chore(deps): update i18next to 26.0.3 by renovate[bot] · Pull Request #23 · resend/react-email-react-i18next-example

renovate · 2026-03-28T14:05:45Z

This PR contains the following updates:

Package	Change	Age	Confidence
i18next (source)	`25.7.4` → `26.0.3`

Release Notes

i18next/i18next (i18next)

`v26.0.3`

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fix(types): addResourceBundle now accepts an optional 6th options parameter ({ silent?: boolean; skipCopy?: boolean }) matching the runtime API 2419

`v26.0.2`

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fix(types): t("key", {} as TOptions) no longer produces a type error — the context constraint now bypasses strict checking when context is unknown (e.g. from TOptions) 2418

`v26.0.1`

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fix: Formatter no longer crashes when alwaysFormat is true and no format specifier is present (format is undefined)
fix: Formatter now returns undefined/null values as-is instead of producing NaN when the value is missing

`v26.0.0`

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This is a major breaking release:

Breaking Changes

Remove deprecated initImmediate option — the backward-compatibility mapping from initImmediate to initAsync (introduced in v24) has been removed. Use initAsync instead.
Remove legacy interpolation.format function — the old monolithic format function (interpolation: { format: (value, format, lng) => ... }) is no longer supported. The built-in Formatter (or a custom Formatter module via .use()) is now always used. Migrate to the new formatting approach using i18next.services.formatter.add() or .addCached() for custom formatters.
Remove console support notice — the console support notice introduced in v25.8.0 has been removed, along with the showSupportNotice option and all related internal suppression logic (globalThis.__i18next_supportNoticeShown, I18NEXT_NO_SUPPORT_NOTICE env var). See our blog post for the full story.
Remove simplifyPluralSuffix option — this option was unused by the core PluralResolver (which relies entirely on Intl.PluralRules). It only had an effect in the old v1/v2/v3 compatibility layer. The v4 test compatibility layer now defaults to true internally.
Remove deprecated @babel/polyfill from devDependencies.

Improvements

Code modernization across all source files:
- Replace indexOf() > -1 / indexOf() < 0 with .includes() (~40+ occurrences)
- Replace indexOf() === 0 with .startsWith() where appropriate
- Replace var with const, '' + object with String(object), .substring() with .slice()
- Replace .apply(observer, [event, ...args]) with direct call observer(event, ...args)
- Remove unnecessary .call(this, ...) in BackendConnector retry logic
- Fix array-callback-return in LanguageUtils getBestMatchFromCodes
- Clean up all stale eslint-disable comments from source files
EventEmitter: add once() method for one-time event subscriptions
Memory leak fix: move module-level checkedLoadedFor cache to Translator instance, preventing cross-instance state leakage
TypeScript: fix BackendModule generic parameter naming inconsistency between CJS and ESM type definitions
TypeScript: add once() method to i18n and ResourceStore type interfaces
ESLint 9: migrate from ESLint 8 (airbnb-base) to ESLint 9 flat config with neostandard
Vitest 4: upgrade from vitest 3 to vitest 4, migrate workspace files to test.projects config

`v25.10.10`

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feat: suppress support notice automatically in production environments (NODE_ENV=production)

`v25.10.9`

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feat(types): export SelectorParam<Ns, KPrefix> helper type — a stable, readable alternative to Parameters<TFunction<Ns>>[0] for typing selector function props 2414

`v25.10.8`

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fix(types): reorder TFunctionSelector overloads so Parameters<TFunction> resolves to the general selector signature instead of the branded SelectorKey type 2412

`v25.10.7`

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feat(types): support typescript 6 to address i18next/react-i18next#1910

`v25.10.6`

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feat(types): support typescript 6 to address i18next/react-i18next#1910

`v25.10.5`

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feat(types): selector functions as keyPrefix in getFixedT now provide full type-safe key narrowing — the returned t function is scoped to the prefix subtree 2367

`v25.10.4`

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feat(types): exists() is now a type guard that narrows the key to SelectorKey, so a validated key can be passed directly to t() 2364

`v25.10.3`

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check also for I18NEXT_NO_SUPPORT_NOTICE env variable

`v25.10.2`

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feat(types): keyFromSelector is now type-safe — the selector callback is constrained against your resource definitions, catching invalid keys at compile time. Supports optional ns and keyPrefix options for non-default namespace/prefix contexts 2364

`v25.10.1`

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fix(types): FilterKeys now correctly excludes base keys that have context variants when the provided context doesn't match any of them (e.g. key some with variant some_me is no longer accessible with context="one")

`v25.10.0`

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feat(types): keyFromSelector now returns a branded SelectorKey type that t() accepts directly, enabling pre-computed and reusable translation keys 2364
feat: support selector syntax for keyPrefix in getFixedT and per-call options 2367
feat(types): interpolation values are now automatically typed based on built-in format specifiers — {{val, number}} requires number, {{val, datetime}} requires Date, {{name}} requires string, etc. Custom formatters can be typed via interpolationFormatTypeMap in CustomTypeOptions 2378
fix(types): FilterKeys in selector mode now preserves non-context, non-plural leaf keys when context is provided, fixing incorrect type narrowing when combining returnObjects: true with context 2398

`v25.9.0`

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feat(types): selector API now enforces { count: number } when a key resolves to plural forms 2373
fix(types): string unions with invalid members are now correctly detected as type errors when used as context option 2172

`v25.8.20`

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- fix: getFixedT() selector now resolves namespaces against the effective ns rather than the global init options #2406

`v25.8.19`

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fix: selector API namespace resolution regression for single-string ns and primary namespace in array #2405. Reverts the broad namespace-prefix rewrite from v25.8.15 and replaces it with a targeted fix that only rewrites paths starting with a secondary namespace in a multi-namespace array, matching the type-level contract of GetSource

`v25.8.18`

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improve selector api to accept array of selector functions, analogous to array of keys 2404

`v25.8.17`

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update deps

`v25.8.16`

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fix(types): on() method now correctly returns this instead of void, matching the runtime behavior and enabling proper method chaining in TypeScript