7.0.0-preview4

7.0.0-preview4

Bug fixes:

• Add nullables to the properties in WsFederationMessage. See issue #2240 for details.
• Fix regression where JsonWebToken.TryGetPayloadValue() was not compatible with dictionary types. See issue #2246 for details.
• Fix regression where dictionary claims added to SecurityTokenDescriptor.Claims are no longer correctly serialized. See issue #2245 for details.
• Fix regression with a Y2038 bug. See issue #2261 for details.
• Fix a regression where claims with multiple values are incorrectly serialized. See #2244 for details.

Performance improvements:

• Remove sync-over-async pattern with JsonWebTokens.ValidateToken, which when in the hot path can lead to threadpool starvation. See issue #2253 for details.
• Perf testing using brenchmark dotnet and crank, similar to aspnetcore, to better gauge requests per second perf impacts. See issue #2232 for details.
• Use optimistic synchronization in JsonWebToken.Audiences. See PR for details.
• Reduce allocations when enumerating over collections. See PR for details.

Documentation:

• Fix description for JWT X5tS256 field.

Fundamentals:

• Improvements to the build script to accommodate .NET's source-build requirements. See PR for details.