Bump Jint from 4.2.1 to 4.9.0 by dependabot[bot] · Pull Request #15 · lemonlion/InMemoryEmulator.MongoDB

dependabot · 2026-05-11T00:42:21Z

Updated Jint from 4.2.1 to 4.9.0.

Release notes

Sourced from Jint's releases.

4.9.0

Highlights

Jint 4.9.0 is a large release focused on performance, CLR interop ergonomics, and ECMAScript spec coverage.

New language features

Import Defer and Source Phase Imports — import defer * as ns from "mod" / import.defer() and import source x from "mod" / import.source() (TC39 proposals; 346 + 428 test262 tests pass) (#2396)
Import Text — import txt from "./file.txt" with { type: "text" } (TC39 Stage 3; complements the existing json / bytes paths) (#2403)

Performance

The interpreter and built-ins got broad attention this release — see the v4.8.0 → v4.9.0 comparison table below for measured deltas.

Custom regex engine interpreter optimized (#2388)
URI decode / unescape: faster and lower-allocation (#2389)
Array.prototype.sort / indexOf / includes / concat and sparse-array conversion optimized (#2408)
Lazy backing for new Array(N) plus Array.Copy fast paths for shift / unshift / splice (#2451)
Shape-versioned inline cache for member-expression reads (#2412)
FunctionEnvironment pooled per JintFunctionDefinition.State (#2413)
Identifier resolution: cached binding location in the slot fast path, walks skipped through empty function environments, inline small block-env slot resets (#2416, #2419, #2420)
Recursion pool + zero-alloc JsString primitive reads (#2450)
Avoid double-evaluating assignment bases in member access (#2402)

CLR interop

New opt-in Options.Interop.PreferJsPrototypeMethods() makes JS prototype methods win over CLR methods on wrapped objects (list.reverse() / list.sort() now do the JS thing on IList<T>) (#2440)
JS function call signatures preserved when functions are stored in Dictionary<string, object> (#2392)
Non-string CLR dictionary keys are now supported (#2449)
ThrowOnUnresolvedMember no longer throws on missing dictionary keys (#2446)
Fixed MissingMemberException on implicit string coercion of CLR objects (#2439)
CLR exceptions raised from JS now carry the originating JS source location and call stack — read via JintException.TryGetJavaScriptLocation / TryGetJavaScriptCallStack, or via JavaScriptException.Location when using CatchClrExceptions() (#2459)

Correctness & spec coverage

Async for-of destructuring resume bugs fixed (#2453, #2456)
Module system correctness improvements (#2395)
Function.prototype.toString() returns the original source text for non-native functions (#2394)
Custom-engine regex literals now honor the prepare-time RegexTimeout (#2457)
Regex parsing cleanup and improved fallback-to-custom-engine detection (#2393, #2398)
Many test262 exclusions dropped: Unicode SpecialCasing, calendar arithmetic, PlainMonthDay, NumberFormat precision, Hebrew leap-month, era/year consistency, locale numbering, plus a precision-aware NumberFormat path and a new ICalendarProvider extension point (#2390, #2407, #2409, #2411, #2414, #2423)
Acornima parser upgraded to 1.6.1 (#2415)

Performance: Jint 4.8.0 → 4.9.0

Same machine, same scripts, default BenchmarkDotNet settings on the v4.8.0 and v4.9.0 tags. Lower is better. Negative deltas are improvements.

Hardware: AMD Ryzen 9 5950X · Windows 11 · .NET 10.0.7 · BenchmarkDotNet 0.15.8.

Cold path — `Engine.Execute(string)` (parses on every call)

... (truncated)

4.8.0 What's Changed

Memory and peformance optimizations in interop. by @StringEpsilon in Memory and peformance optimizations in interop. sebastienros/jint#2382
Fix JS array → C# generic collection conversion in CLR interop by @Copilot in Fix JS array → C# generic collection conversion in CLR interop sebastienros/jint#2384
Skip GetParameters call if target method is not generic. by @StringEpsilon in Skip GetParameters call if target method is not generic. sebastienros/jint#2387
Use pool of ObjectTraverseStacks in ToObject(). by @StringEpsilon in Use pool of ObjectTraverseStacks in ToObject(). sebastienros/jint#2386
Add custom JavaScript regex engine (QuickJS libregexp port) by @lahma in Add custom JavaScript regex engine (QuickJS libregexp port) sebastienros/jint#2380

New Contributors

@StringEpsilon made their first contribution in Memory and peformance optimizations in interop. sebastienros/jint#2382

Full Changelog: sebastienros/jint@v4.7.1...v4.8.0

4.7.1 What's Changed

Bump the all-dependencies group with 3 updates by @dependabot[bot] in Bump the all-dependencies group with 3 updates sebastienros/jint#2372
Add ExceptionThrown event to DebugHandler by @lahma in Add ExceptionThrown event to DebugHandler sebastienros/jint#2375
Update Acornima to 1.3.2 by @lahma in Update Acornima to 1.3.2 sebastienros/jint#2374
Suppress skipped test noise in CI logs by @lahma in Suppress skipped test noise in CI logs sebastienros/jint#2377
Default source to "" in PrepareScript/PrepareModule by @lahma in Default source to "<anonymous>" in PrepareScript/PrepareModule sebastienros/jint#2379

Full Changelog: sebastienros/jint@v4.7.0...v4.7.1

4.7.0 What's Changed

Bump the all-dependencies group with 3 updates by @dependabot[bot] in Bump the all-dependencies group with 3 updates sebastienros/jint#2351
Fix for-await-of inside async generators permanently suspending by @Copilot in Fix for-await-of inside async generators permanently suspending sebastienros/jint#2353
Fix DST offset applied incorrectly near daylight saving transitions by @lahma in Fix DST offset applied incorrectly near daylight saving transitions sebastienros/jint#2357
Fix HTML comments in dynamic Function() and for-in initializer evaluation by @lahma in Fix HTML comments in dynamic Function() and for-in initializer evaluation sebastienros/jint#2358
Always enable modules in Jint.Repl for dynamic import by @ivankra in Always enable modules in Jint.Repl for dynamic import sebastienros/jint#2356
Fix async test reporting and resolve async test262 failures by @lahma in Fix async test reporting and resolve async test262 failures sebastienros/jint#2359
Fix var/lexical name hoisting for destructuring patterns by @lahma in Fix var/lexical name hoisting for destructuring patterns sebastienros/jint#2360
Validate negative test error types in test262 harness by @lahma in Validate negative test error types in test262 harness sebastienros/jint#2361
Fix async test harness priority, await in computed properties, and forbidden extensions by @lahma in Fix async test harness priority, await in computed properties, and forbidden extensions sebastienros/jint#2363
Implement AgentCanSuspend check for Atomics.wait by @lahma in Implement AgentCanSuspend check for Atomics.wait sebastienros/jint#2364
Fix compat-table failures: Array.at, AnnexB if-decl, Proxy observable gets by @lahma in Fix compat-table failures: Array.at, AnnexB if-decl, Proxy observable gets sebastienros/jint#2365
Implement AsyncIterator Helpers by @lahma in Implement AsyncIterator Helpers sebastienros/jint#2366
Align JavaScript runtime error messages with V8/Node.js by @lahma in Align JavaScript runtime error messages with V8/Node.js sebastienros/jint#2367
Implement TC39 Stage 3 decorators and auto-accessors (preliminary) by @lahma in Implement TC39 Stage 3 decorators and auto-accessors (preliminary) sebastienros/jint#2368
Fix wasteful allocations and minor perf improvements by @lahma in Fix wasteful allocations and minor perf improvements sebastienros/jint#2369
Add public IsCallable() and IsConstructor() extension methods by @lahma in Add public IsCallable() and IsConstructor() extension methods sebastienros/jint#2371

Full Changelog: sebastienros/jint@v4.6.4...v4.7.0

4.6.4 What's Changed

Bump the all-dependencies group with 7 updates by @dependabot[bot] in Bump the all-dependencies group with 7 updates sebastienros/jint#2327
Fix Date.toString() showing StandardName instead of DaylightName during DST by @Copilot in Fix Date.toString() showing StandardName instead of DaylightName during DST sebastienros/jint#2329
Make a PreparedScriptBenchmark class closer to the original by @Taritsyn in Make a PreparedScriptBenchmark class closer to the original sebastienros/jint#2325
Fix toLocaleString timeZoneName returning full name instead of abbreviation by @Copilot in Fix toLocaleString timeZoneName returning full name instead of abbreviation sebastienros/jint#2330
Update Regex terminology in README by @codeman4033 in Update Regex terminology in README sebastienros/jint#2333
Fix typo in README for RegExp to Regex by @codeman4033 in Fix typo in README for RegExp to Regex sebastienros/jint#2334
Fix mixed-type addition chain incorrectly treated as pure string concatenation by @Copilot in Fix mixed-type addition chain incorrectly treated as pure string concatenation sebastienros/jint#2337
fix: prevent StackOverflow, IndexOutOfRange, and InvalidCast crashes on malformed JavaScript by @Copilot in fix: prevent StackOverflow, IndexOutOfRange, and InvalidCast crashes on malformed JavaScript sebastienros/jint#2340
Support running test262 using Jint.Repl by @ivankra in Support running test262 using Jint.Repl sebastienros/jint#2326
Update test262 suite to latest commit and fix 3 new failures by @Copilot in Update test262 suite to latest commit and fix 3 new failures sebastienros/jint#2341
Implement non-ISO calendar support for Temporal (Chinese, Dangi, Hebrew, Persian) by @lahma in Implement non-ISO calendar support for Temporal (Chinese, Dangi, Hebrew, Persian) sebastienros/jint#2342
Replace embedded resource text files with inline data for Intl CLDR data by @lahma in Replace embedded resource text files with inline data for Intl CLDR data sebastienros/jint#2343
Enable Intl.Era-monthcode and implement 7 new calendar systems (+2,498 test262 passes) by @lahma in Enable Intl.Era-monthcode and implement 7 new calendar systems (+2,498 test262 passes) sebastienros/jint#2344
Optimize interpreter hot paths for arithmetic, comparisons, and control flow by @lahma in Optimize interpreter hot paths for arithmetic, comparisons, and control flow sebastienros/jint#2345
Eliminate lazy initialization overhead from interpreter hot paths (~8% faster) by @lahma in Eliminate lazy initialization overhead from interpreter hot paths (~8% faster) sebastienros/jint#2346
Fix Temporal calendar handling and enable 2,782 more test262 passes by @lahma in Fix Temporal calendar handling and enable 2,782 more test262 passes sebastienros/jint#2347
Optimize Intl and Temporal hot paths with caching and algorithmic fixes by @lahma in Optimize Intl and Temporal hot paths with caching and algorithmic fixes sebastienros/jint#2348
Fix BigInt exponentiation bypassing execution constraints by @lahma in Fix BigInt exponentiation bypassing execution constraints sebastienros/jint#2350

New Contributors

@codeman4033 made their first contribution in Update Regex terminology in README sebastienros/jint#2333
@ivankra made their first contribution in Support running test262 using Jint.Repl sebastienros/jint#2326

Full Changelog: sebastienros/jint@v4.6.3...v4.6.4

4.6.3 What's Changed

Update Acornima to 1.3.0 and enable RegExp modifiers by @Copilot in Update Acornima to 1.3.0 and enable RegExp modifiers sebastienros/jint#2322
Bump Meziantou.Analyzer and 5 others by @dependabot[bot] in Bump Meziantou.Analyzer and 5 others sebastienros/jint#2323
Fix prepared script performance regression from shared identifier cache thrashing by @lahma in Fix prepared script performance regression from shared identifier cache thrashing sebastienros/jint#2324

Full Changelog: sebastienros/jint@v4.6.2...v4.6.3

4.6.2 What's Changed

Update benchmark results by @lahma in Update benchmark results sebastienros/jint#2000
Fix cached Promise result being reused across for…of loop iterations with await by @Copilot in Fix cached Promise result being reused across for…of loop iterations with await sebastienros/jint#2304
docs: fix 2 typos in README.md by @Withered-Flower-0422 in docs: fix 2 typos in README.md sebastienros/jint#2307
Implement ECMAScript Annex B web compatibility features by @lahma in Implement ECMAScript Annex B web compatibility features sebastienros/jint#2308
Fix destructuring spec compliance for IteratorClose, done tracking, and binding order by @lahma in Fix destructuring spec compliance for IteratorClose, done tracking, and binding order sebastienros/jint#2309
Fix some test262 failures by @lahma in Fix some test262 failures sebastienros/jint#2310
Fix empty Dictionary when passing JS object to CLR method accepting Dictionary<string, T> by @Copilot in Fix empty Dictionary when passing JS object to CLR method accepting Dictionary<string, T> sebastienros/jint#2312
Fix test262 failures after suite update by @lahma in Fix test262 failures after suite update sebastienros/jint#2313
Implement Promise.allKeyed() and Promise.allSettledKeyed() by @lahma in Implement Promise.allKeyed() and Promise.allSettledKeyed() sebastienros/jint#2314
Implement import-bytes module support by @lahma in Implement import-bytes module support sebastienros/jint#2315
Fix module-graphs-does-not-hang and import abrupt return test262 failures by @lahma in Fix module-graphs-does-not-hang and import abrupt return test262 failures sebastienros/jint#2316
Fix eval-code direct eval var arguments conflict detection by @lahma in Fix eval-code direct eval var arguments conflict detection sebastienros/jint#2317
Fix locale-specific date separators in DateTimeFormat by @lahma in Fix locale-specific date separators in DateTimeFormat sebastienros/jint#2319
Fix duplicate named capturing groups and clean up regex test262 exclusions by @lahma in Fix duplicate named capturing groups and clean up regex test262 exclusions sebastienros/jint#2320

New Contributors

@Withered-Flower-0422 made their first contribution in docs: fix 2 typos in README.md sebastienros/jint#2307

Full Changelog: sebastienros/jint@v4.6.1...v4.6.2

4.6.1 What's Changed

Fix CLR toJSON method invocation in JSON.stringify by @Copilot in Fix CLR toJSON method invocation in JSON.stringify sebastienros/jint#2292
Add UnwrapIfPromiseAsync extension method for non-blocking promise resolution by @Copilot in Add UnwrapIfPromiseAsync extension method for non-blocking promise resolution sebastienros/jint#2298
Bump the all-dependencies group with 4 updates by @dependabot[bot] in Bump the all-dependencies group with 4 updates sebastienros/jint#2294
Fix Object.freeze() support for CLR dictionary-backed ObjectWrapper by @Copilot in Fix Object.freeze() support for CLR dictionary-backed ObjectWrapper sebastienros/jint#2296
Fix InvalidCastException when a property getter is a bound function by @Copilot in Fix InvalidCastException when a property getter is a bound function sebastienros/jint#2301
Optimize Date operations and object resolution by @Copilot in Optimize Date operations and object resolution sebastienros/jint#2288

Full Changelog: sebastienros/jint@v4.6.0...v4.6.1

4.6.0

This release brings Temporal and internationalization APIs available. There still might be some rough edges and specific non-English cultures might be missing specific formatting. There's a breaking change for custom IReferenceResolver in #2266 , undefined and null semantics changed to make engine work as required by the official specification.

Temporal and internationalization APIs are augmented with plugins to provide data from NodaTime and ICU4N, see https://github.com/sebastienros/jint/tree/main/Jint.Tests.Test262 for example implementations.

What's Changed

Preserve lexical block environment across async loop resumes by @Copilot in Preserve lexical block environment across async loop resumes sebastienros/jint#2250
Add core Intl infrastructure by @lahma in feat(intl): Add core Intl infrastructure sebastienros/jint#2253
Add CLDR data files and DefaultCldrProvider by @lahma in Add CLDR data files and DefaultCldrProvider sebastienros/jint#2254
Add Intl global object and Intl.Locale by @lahma in Add Intl global object and Intl.Locale sebastienros/jint#2255
Add Intl.Collator and update String.localeCompare by @lahma in Add Intl.Collator and update String.localeCompare sebastienros/jint#2256
Add Intl.PluralRules by @lahma in Add Intl.PluralRules sebastienros/jint#2257
Add Intl.NumberFormat and update toLocaleString by @lahma in Add Intl.NumberFormat and update toLocaleString sebastienros/jint#2258
Add Intl.DateTimeFormat and update toLocaleString by @lahma in Add Intl.DateTimeFormat and update toLocaleString sebastienros/jint#2259
Complete Intl API with remaining formatters and tests by @lahma in Complete Intl API with remaining formatters and tests sebastienros/jint#2260
Temporal API infrastructure by @lahma in Temporal API infrastructure sebastienros/jint#2262
Implement Temporal.Duration by @lahma in Implement Temporal.Duration sebastienros/jint#2263
Regenerate test suite on settings file change by @lahma in Regenerate test suite on settings file change sebastienros/jint#2265
Enable tests and fix issues by @lahma in Enable tests and fix issues sebastienros/jint#2266
Improve Internalization API performance by @lahma in Improve Internalization API performance sebastienros/jint#2267
Update test262 suite and fix issues by @lahma in Update test262 suite and fix issues sebastienros/jint#2271
Implement Temporal by @lahma in Implement Temporal sebastienros/jint#2264
Improve Decode performance by @lahma in Improve Decode performance sebastienros/jint#2272
Fix some internalization API issues by @lahma in Fix some internalization API issues sebastienros/jint#2273
Add async .NET API for JavaScript async/await without blocking threads by @desty2k in Add async .NET API for JavaScript async/await without blocking threads sebastienros/jint#2274
Improve string concatenation performance by @lahma in Improve string concatenation performance sebastienros/jint#2275
Bump the all-dependencies group with 6 updates by @dependabot[bot] in Bump the all-dependencies group with 6 updates sebastienros/jint#2276
Add decorator hook for CLR exception error objects by @Copilot in Add decorator hook for CLR exception error objects sebastienros/jint#2280
Enable Temporal related internalization API tests and fix issues by @lahma in Enable Temporal related internalization API tests and fix issues sebastienros/jint#2277
Add constraint checks to array and typed array methods that bypass memory limits by @Copilot in Add constraint checks to array and typed array methods that bypass memory limits sebastienros/jint#2282
Add SourceOffset to ScriptParsingOptions for embedded JS snippet error mapping by @Copilot in Add SourceOffset to ScriptParsingOptions for embedded JS snippet error mapping sebastienros/jint#2283
Add Copilot instructions by @lahma in Add Copilot instructions sebastienros/jint#2286
Fix IReadOnlyDictionary being treated as array-like instead of dictionary by @lahma in Fix IReadOnlyDictionary being treated as array-like instead of dictionary sebastienros/jint#2287
Improve function call performance by @lahma in Improve function call performance sebastienros/jint#2281

New Contributors

@Copilot made their first contribution in Preserve lexical block environment across async loop resumes sebastienros/jint#2250
@desty2k made their first contribution in Add async .NET API for JavaScript async/await without blocking threads sebastienros/jint#2274

Full Changelog: sebastienros/jint@v4.5.0...v4.6.0

4.5.0

This is a significant milestone as this release graduates generators functionality from experimental and contains proper suspension and resume logic for both generators and async/await logic. There are a lot of changes to internals so make sure you test thoroughly.

Task interop is still marked as experimental and requires enabling explicitly in Engine options, but it also has had improvements to make it work better in Engine's event loop.

For background work to complete without engine interaction (evaluation) you need to manually process the tasks (for example if you have a timeout pending after script has been run).

engine.Execute(script);
for (var i = 0; i < 100; ++i)
{
    engine.Advanced.ProcessTasks();
    await Task.Delay(100);
}

What's Changed

Allows the conversion of primses to tasks when pasing an async function as argument by @REscobar in Allows the conversion of primses to tasks when pasing an async function as argument sebastienros/jint#2197
Bump the all-dependencies group with 3 updates by @dependabot[bot] in Bump the all-dependencies group with 3 updates sebastienros/jint#2198
Fix missing control characters in Json Parse Key by @H4ad in Fix missing control characters in Json Parse Key sebastienros/jint#2202
Use NET 10 SDK to build and test by @lahma in Use NET 10 SDK to build and test sebastienros/jint#2185
Upgrade packages by @lahma in Upgrade packages sebastienros/jint#2212
Convert solution to slnx format by @lahma in Convert solution to slnx format sebastienros/jint#2213
Defer iterator next method check until actually iterating by @lahma in Defer iterator next method check until actually iterating sebastienros/jint#2214
Add ArrayExpression and ObjectExpression to computed property key types by @lahma in Add ArrayExpression and ObjectExpression to computed property key types sebastienros/jint#2215
Fix parameter TDZ and eval-var-scope handling by @lahma in Fix parameter TDZ and eval-var-scope handling sebastienros/jint#2216
ES6 Generators by @lahma in ES6 Generators sebastienros/jint#824
Bump the all-dependencies group with 1 update by @dependabot[bot] in Bump the all-dependencies group with 1 update sebastienros/jint#2217
Refactor generator control flow from exceptions to flags by @lahma in Refactor generator control flow from exceptions to flags sebastienros/jint#2218
Implement Iterator Helpers by @lahma in Implement Iterator Helpers sebastienros/jint#2032
Implement Iterator Sequencing by @lahma in Implement Iterator Sequencing sebastienros/jint#2031
Update test262 test suite and fix issues by @lahma in Update test262 test suite and fix issues sebastienros/jint#2219
Implement RegExp.escape() by @lahma in Implement RegExp.escape() sebastienros/jint#2220
Implement Immutable ArrayBuffers by @lahma in Implement Immutable ArrayBuffers sebastienros/jint#2222
Implement Joint Iteration by @lahma in Implement Joint Iteration sebastienros/jint#2221
Improve REPL for AI usage by @lahma in Improve REPL for AI usage sebastienros/jint#2224
Implement JSON.parse source text access by @lahma in Implement JSON.parse source text access sebastienros/jint#2223
Rename IsGeneratorSuspended to IsSuspended by @lahma in Rename IsGeneratorSuspended to IsSuspended sebastienros/jint#2226
ECMAScript-compliant async/await with proper suspension by @lahma in ECMAScript-compliant async/await with proper suspension sebastienros/jint#2225
Filter TypeReference constructors using TypeResolver.MemberFilter by @lahma in Filter TypeReference constructors using TypeResolver.MemberFilter sebastienros/jint#2227
Implement async-iteration by @lahma in Implement async-iteration sebastienros/jint#2228
Implement Array.fromAsync by @lahma in Implement Array.fromAsync sebastienros/jint#2229
Add agent support to test262 testing by @lahma in Add agent support to test262 testing sebastienros/jint#2231
Bump the all-dependencies group with 2 updates by @dependabot[bot] in Bump the all-dependencies group with 2 updates sebastienros/jint#2232
Implement Atomics by @lahma in Implement Atomics sebastienros/jint#2230
ValueTask and IAsyncEnumerable interop support by @lahma in ValueTask<TResult> and IAsyncEnumerable<T> interop support sebastienros/jint#2233
Disable fail-fast in GitHub Actions workflow by @lahma in Disable fail-fast in GitHub Actions workflow sebastienros/jint#2235
Add jsValue.UnwrapIfPromise(CancellationToken cancellationToken) by @lahma in Add jsValue.UnwrapIfPromise(CancellationToken cancellationToken) sebastienros/jint#2234
Fix Test262Test setTimeout concurrency issue by @lahma in Fix Test262Test setTimeout concurrency issue sebastienros/jint#2236
Type resolution should use runtime type when declared type has indexer by @lahma in Type resolution should use runtime type when declared type has indexer sebastienros/jint#2237
JSE.GetBaseException() shouldn't return JavaScriptErrorWrapperException by @lahma in JSE.GetBaseException() shouldn't return JavaScriptErrorWrapperException sebastienros/jint#2238
... (truncated)

4.4.2 What's Changed

Upgrade to xUnit v3 by @lahma in Upgrade to xUnit v3 sebastienros/jint#2154
Fix BigInt modulo assignment by @lahma in Fix BigInt modulo assignment sebastienros/jint#2178
Fix Object.is when providing BigInt values by @tomatosalat0 in Fix Object.is when providing BigInt values sebastienros/jint#2183
Prevent accidental leakage of arguments between separate calls by @tomatosalat0 in Prevent accidental leakage of arguments between separate calls sebastienros/jint#2193
Rewrite of flaky test by @tomatosalat0 in Rewrite of flaky test sebastienros/jint#2195
Allow garbage collector to collect unused memory by @tomatosalat0 in Allow garbage collector to collect unused memory sebastienros/jint#2196

Full Changelog: sebastienros/jint@v4.4.1...v4.4.2

4.4.1 What's Changed

Add Options.Constraints.PromiseTimeout To Control timeout for DisposeHint.Async and JintAwaitExpression by @rocklau in Add Options.Constraints.PromiseTimeout To Control timeout for DisposeHint.Async and JintAwaitExpression sebastienros/jint#2150
Fix iterating a clr list proxy and length property by @martinbu in Fix iterating a clr list proxy and length property sebastienros/jint#2151
Fix MethodAccessor property flags by @lahma in Fix MethodAccessor property flags sebastienros/jint#2153

New Contributors

@rocklau made their first contribution in Add Options.Constraints.PromiseTimeout To Control timeout for DisposeHint.Async and JintAwaitExpression sebastienros/jint#2150

Full Changelog: sebastienros/jint@v4.4.0...v4.4.1

4.4.0

This release brings both using and await using statements available to both native JS usage and NET interop. Interop will automatically wrap IDisposable and IAsyncDisposable to have handlers that will be called after using scope ends. Read more about the proposal.

What's Changed

Fix default parameter handling under interop by @lahma in Fix default parameter handling under interop sebastienros/jint#2134
Support writing length to IList under interop by @lahma in Support writing length to IList under interop sebastienros/jint#2135
Passing space arg to Options.Interop.SerializeToJson by @Zaitonn in Passing space arg to Options.Interop.SerializeToJson sebastienros/jint#2142
Add explicit resource management supporting types by @lahma in Add explicit resource management supporting types sebastienros/jint#2143
Upgrade to Acornima v1.2.0 by @adams85 in Upgrade to Acornima v1.2.0 sebastienros/jint#2145
Add support for using and await using by @lahma in Add support for using and await using sebastienros/jint#2139

New Contributors

@Zaitonn made their first contribution in Passing space arg to Options.Interop.SerializeToJson sebastienros/jint#2142

Full Changelog: sebastienros/jint@v4.3.0...v4.4.0

4.3.0 What's Changed

Fix ObjectAccessBenchmark test by @mac-michael in Fix ObjectAccessBenchmark test sebastienros/jint#2100
Add default 10 second timeout for promise unwrapping by @lahma in Add default 10 second timeout for promise unwrapping sebastienros/jint#2103
Fix erroneous caching by providing each function instance with it own interop variant by @warappa in #2099: Fix erroneous caching by providing each function instance with it own interop variant sebastienros/jint#2105
Fix calling pop on generic list of value types by @Genteure in Fix calling pop on generic list of value types sebastienros/jint#2112
Fix NRE in BuildTargetBinderDelegate by @warappa in #2114: Fix NRE in BuildTargetBinderDelegate sebastienros/jint#2116
Improve Half interop handling by @lahma in Improve Half interop handling sebastienros/jint#2121
Make eval syntax checks not descend into function declarations by @rg1 in Bugfix/2106 make eval syntax checks not descend into function declarations sebastienros/jint#2123
Update test262 harness and fix issues by @lahma in Update test262 harness and fix issues sebastienros/jint#2126
Implement Upsert by @lahma in Implement Upsert sebastienros/jint#2127
Implement V8-styled stacktraces by @Guichaguri in Implement V8-styled stacktraces sebastienros/jint#2129
Improve interop member resolution when enum indexer present by @lahma in Improve interop member resolution when enum indexer present sebastienros/jint#2131

New Contributors

@mac-michael made their first contribution in Fix ObjectAccessBenchmark test sebastienros/jint#2100
@warappa made their first contribution in #2099: Fix erroneous caching by providing each function instance with it own interop variant sebastienros/jint#2105
@rg1 made their first contribution in Bugfix/2106 make eval syntax checks not descend into function declarations sebastienros/jint#2123
@Guichaguri made their first contribution in Implement V8-styled stacktraces sebastienros/jint#2129

Full Changelog: sebastienros/jint@v4.2.2...v4.3.0

4.2.2

This release improves interop performance when you target CLR methods with lambda functions, like List<string>.Find(x => x === "test").

What's Changed

Update bug_report.md by @lahma in Update bug_report.md sebastienros/jint#2070
Remove unused usings by @lahma in Remove unused usings sebastienros/jint#2072
Use collection expressions by @lahma in Use collection expressions sebastienros/jint#2073
Enforce code style on build and fix issues by @lahma in Enforce code style on build and fix issues sebastienros/jint#2074
Use matrix to run PR builds, add ARM runner by @lahma in Use matrix to run PR builds, add ARM runner sebastienros/jint#2075
Create config.yml for issues templates by @lahma in Create config.yml for issues templates sebastienros/jint#2077
Bump the all-dependencies group with 3 updates by @dependabot in Bump the all-dependencies group with 3 updates sebastienros/jint#2079
Bump the all-dependencies group with 2 updates by @dependabot in Bump the all-dependencies group with 2 updates sebastienros/jint#2080
Improve interop performance against dictionary by @lahma in Improve interop performance against dictionary sebastienros/jint#2088

Full Changelog: sebastienros/jint@v4.2.1...v4.2.2

Commits viewable in compare view.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

@dependabot rebase will rebase this PR
@dependabot recreate will recreate this PR, overwriting any edits that have been made to it
@dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
@dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
@dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
@dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

--- updated-dependencies: - dependency-name: Jint dependency-version: 4.9.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>

dependabot · 2026-05-11T00:42:22Z

Labels

The following labels could not be found: dependencies, nuget. Please create them before Dependabot can add them to a pull request.

Please fix the above issues or remove invalid values from dependabot.yml.

dependabot · 2026-05-18T00:48:59Z

Superseded by #17.

Bump Jint from 4.2.1 to 4.9.0

4764d85

--- updated-dependencies: - dependency-name: Jint dependency-version: 4.9.0 dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>

dependabot Bot mentioned this pull request May 11, 2026

Bump Jint from 4.2.1 to 4.8.0 #6

Closed

dependabot Bot closed this May 18, 2026

dependabot Bot deleted the dependabot/nuget/src/MongoDB.InMemoryEmulator.JsTriggers/Jint-4.9.0 branch May 18, 2026 00:49

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Bump Jint from 4.2.1 to 4.9.0#15

Bump Jint from 4.2.1 to 4.9.0#15
dependabot[bot] wants to merge 1 commit into
mainfrom
dependabot/nuget/src/MongoDB.InMemoryEmulator.JsTriggers/Jint-4.9.0

dependabot Bot commented on behalf of github May 11, 2026 •

edited

Loading

Uh oh!

dependabot Bot commented on behalf of github May 11, 2026

Uh oh!

dependabot Bot commented on behalf of github May 18, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

0 participants

Conversation

dependabot Bot commented on behalf of github May 11, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

4.9.0

Highlights

New language features

Performance

CLR interop

Correctness & spec coverage

Performance: Jint 4.8.0 → 4.9.0

Cold path — Engine.Execute(string) (parses on every call)

4.8.0

What's Changed

New Contributors

4.7.1

What's Changed

4.7.0

What's Changed

4.6.4

What's Changed

New Contributors

4.6.3

What's Changed

4.6.2

What's Changed

New Contributors

4.6.1

What's Changed

4.6.0

What's Changed

New Contributors

4.5.0

What's Changed

4.4.2

What's Changed

4.4.1

What's Changed

New Contributors

4.4.0

What's Changed

New Contributors

4.3.0

What's Changed

New Contributors

4.2.2

What's Changed

Uh oh!

dependabot Bot commented on behalf of github May 11, 2026

Labels

Uh oh!

dependabot Bot commented on behalf of github May 18, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

0 participants

dependabot Bot commented on behalf of github May 11, 2026 •

edited

Loading

Cold path — `Engine.Execute(string)` (parses on every call)