FSharp.Core 9.0.101 did not change compared to version 9.0.100. Below are the changes for FSharp.Core 9.0.100

Fixed

• Struct UnionCase doesn't seem to be a valid target for the DefaultAugmentationAttribute (Issue #17499, PR #17502)

Added

• Enable C# collection expression support for F# lists & sets. (Language suggestion #1355, RFC FS-1145 (PR#776), PR #17359)
• Add module functions for converting between 'T option and 'T voption. (PR #17436)

Changed

• Change compiler default setting realsig+ when building assemblies (Issue #17384, PR #17378)
• Change compiler default setting for compressedMetadata (Issue #17379, PR #17383)
• Enable FSharp 9.0 Language Version (Issue #17497), PR))
• Struct UnionCase doesn't seem to be a valid target for the DefaultAugmentationAttribute (Issue #17499, PR #17502)

Breaking Changes