10 lines
649 B
Markdown
10 lines
649 B
Markdown
---
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"effect": patch
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---
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Treat empty strings as missing values in built-in `ConfigProvider`s by default.
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`ConfigProvider.fromEnv`, `ConfigProvider.fromDotEnvContents`, `ConfigProvider.fromDotEnv`, `ConfigProvider.fromUnknown`, and `ConfigProvider.fromDir` now treat literal empty strings as absent values when loaded as values, allowing `Config.withDefault` and `Config.option` to recover. Container discovery still reflects the source structure. Pass `preserveEmptyStrings: true` to restore the previous behavior.
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`ConfigProvider.fromDotEnv({ expandVariables: true })` now expands variables consistently with `ConfigProvider.fromDotEnvContents`.
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