3.1.0

Id Web now uses CaseSensitiveClaimsIdentity by default and provides AppContextSwitches to fallback to using ClaimsIdentity. This means that when you loopup claims with FindFirst(), FindAll() and HasClaim(), you need to provide the right casing for the claim. See PR #2977 for details.

For SN/I scenarios, Id Web's GetTokenAcquirer now sets SendX5C in particular protocols. See issue #2887 for details.
Fix for Instance/Tenant parsing for V2 authority (affected one Entra External IDs scenario). See PR #2954 for details.
Fix regex that threw a format exception: The input string " was not in a correct format when enabling same-site cookie compatibility with userAgent: "Dalvik/2.1.0 (Linux; U; Android 12; Chromecast Build/STTE.230319.008.H1). See issue #2879 for details.
Microsoft.Identity.Web 3.1.0 now has an upper bound set on its dependency on Microsoft.Identity.Abstractions to version 7x to avoid referencing Microsoft.Identity.Abstractions 8.0.0, which has an interface breaking change, not yet implemented in Microsoft.Identity.Web. See PR #2962 for details.

Fix flakey tests: #2972, #2984, #2982,
Update to AzureKeyVault@2 in AzureDevOps, #2981.
Update to .NET 9-preview7, #2980 and #2991.
It's now possible to build a specific version of Microsoft.Identity.Web based on specific versions of Microsoft.IdentityModel and Microsoft.Identity.Abstractions by specifying build variables on the dotnet pack command (MicrosoftIdentityModelVersion, MicrosoftIdentityAbstractionsVersions, and MicrosoftIdentityWebVersion): #2974, #2990

What's Changed

Add X5C to MSAuth POP by @bgavrilMS in #2950
Update CSPROJ with README by @localden in #2956
Fix Instance/Tenant Parsing for V2 Authority by @jackj-msft in #2954
Check that regex succeeded and value is an integer. by @brentschmaltz in #2958
Set upper bound on Abstractions by @westin-m in #2962
Removing 2.x versions post 3.0.0-preview1 by @JoshLozensky in #2967
Fix test instability by @keegan-caruso in #2971
Fix AT POP tests by @keegan-caruso in #2972
Update to net 9 preview 7 by @westin-m in #2980
Updating AzureKeyVault task to version 2 by @JoshLozensky in #2981
[test] updates for one build by @jennyf19 in #2974
Disable ciam test by @keegan-caruso in #2983
Ensure that SimulateOidc is built before IntegrationTests (that use it) by @jmprieur in #2984
skip more CIAM E2E tests by @jennyf19 in #2985
remove grpc in E2E test by @jennyf19 in #2986
Jennyf/fix slice by @jennyf19 in #2988
reenable other ciam test by @jennyf19 in #2989
Jennyf/client sem ver by @jennyf19 in #2990
Fix Id Web Build by @FuPingFranco in #2991
Add BannedApiAnalyzers to prevent use of ClaimsIdentity constructors and AppContextSwitches for fallback by @pmaytak in #2977

Full Changelog: 3.0.1...3.1.0