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Merge pull request #1753 from fsprojects/repo-assist/perf-htmlcharrefs-dict-2026-04-20-4e4998b335019aeb
[Repo Assist] perf: HtmlCharRefs entity lookup uses Dictionary for O(1) instead of Map O(log n)
2 parents b40f167 + 1c2912c commit e45a7b6

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‎RELEASE_NOTES.md‎

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# Release Notes
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## 8.1.10 - Apr 20 2026
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- Performance: `HtmlCharRefs` entity lookup now uses a `Dictionary<string, string>` instead of an F# `Map`, giving O(1) lookups instead of O(log n) for ~2230 HTML named-entity entries. Also avoids a repeated `char[]` allocation in the `TrimEnd` call inside the active pattern.
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## 8.1.9 - Apr 18 2026
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- Fix: `Caching.hashString` now disposes the `SHA1` instance after use; on .NET 5+ uses `SHA1.HashData` (static, pool-backed) to avoid allocation entirely (PR #1745)

‎src/AssemblyInfo.Csv.Core.fs‎

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[<assembly: AssemblyTitleAttribute("FSharp.Data.Csv.Core")>]
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[<assembly: AssemblyProductAttribute("FSharp.Data")>]
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[<assembly: AssemblyDescriptionAttribute("Library of F# type providers and data access tools")>]
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[<assembly: AssemblyVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyVersionAttribute("8.1.10.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.10.0")>]
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do ()
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module internal AssemblyVersionInformation =
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let [<Literal>] AssemblyTitle = "FSharp.Data.Csv.Core"
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let [<Literal>] AssemblyProduct = "FSharp.Data"
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let [<Literal>] AssemblyDescription = "Library of F# type providers and data access tools"
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let [<Literal>] AssemblyVersion = "8.1.9.0"
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let [<Literal>] AssemblyFileVersion = "8.1.9.0"
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let [<Literal>] AssemblyVersion = "8.1.10.0"
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let [<Literal>] AssemblyFileVersion = "8.1.10.0"

‎src/AssemblyInfo.DesignTime.fs‎

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[<assembly: AssemblyTitleAttribute("FSharp.Data.DesignTime")>]
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[<assembly: AssemblyProductAttribute("FSharp.Data")>]
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[<assembly: AssemblyDescriptionAttribute("Library of F# type providers and data access tools")>]
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[<assembly: AssemblyVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyVersionAttribute("8.1.10.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.10.0")>]
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do ()
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module internal AssemblyVersionInformation =
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let [<Literal>] AssemblyTitle = "FSharp.Data.DesignTime"
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let [<Literal>] AssemblyProduct = "FSharp.Data"
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let [<Literal>] AssemblyDescription = "Library of F# type providers and data access tools"
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let [<Literal>] AssemblyVersion = "8.1.9.0"
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let [<Literal>] AssemblyFileVersion = "8.1.9.0"
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let [<Literal>] AssemblyVersion = "8.1.10.0"
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let [<Literal>] AssemblyFileVersion = "8.1.10.0"

‎src/AssemblyInfo.Html.Core.fs‎

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[<assembly: AssemblyTitleAttribute("FSharp.Data.Html.Core")>]
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[<assembly: AssemblyProductAttribute("FSharp.Data")>]
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[<assembly: AssemblyDescriptionAttribute("Library of F# type providers and data access tools")>]
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[<assembly: AssemblyVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyVersionAttribute("8.1.10.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.10.0")>]
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do ()
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module internal AssemblyVersionInformation =
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let [<Literal>] AssemblyTitle = "FSharp.Data.Html.Core"
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let [<Literal>] AssemblyProduct = "FSharp.Data"
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let [<Literal>] AssemblyDescription = "Library of F# type providers and data access tools"
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let [<Literal>] AssemblyVersion = "8.1.9.0"
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let [<Literal>] AssemblyFileVersion = "8.1.9.0"
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let [<Literal>] AssemblyVersion = "8.1.10.0"
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let [<Literal>] AssemblyFileVersion = "8.1.10.0"

‎src/AssemblyInfo.Http.fs‎

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[<assembly: AssemblyTitleAttribute("FSharp.Data.Http")>]
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[<assembly: AssemblyProductAttribute("FSharp.Data")>]
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[<assembly: AssemblyDescriptionAttribute("Library of F# type providers and data access tools")>]
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[<assembly: AssemblyVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyVersionAttribute("8.1.10.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.10.0")>]
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do ()
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module internal AssemblyVersionInformation =
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let [<Literal>] AssemblyTitle = "FSharp.Data.Http"
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let [<Literal>] AssemblyProduct = "FSharp.Data"
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let [<Literal>] AssemblyDescription = "Library of F# type providers and data access tools"
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let [<Literal>] AssemblyVersion = "8.1.9.0"
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let [<Literal>] AssemblyFileVersion = "8.1.9.0"
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let [<Literal>] AssemblyVersion = "8.1.10.0"
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let [<Literal>] AssemblyFileVersion = "8.1.10.0"

‎src/AssemblyInfo.Json.Core.fs‎

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[<assembly: AssemblyTitleAttribute("FSharp.Data.Json.Core")>]
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[<assembly: AssemblyProductAttribute("FSharp.Data")>]
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[<assembly: AssemblyDescriptionAttribute("Library of F# type providers and data access tools")>]
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[<assembly: AssemblyVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyVersionAttribute("8.1.10.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.10.0")>]
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do ()
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module internal AssemblyVersionInformation =
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let [<Literal>] AssemblyTitle = "FSharp.Data.Json.Core"
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let [<Literal>] AssemblyProduct = "FSharp.Data"
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let [<Literal>] AssemblyDescription = "Library of F# type providers and data access tools"
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let [<Literal>] AssemblyVersion = "8.1.9.0"
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let [<Literal>] AssemblyFileVersion = "8.1.9.0"
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let [<Literal>] AssemblyVersion = "8.1.10.0"
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let [<Literal>] AssemblyFileVersion = "8.1.10.0"

‎src/AssemblyInfo.Runtime.Utilities.fs‎

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[<assembly: AssemblyTitleAttribute("FSharp.Data.Runtime.Utilities")>]
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[<assembly: AssemblyProductAttribute("FSharp.Data")>]
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[<assembly: AssemblyDescriptionAttribute("Library of F# type providers and data access tools")>]
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[<assembly: AssemblyVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyVersionAttribute("8.1.10.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.10.0")>]
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do ()
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module internal AssemblyVersionInformation =
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let [<Literal>] AssemblyTitle = "FSharp.Data.Runtime.Utilities"
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let [<Literal>] AssemblyProduct = "FSharp.Data"
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let [<Literal>] AssemblyDescription = "Library of F# type providers and data access tools"
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let [<Literal>] AssemblyVersion = "8.1.9.0"
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let [<Literal>] AssemblyFileVersion = "8.1.9.0"
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let [<Literal>] AssemblyVersion = "8.1.10.0"
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let [<Literal>] AssemblyFileVersion = "8.1.10.0"

‎src/AssemblyInfo.WorldBank.Core.fs‎

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[<assembly: AssemblyTitleAttribute("FSharp.Data.WorldBank.Core")>]
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[<assembly: AssemblyProductAttribute("FSharp.Data")>]
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[<assembly: AssemblyDescriptionAttribute("Library of F# type providers and data access tools")>]
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[<assembly: AssemblyVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyVersionAttribute("8.1.10.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.10.0")>]
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do ()
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module internal AssemblyVersionInformation =
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let [<Literal>] AssemblyTitle = "FSharp.Data.WorldBank.Core"
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let [<Literal>] AssemblyProduct = "FSharp.Data"
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let [<Literal>] AssemblyDescription = "Library of F# type providers and data access tools"
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let [<Literal>] AssemblyVersion = "8.1.9.0"
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let [<Literal>] AssemblyFileVersion = "8.1.9.0"
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let [<Literal>] AssemblyVersion = "8.1.10.0"
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let [<Literal>] AssemblyFileVersion = "8.1.10.0"

‎src/AssemblyInfo.Xml.Core.fs‎

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[<assembly: AssemblyTitleAttribute("FSharp.Data.Xml.Core")>]
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[<assembly: AssemblyProductAttribute("FSharp.Data")>]
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[<assembly: AssemblyDescriptionAttribute("Library of F# type providers and data access tools")>]
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[<assembly: AssemblyVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyVersionAttribute("8.1.10.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.10.0")>]
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do ()
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module internal AssemblyVersionInformation =
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let [<Literal>] AssemblyTitle = "FSharp.Data.Xml.Core"
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let [<Literal>] AssemblyProduct = "FSharp.Data"
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let [<Literal>] AssemblyDescription = "Library of F# type providers and data access tools"
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let [<Literal>] AssemblyVersion = "8.1.9.0"
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let [<Literal>] AssemblyFileVersion = "8.1.9.0"
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let [<Literal>] AssemblyVersion = "8.1.10.0"
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let [<Literal>] AssemblyFileVersion = "8.1.10.0"

‎src/AssemblyInfo.fs‎

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[<assembly: AssemblyTitleAttribute("FSharp.Data")>]
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[<assembly: AssemblyProductAttribute("FSharp.Data")>]
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[<assembly: AssemblyDescriptionAttribute("Library of F# type providers and data access tools")>]
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[<assembly: AssemblyVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.9.0")>]
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[<assembly: AssemblyVersionAttribute("8.1.10.0")>]
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[<assembly: AssemblyFileVersionAttribute("8.1.10.0")>]
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do ()
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module internal AssemblyVersionInformation =
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let [<Literal>] AssemblyTitle = "FSharp.Data"
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let [<Literal>] AssemblyProduct = "FSharp.Data"
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let [<Literal>] AssemblyDescription = "Library of F# type providers and data access tools"
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let [<Literal>] AssemblyVersion = "8.1.9.0"
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let [<Literal>] AssemblyFileVersion = "8.1.9.0"
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let [<Literal>] AssemblyVersion = "8.1.10.0"
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let [<Literal>] AssemblyFileVersion = "8.1.10.0"

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