Release notes from CodeConverter

v10.0.1

2026-03-01T14:17:38Z

[10.0.1] - 2026-02-28

Reintroduce legacy support for dotnet 8 and VS2022
Support slnx format 1195

VB -> C#

Fix for ReDim Preserve of array property - #1156
Fix for with block conversion with null conditional #1174
Fixes #1195

v10.0.0

2026-03-01T13:45:19Z

[10.0.0] - 2026-02-06

Support for net framework dropped. Please use an older version if you are converting projects that still use it.
dotnet 10 required to run codeconv command line tool
Improvements to codeconv tool to support converting newer dotnet versions

VB -> C#

Xor operator overloads now converted #1182

8.5.0

2022-04-10T17:13:17Z

[8.5.0] - 2022-04-10

Known issue: In VS2017, right clicking a single file to convert in the solution explorer throws an error.
Workaround: Open the file, select its whole contents, right click and convert.

Vsix

Last version supporting VS2017 and some earlier VS2019 versions (15.7-16.9)

VB -> C#

Xml Namespace Imports now converted #836
Use explicit cast when integral numeric types are casted to enum #861
Correct inconsistent casing of event handlers #854

C# -> VB

[8.4.7] - 2022-03-12

Command line no longer silently exits for dot net framework projects
Log messages now include timestamps

[8.4.6] - 2022-03-02

Vsix

VB -> C#

Fix method arguments when calling a parametrized property with named arguments. #833
Fix access modifiers for explicit interface implementations. #819
Fix code generation for explicit interface implementations. #813
Add support for converting multiple selected files and folders. #485
Replace VB-specific library methods with idiomatic framework alternatives #814
Remove redundant break expressions in switch-case statements. #432
Generate out parameter instead of ref for implementations of external methods. #831
When passing a property ByRef, don't try to assign it back afterwards #843

C# -> VB

Improve snippet detection #825

[8.4.5] - 2022-01-26

Vsix

Only trigger build for converted project where possible #816

VB -> C#

Convert Exit Try to a do while false loop with a break statement #779
Fix missing parenthesis for null coalescing operator #811
No longer throws NRE for VB Static variable without initializer. See comment on #623
Convert nested xml literals to new XElement #253

C# -> VB

[8.4.4] - 2022-01-09

Vsix

VB -> C#

No longer throws NRE for embedded resources with no LastGenOutput #804
Append CompareMethod.Text for Strings methods when needed #655
Convert op_Implicit/op_Explicit calls to casts #678
Use Conversions.ToString when concatenating a DateTime with a string #806
Ensure named arguments are correctly named when followed by an omitted argument #808
Convert static variables into fields #623
Ensure query syntax join conditions are swapped to the necessary C# order #752
Convert nested exit statements to if statements #690

C# -> VB

More terse conversion in for loop with literal end value #798

[8.4.3] - 2021-12-23

Vsix

VB -> C#

Convert extension methods on ByRef reference types to static invocations #785
Wire up events for WithEvents fields in an ancestor class #774
Only create delegating property for WithEvents fields if there is a known write usage or descendant class Due to feedback on #615

C# -> VB

[8.4.2] - 2021-12-11

Vsix

Attempt to improve VS2017 compatibility

VB -> C#

Convert with blocks using structs to a local ref variable#634
Ensure xml-doc at start of file is kept #663

C# -> VB

[8.4.1] - 2021-10-02

Vsix

VB -> C#

Convert VB exclamation mark into C# indexer #765
Deal with nullable bools in binary expressions #712
No longer tries to qualify type parameters (e.g. in generic delegates) #771

C# -> VB

[8.4.0] - 2021-09-05

Vsix

VS2017 compatibility improvement
VS2022 Preview 3.1 compatibility

VB -> C#

C# -> VB

[8.3.1] - 2021-08-22

Vsix

Provided workaround in options for some assembly loading issues #741

VB -> C#

Convert orderby distinct in linq #736
Convert nested Select queries in linq #635
Chr converted to Strings.Chr where code page aware conversion needed #745

C# -> VB

Guess some common using statements for incomplete fragments #743

[8.3.0] - 2021-07-02

Vsix

Support for VS2022

lastsupportfor/vs2017

2022-04-10T16:22:29Z

Don't require the Convert type

8.2.5

2021-06-22T14:37:07Z

VB -> C#

Prevent overrides and overloads appearing on the same property #681
Convert Select x = into let x = within Linq #717

8.1.7

2020-08-16T10:41:41Z

[8.1.7] - 2020-08-16

Timeout cosmetic operations (formatting/comments) after 15 minutes of inactivity #598

Vsix

Options page to adjust timeout

VB -> C#

Convert parameterized properties with optional parameters #597
Convert bitwise negation #599
No longer adds incorrect "base" qualification for virtual method calls #600
Don't generate unnecessary properties for WithEvents fields #572
Add type conversion where needed for externally declared loop control variable #609
Convert string operators in common cases #608
Type convert parameterized property in assignment #610

C# -> VB

[8.1.6] - 2020-07-12

Vsix

Fix file extension and location of single converted file #589

VB -> C#

Correct logic for conversion "objectWithOverloadedEquals Is Nothing" #591
Coercing enum to a string now correctly uses its numeric value #590
Correct conversion for equality of overloaded types #594
Correct conversion when for loop variable is a class member #601
Correct conversion when for loop "To" expression is a boolean #602

C# -> VB

VS 16.7 compatibility

2020-07-04T17:21:06Z

Vsix

Workaround Visual Studio 16.7+ that was causing VB->CS conversion to fail #586

VB -> C#

Handle Option Compare Text case insensitive comparisons in switch statements #579
Fix compilation error when switching with enum cases #549
Improve numeric casts #580
Add ref to conversion of RaiseEvent where needed #584
Rename clashing type memvers #420
Fix conversion for string implicitly converted to enum #476

C# -> VB

Rename explicit method implementations where needed #492
Include type information in conversion of default(someType) #486

8.1.4 Minor fixes

2020-06-26T15:59:03Z

Vsix

Fixed UnauthorizedAccessException when converting single file/snippet

VB -> C#

When converting ReDim Preserve to Array.Resize, "ref" is now added
Create delegating method for renamed implementations #443, #444

8.1.3 VB -> CS Improvements

2020-05-24T17:32:16Z

VB -> C#

Improve post-conversion experience for designer files - #569
Optimize away some redundant casts and conversions with strings/chars - #388
Improve performance of single file conversion - #546
Add AsEnumerable where needed in linq "in" clause - #544
Remove redundant empty string coalesce in string comparison - #500
Convert VB comparison operators - #396
Convert Redim Preserve of 1D array to Array.Resize - #501
Use C#7.3 compatible null check

8.1.2 VB -> CS improvements

2020-05-04T20:27:41Z

VB -> C#

Improve multi-declaration field conversion for arrays - #559
Add parentheses around ternary statement - #565
When converting ForEach loop, avoid duplicate variable compilation issue #558
Improvements to for loop with missing semantic info - #482
Fix logic issue when converting property passed byref - #324
Fix logic issue when converting expression passed in byref within conditional expression - #310
Added constructors now only added to the relevant type - not other types in the same file
Converted non-static field initializers moved to constructor - #281
Convert assignments using "Mid" built-in function
Improve conversion of array initializer types