Fickl 0.10.1

What's Changed

• chore: land #457, #458 by @shayanhabibi in #459
• fix(js/ts): support BitConverter's unsigned and single bit casts by @shayanhabibi in #458
• fix(js/ts): wrap uint32 addition, subtraction and multiplication by @shayanhabibi in #457
• chore(all): prepare Fickl 0.10.1 release by @shayanhabibi in #460

Full Changelog: v0.10.0...v0.10.1

Fickl 0.10.0

What's Changed

• fix(docs): lay out cards in a grid and stop clipping the hero glow by @shayanhabibi in #436
• chore: land #445, #437, #438, #439, #440, #443 by @shayanhabibi in #447
• fix(js/ts): index an IReadOnlyList without its .NET member name by @shayanhabibi in #437
• fix(core): make Fickl.Core's JS error types non-nullable by @shayanhabibi in #438
• docs: explain string + with a null operand, with and without nullness by @shayanhabibi in #439
• ci: remove the PR title linter by @shayanhabibi in #440
• feat: add the Fickl.Sdk package to compile as part of dotnet build by @shayanhabibi in #443
• feat(js/ts): compile repeated copies of a wide record through a generated copier by @shayanhabibi in #445
• chore: land #448 by @shayanhabibi in #449
• feat(cli): turn the package cache off by default in CI by @shayanhabibi in #448
• chore: land #451 by @shayanhabibi in #452
• feat(js): reflect StringEnum unions with their runtime values as case names by @shayanhabibi in #451
• chore: land #453 by @shayanhabibi in #454
• fix(ts): type a StringEnum case as its enum inside tuples by @shayanhabibi in #453
• chore: land #455 by @shayanhabibi in #456
• chore(all): prepare Fickl 0.10.0 release by @shayanhabibi in #455

Full Changelog: v0.9.0...v0.10.0

Fickl 0.9.0

Changes that can affect existing code

• decimal is a native BigInt instead of big.js (#320). JavaScript that calls big.js methods on an F# decimal, such as d.toFixed(2), or reads its c/e/s fields, no longer works. Decimal arithmetic now matches .NET where it did not, and is faster.
• A single-parameter [<JSX.Component>] passed as a render prop is passed as itself, not wrapped in a lambda (#310).
• Option-typed interface properties are optional in TypeScript output (#105).
• The project's LangVersion is enforced, including for package sources compiled with it (#255).
• Same-file extensions of an [<AttachMembers>] class are attached to it, not exported as module functions (#285).

Documentation is now at https://shayanhabibi.github.io/fickl/ (#430).

What's Changed

• chore: land #258, #256, #257 by @shayanhabibi in #325
• fix(js/ts): report Emit $N! with an argument that is not a string literal by @shayanhabibi in #256
• chore: merge upstream Fable main (17 commits) by @shayanhabibi in #258
• feat(js/ts): support and! in jsAsync and add a promise alias by @shayanhabibi in #257
• chore: land #330, #331, #332, #333 by @shayanhabibi in #335
• chore: merge upstream Fable main (f51333f) by @shayanhabibi in #330
• fix(js/ts): compute float range items from the start by @shayanhabibi in #331
• fix(js/ts): keep the offset when DateTimeOffset.Parse reads an ISO string by @shayanhabibi in #332
• fix(js/ts): do not skip a run that follows a failed compilation by @shayanhabibi in #333
• chore: land #338 by @shayanhabibi in #339
• feat(js/ts): add --checkedDivision to raise DivideByZeroException by @shayanhabibi in #338
• chore: land #340, #341, #342 by @shayanhabibi in #344
• fix(js/ts): reject out-of-range day, month and time in DateTime parsing by @shayanhabibi in #340
• fix(js/ts): make the members of a failed Regex match null-safe by @shayanhabibi in #341
• fix(js/ts): support NumberStyles in BigInteger.Parse and TryParse by @shayanhabibi in #342
• chore: land #345 by @shayanhabibi in #346
• fix(js/ts): treat a null string | null operand as empty in concatenation by @shayanhabibi in #345
• chore: land #347, #348, #349, #350, #351, #352 by @shayanhabibi in #353
• fix(js/ts): report unsupported DateTime members at compile time by @shayanhabibi in #347
• fix(ts): annotate IDictionary<'K,'V> as IMap<K, V> instead of any by @shayanhabibi in #348
• fix(js/ts): implement Match.NextMatch() by @shayanhabibi in #349
• fix(js/ts): emit root-absolute import paths as written by @shayanhabibi in #350
• fix(cli): regenerate an output file that was deleted by @shayanhabibi in #351
• fix(js/ts): support tupled and curried functions in importValueDynamic by @shayanhabibi in #352
• chore: land #354, #355, #356, #357, #358 by @shayanhabibi in #359
• fix(js/ts): honour [] when printing by @shayanhabibi in #355
• fix(cli): explain an undefined name caused by an assembly-level AutoOpen by @shayanhabibi in #356
• fix(js/ts): use a custom operator of an erased union on constructed operands by @shayanhabibi in #357
• fix(js/ts): give function and delegate overloads different names by @shayanhabibi in #358
• fix(ts): type the static singletons of fieldless union cases by @shayanhabibi in #354
• chore: land #360, #361, #362, #363, #364, #365 by @shayanhabibi in #366
• fix(js/ts): keep union and record equality across hot reloads by @shayanhabibi in #360
• fix(cli): keep watching when a source file is briefly locked by @shayanhabibi in #361
• fix(js/ts): allow referencing a project that has an [] by @shayanhabibi in #362
• fix(js/ts): support functions with more than 20 curried arguments by @shayanhabibi in #363
• fix(js/ts): reject signs and prefixes .NET rejects when parsing integers by @shayanhabibi in #364
• fix(js/ts): uncurry a function that reaches ==> or ?<- through a parameter by @shayanhabibi in #365
• chore: land #367, #368, #369, #370, #371, #372 by @shayanhabibi in #373
• fix(js/ts): report a constructor call on an [] class at compile time by @shayanhabibi in #367
• fix(ts): emit a cast for dynamic access, unbox and !! by @shayanhabibi in #368
• fix(js/ts): pass the member's own name to a ReflectedDecorator by @shayanhabibi in #369
• fix(js/ts): give anonymous record types a Name and FullName by @shayanhabibi in #370
• fix(js/ts): sort strings like String.CompareTo in the .NET comparer paths by @shayanhabibi in #371
• fix(js/ts): compile for i in a .. step .. b with a constant step to a loop by @shayanhabibi in #372
• chore: land #374, #375, #376, #377, #378 by @shayanhabibi in #379
• fix(js/ts): compile explicit constructors with a BCL base or [] correctly by @shayanhabibi in #375
• fix(js/ts): read fields of a mutable struct through its address correctly by @shayanhabibi in #377
• fix(cli): honour the project's LangVersion by @shayanhabibi in #378
• fix(ts): emit valid type arguments for an SRTP call to a generic static member by @shayanhabibi in #374
• fix(js/ts): keep sub-millisecond ticks and the Int64 limits in TimeSpan by @shayanhabibi in #376
• chore: land #380, #381, #382, #383, #384, #385 by @shayanhabibi in #386
• feat(js/ts): attach same-file extension members of [] classes by @shayanhabibi in #385
• fix(js/ts): resolve a recursive trait call that ends in an overload taking obj by @shayanhabibi in #380
• feat(js/ts): accept conditional props in JSX.create by @shayanhabibi in #381
• feat(js/ts): map InnerException to Error.cause and AggregateException to AggregateError by @shayanhabibi in #382
• feat(js/ts): support two-dimensional arrays by @shayanhabibi in #383
• feat(ts): declare option-typed interface properties as optional by @shayanhabibi in #384
• chore: land #387, #388, #389, #390 by @shayanhabibi in #391
• fix(js/ts): reject date and time members the runtime does not implement by @shayanhabibi in #387
• feat(js/ts): flatten yield! of static lists in createObj into one object literal by @shayanhabibi in #388
• feat(ts): add erased intersection types I2, I3 and I4 to Fickl.Core by @shayanhabibi in #389
• feat(ts): add a typed constructor type, JsConstructor<'T>, to Fickl.Core by @shayanhabibi in #390
• chore: land #392, #393, #394, #395, #396 by @shayanhabibi in #397
• feat(js/ts): add jsSpread and jsMerge for structural copies of JS objects by @shayanhabibi in #392
• feat(js/ts): support System.Text.Rune by @shayanhabibi in #394
• docs(js/ts): explain the JSX props list rules and link the page from its errors by @shayanhabibi in #395
• feat(js): re-export an imported member directly by @shayanhabibi in #393
• feat(js/ts): support the System.Array.Sort overloads and System.Numerics.Complex by @shayanhabibi in #396
• chore: land #399, #400, #401, #402, #403, #404, #405 by @shayanhabibi in #406
• feat(js/ts): support UnionCaseInfo.GetCustomAttributes by @shayanhabibi in #399
• test(js): run the date and time tests under fixed non-UTC time zones by @shayanhabibi in #400
• feat(js/ts...

Fickl 0.8.0

What's Changed

• fix(ts): emit override on members that hide a base class member by @shayanhabibi in #217
• feat(js/ts): opt-in for F# exceptions to be real JS Errors by @shayanhabibi in #211
• feat(js/ts): catch JS-thrown values idiomatically by @shayanhabibi in #213
• feat(ts): EmitType attribute writes a TypeScript type verbatim by @shayanhabibi in #212
• feat(ts): Partial/Required/Readonly, partial, and satisfies for jsOptions by @shayanhabibi in #214
• feat(ts): readonly collections in annotations and a ReadonlyArray binding by @shayanhabibi in #216
• feat(ts): Fickl.Core.unknown is annotated unknown in TypeScript signatures by @shayanhabibi in #219
• feat(ts): type predicate and assertion signatures by @shayanhabibi in #215
• feat(ts): emit F# enums as TypeScript enums and bind imported string enums by @shayanhabibi in #218
• ci: run the full suite only on ready PRs, and other targets only for releases by @shayanhabibi in #220
• fix(all): honor fable-disable edits made while watching by @shayanhabibi in #221
• chore(all): land batch 2026-10-31 by @shayanhabibi in #231
• test(ts): cover option fields of anonymous records under exactOptionalPropertyTypes by @shayanhabibi in #224
• fix(ts): keep | null on F# nullable reference types by @shayanhabibi in #226
• feat(js/ts): WeakReference compiles to WeakRef, and a FinalizationRegistry binding by @shayanhabibi in #227
• fix(ts): fable-library type-checks under noUncheckedIndexedAccess by @shayanhabibi in #222
• feat(js/ts): bridge CancellationToken and AbortSignal by @shayanhabibi in #223
• feat(js/ts): property-key types keyof<'T> and keyof<'T, 'R> in Fickl.Core by @shayanhabibi in #225
• feat(js/ts): ArraySegment as a typed-array view, and BigUint64Array by @shayanhabibi in #228
• feat(js/ts): Record<'K, 'V>, ReadonlyRecord and PropertyRecord in Fickl.Core by @shayanhabibi in #229
• feat(ts): valueof<'T> for T[keyof T] with an indexed-access TypeScript type by @shayanhabibi in #230
• chore(all): land batch 2026-10-31 (2) by @shayanhabibi in #242
• feat(js/ts): tagged template literals from F# interpolated strings by @shayanhabibi in #232
• feat(js/ts): branded primitives string<'m>, bool<'m> and char<'m> in Fickl.Core by @shayanhabibi in #233
• feat(js/ts): attach members of classes that inherit a JS class by @shayanhabibi in #234
• feat(js/ts): Proxy and Reflect bindings with a typed handler by @shayanhabibi in #235
• feat(js/ts): EventTarget and Node.js emitter events as F# IEvent by @shayanhabibi in #236
• feat(js/ts): callable objects with properties and methods by @shayanhabibi in #237
• feat(js/ts): import attributes on static and dynamic imports by @shayanhabibi in #238
• feat(js/ts): top-level await for module values with JS.awaitTopLevel by @shayanhabibi in #239
• feat(js/ts): round-trip F# values through structuredClone and postMessage by @shayanhabibi in #240
• feat(js/ts): compile let fields of JS subclasses to #private fields by @shayanhabibi in #241
• chore(all): land batch 2026-10-31-3 by @shayanhabibi in #252
• fix(ts): keep a single-use ResizeArray bound outside the loop that uses it by @shayanhabibi in #243
• fix(ts): declare the static fields of a union class by @shayanhabibi in #244
• fix(ts): type a getter returning an imported value with its property type by @shayanhabibi in #245
• fix(ts): invoke a generic delegate without its type arguments by @shayanhabibi in #246
• fix(ts): make F# arrays of non-numbers assignable to TypeScript T[] by @shayanhabibi in #248
• feat(ts): labelled and optional tuple elements from erased single-case unions by @shayanhabibi in #249
• feat(js/ts): new.target in constructors with JS.newTarget and JS.isNewTarget by @shayanhabibi in #250
• feat(ts): emit global and module augmentations by @shayanhabibi in #251
• feat(ts): polymorphic this return types for fluent interfaces by @shayanhabibi in #247
• chore(all): prepare Fickl 0.8.0 release by @shayanhabibi in #253

Full Changelog: v0.7.4...v0.8.0

Fickl 0.7.4

What's Changed

• fix(js/ts): implement JS.AsyncIterable under Symbol.asyncIterator by @shayanhabibi in #180
• chore: Bump the all-nuget group with 7 updates by @dependabot[bot] in #136
• fix(js/ts): report nested paths passed to nameofLambda by @shayanhabibi in #181
• fix(ts): type StringEnum cases by their CompiledValue by @shayanhabibi in #182
• fix(ts): support CompiledValue tags in TypeScriptTaggedUnion by @shayanhabibi in #185
• fix(js/ts): only treat Fable.Core's own Fable.Core.JS types as globals by @shayanhabibi in #183
• fix(ts): declare Emit*-bound interface members by their JS shape by @shayanhabibi in #184
• fix(ts): print annotation-only imports as type-only imports by @shayanhabibi in #186
• style(all): format Main.fs for Fantomas 8.1.0 by @shayanhabibi in #188
• test(ts): expect a type-only import in the emitMemberSignatures snapshot by @shayanhabibi in #191
• test(js): stop SRTP edge case racing the tracked-calls counter by @shayanhabibi in #189
• fix(ts): type getEnumUnderlyingType as TypeInfo by @shayanhabibi in #206
• fix(ts): read EntryPoint arguments through globalThis by @shayanhabibi in #207
• fix(ts): emit the override modifier by @shayanhabibi in #208
• chore: merge upstream fable-compiler/fable main by @shayanhabibi in #205
• test(ts): type-check TS output under stricter compiler options by @shayanhabibi in #190
• chore: prepare Fickl 0.7.4 release by @shayanhabibi in #209
• docs: list the functionality Fickl adds to Fable in the README by @shayanhabibi in #210

New Contributors

• @dependabot[bot] made their first contribution in #136

Full Changelog: v0.7.3...v0.7.4

Fickl 0.7.3

What's Changed

• fix(js/ts): hold tagged inline interface payloads directly; add copy representations by @shayanhabibi in #138
• fix(ts): keep the declared union type on TypeScriptTaggedUnion constructions by @shayanhabibi in #139
• fix(all): keep local project references out of package detection by @shayanhabibi in #140

Full Changelog: v0.7.2...v0.7.3

Fickl 0.7.2

What's Changed

• perf(js/ts): read list fields directly in List.append by @shayanhabibi in #134
• chore: merge upstream fable-compiler/fable main by @shayanhabibi in #135

Full Changelog: v0.7.1...v0.7.2

Fickl 0.7.1

What's Changed

• fix(js/ts): preserve generic native async body types by @shayanhabibi in #129
• fix(js/ts): read disposal getters once with their receiver by @shayanhabibi in #130
• fix: validate generic and opaque native async payloads by @shayanhabibi in #132
• fix: preserve native member declaration dispatch by @shayanhabibi in #133

Full Changelog: v0.7.0...v0.7.1

Fickl 0.7.0

What's Changed

• fix(js/ts/python): map option counts to sequence length by @shayanhabibi in #111
• fix(js/ts): preserve None in optional integer getters by @shayanhabibi in #112
• fix(js/ts): preserve Some null in strict optional parameters by @shayanhabibi in #113
• fix(js/ts): retain undefined properties in declared object shapes by @shayanhabibi in #115
• fix(js/ts): preserve inline interface payload identity and state by @shayanhabibi in #116
• fix(all): normalize Pyright report paths relative to the workspace by @shayanhabibi in #117
• feat(js/ts): support ordinary callbacks with typed receivers by @shayanhabibi in #118
• feat(js/ts): bridge native synchronous and asynchronous disposal by @shayanhabibi in #119
• feat(js/ts): emit native async computations and exports by @shayanhabibi in #120
• feat(js/ts): emit typed native generator functions by @shayanhabibi in #121
• feat(js/ts): emit native async generators and iteration by @shayanhabibi in #122
• feat(js/ts): support explicit symbol keys across object shapes by @shayanhabibi in #123
• feat(js/ts): emit native class and member decorators by @shayanhabibi in #124

Full Changelog: v0.6.10...v0.7.0

Fickl 0.6.10

What's Changed

• fix(js): explicit classes over primary-constructor classes keep the base by @shayanhabibi in #97

Full Changelog: v0.6.9...v0.6.10