Switch.MS.Internal.EnableWeakEventMemoryImprovements

Switch name: Switch.MS.Internal.EnableCleanupSchedulingImprovements

Switch value to enable: true

Getting the Update

The Preview of Quality Rollup is available via Windows Update, Windows Server Update Services, and Microsoft Update Catalog.

Microsoft Update Catalog

You can get the update via the Microsoft Update Catalog. For Windows 10 update 1607, Windows 10 update 1703, Windows 10 update 1709 and Windows update 1803, the .NET Framework updates are part of the Windows 10 Monthly Rollup.

The following table is for Windows 10 and Windows Server 2016+ versions.

[table][tr]Product Version Cumulative Update KB [/tr] [tr][td]Windows 10 1803 (April 2018 Update)[/td] [td]Catalog 4487029[/td] [/tr] [tr][td].NET Framework 3.5, 4.7.2[/td] [td]4487029[/td] [/tr] [tr][td]Windows 10 1709 (Fall Creators Update)[/td] [td]Catalog 4487021[/td] [/tr] [tr][td].NET Framework 3.5, 4.7.1, 4.7.2[/td] [td]4487021[/td] [/tr] [tr][td]Windows 10 1703 (Creators Update)[/td] [td]Catalog 4487011[/td] [/tr] [tr][td].NET Framework 3.5, 4.7, 4.7.1, 4.7.2[/td] [td]4487011[/td] [/tr] [tr][td]Windows 10 1607 (Anniversary Update) Windows Server 2016[/td] [td]Catalog 4487006[/td] [/tr] [tr][td].NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.2[/td] [td]4487006[/td] [/tr] [tr][/tr] [/table]

The following table is for earlier Windows and Windows Server versions.

[table][tr]Product Version Preview of Quality Rollup KB [/tr] [tr][td]Windows 8.1 Windows RT 8.1 Windows Server 2012 R2[/td] [td]Catalog 4487258[/td] [/tr] [tr][td].NET Framework 3.5[/td] [td]Catalog 4483459[/td] [/tr] [tr][td].NET Framework 4.5.2[/td] [td]Catalog 4483453[/td] [/tr] [tr][td].NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2[/td] [td]Catalog 4486545[/td] [/tr] [tr][td]Windows Server 2012[/td] [td]Catalog 4487257[/td] [/tr] [tr][td].NET Framework 3.5[/td] [td]Catalog 4483456[/td] [/tr] [tr][td].NET Framework 4.5.2[/td] [td]Catalog 4483454[/td] [/tr] [tr][td].NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2[/td] [td]Catalog 4486544[/td] [/tr] [tr][td]Windows 7 SP1 Windows Server 2008 R2 SP1[/td] [td]Catalog 4487256[/td] [/tr] [tr][td].NET Framework 3.5.1[/td] [td]Catalog 4483458[/td] [/tr] [tr][td].NET Framework 4.5.2[/td] [td]Catalog 4483455[/td] [/tr] [tr][td].NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2[/td] [td]Catalog 4486546[/td] [/tr] [tr][td]Windows Server 2008[/td] [td]Catalog 4487259[/td] [/tr] [tr][td].NET Framework 2.0, 3.0[/td] [td]Catalog 4483457[/td] [/tr] [tr][td].NET Framework 4.5.2[/td] [td]Catalog 4483455[/td] [/tr] [tr][td].NET Framework 4.6[/td] [td]Catalog 4486546[/td] [/tr] [/table]
Click to expand...

Source: .NET Framework February 2019 Preview of Quality Rollup | .NET Blog

Brink · Feb 3, 2021

.NET Framework July 2017 Cumulative Quality Update for Windows 10

Today, we are releasing a new Cumulative Quality Update for the .NET Framework. It is specific to Windows 10 build 1703 (Creators Update).

Previously released security and quality updates are included in this release, including the July 2017 Security and Quality Rollup, the July 2017 Preview of Quality Rollup and the June 2017 Cumulative Quality Update for Windows 10.

Note: This release is considered a July release even though it is being released in August.

Quality and Reliability

The following improvements are included in this release. Most changes are for the .NET Framework 4.7. .NET Framework 3.5 changes are called out specifically.

ASP.NET

.NET Session State throttles change requests when several requests for the same session object arrive on the server, with .NET Framework 3.5 [447143].

CLR

CRWLock::StaticAcquireWriterLock() never returns if Int32.MaxValue number of ReaderWriterLock objects are created, with .NET Framework 3.5 [242568].

Dynamic method compilation may fail due to out of memory if memory for the code is not available near its precode [394998].

Memory leak in AppDomain::m_clsidHashMap [431586].

EETypeHashTable lookups can deadlock with GC during comparison with unrestored persisted TypeHandles [435006]

Data

SqlConnection object memory leak [444016].

System.Data.SqlClient: Errors due to undersized prelogin packet data buffer [445492].

Performance improvements in Entity Framework [445511].

Management

Reboot method of Win32_OperatingSystem has Privilege not held exception, with .NET Framework 3.5 and 4.7 [441904].

Windows forms

MdiWindowListItem remove MDI from list after closing cancellation [396476].

Excessive object creation in a performance-critical code-path leading to performance regressions and/or displaying empty UI and/or exhausting GDI+ handles [452048].

Windows Presentation Foundation (WPF)

NullReferenceException thrown from PresentationFramework.dll during SpellCheck operations after SpellCheck.CustomDictionaries.Clear() is called programmatically [432174].

XML

Incorrect Validation logic is applied when handling the <xsd:whiteSpace value=”collapse”/> directive in System.Xml [227903, 440921, 440932]

Getting the Update

The July 2017 Cumulative Quality Update is available via Windows Update, Windows Server Update Services and Microsoft Update Catalog.

Docker Images

The .NET Framework Docker images have not been updated for this release.

Downloading KBs from Microsoft Update Catalog

You can download patches from the table below. See .NET Framework Monthly Rollups Explained for an explanation on how to use this table to download patches from Microsoft Update Catalog.

[table][tr]Product Version Cumulative Quality Update KB [/tr] [tr][td]Windows 10 Creators Update[/td] [td]Catalog 4032188[/td] [/tr] [tr][/tr] [tr][td].NET Framework 4.7[/td] [td]4032188[/td] [/tr] [tr][td].NET Framework 3.5[/td] [td]4032188[/td] [/tr] [/table]
Click to expand...

Source: .NET Framework July 2017 Cumulative Quality Update for Windows 10 | .NET Blog

Windows 10: February 2, 2021 KB 4598299 Cumulative Update Preview for .NET is Now Available

February 2, 2021 KB 4598299 Cumulative Update Preview for .NET is Now Available

February 2, 2021 KB 4598299 Cumulative Update Preview for .NET is Now Available

February 2, 2021 KB 4598299 Cumulative Update Preview for .NET is Now Available

February 2, 2021 KB 4598299 Cumulative Update Preview for .NET is Now Available - Similar Threads - February 2021 4598299

June 21, 2021-KB5003537 Cumulative Update Preview for .NET Framework 3.5 and 4.8 for...

Strange problems with the Cumulative Update Previews installed 25th February 2021

Cumulative Update February 2021 - Breaks Windows Hello

Cumulative updates February 2021

.NET February 2021 Updates - 5.0.3, 3.1.12, 2.1.25

Cumulative updates February 2021

Announcing .NET 5.0 Preview 3 now available

Announcing .NET 5.0 Preview 2 now available

Office 2016 Preview—update 2 now available