Bump com.squareup.okio:okio from 3.9.0 to 3.18.2

[dependabot]

Bumps com.squareup.okio:okio from 3.9.0 to 3.18.2.

Changelog

Sourced from com.squareup.okio:okio's changelog.

Version 3.18.2

2026-09-04

• Fix: Don't change behavior of base64-encoding. We introduced a bug in Okio 3.18.1 that caused base64 strings to be encoded without padding, even though the previous and expected behavior is to encode such strings with padding (= characters). The bug impacts callers who compiled against Okio releases < 3.18.0, and executed on Okio releases >= 3.18.

Version 3.18.1

2026-07-28

• Fix: Restore binary-compatibility with Okio 3.17.x for Kotlin/Native users. When we introduced the new base64() function, we inadvertently changed the binary signature! Ugh! This is now fixed and we've automated binary-compatibility checking for Kotlin/Native going forward.

Version 3.18.0

2026-07-21

• Fix: Use wide character APIs to better support of non-UTF-8 filesystems on Windows.
• Fix: Don't crash in AssetFileSystem.exists() when the underlying storage throws a FileNotFoundException.
• Fix: Load WASI paths relative to their preopen. The platform behavior recently changed in NodeJS, causing our WasiFileSystem to be unable to access files!
• New: Optionally ignore whitespace when decoding hexadecimal.
• New: Optionally omit padding when encoding Base64.
• New: BufferedSource.readUInt(), BufferedSink.writeUInt(), and similar functions for UByte, UShort and ULong. Also add support for unsigned and little-endian.
• New: BufferedSink.utf8Appendable(). Use this to adapt an Okio sink to an Appendable.
• New: Source.limit() returns a wrapped source with a strict limit on how many bytes are returned.
• New: ByteString.equals(other, constantTime) for subtle defense against timing attacks.

Version 3.17.0

2026-03-11

• New: Adjust down the Kotlin stdlib dependency to [Kotlin 2.1.21][kotlin_2_1_21]. Okio is built with an up-to-date Kotlin compiler (2.2.21), but depends on an older kotlin-stdlib. We're doing this so you can update Okio and Kotlin independently.

• Fix: Return the correct timestamp in FileMetadata.createdAtMillis on Kotlin/Native on UNIX platforms. We were incorrectly using the POSIX ctime (change time) instead of the birthtime. With this fix Okio now prefers statx() over stat() on native platforms. This API first appeared in Linux in 4.11 (2017) and Android in API 30 (2020).

... (truncated)

Commits

• 9403a09 Prepare for release 3.18.2.
• 5a1c153 Fix an unintended behavior change with base64 padding (#1869)
• 9f564fd Prepare for release 3.18.1.
• 531cf07 Hide some accidentally public symbols (#1839)
• e7ef43d Update GitHub Actions for new secrets and branch (#1840)
• a6730de Start enforcing binary compatibility for Kotlin/Native (#1838)
• e75a7e9 Update dependency com.android.tools.build:gradle to v9.3.1 (#1836)
• 9d21d5c Fix interchanged docs links for 1.x and 2.x API (#1835)
• bff1dff Track new docs locations from Dokka v2 (#1833)
• 3b16d9b Grant write permission to the publish-website action (#1832)
• Additional commits viewable in compare view

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