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zlib: fix zstd reset #65867

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zlib: fix zstd reset
jasnell Sep 6, 2026
0db7656
doc: fill in missing zstd docs
jasnell Sep 6, 2026
aa7a2fe
zlib: reject invalid zstd dictionaries
jasnell Sep 6, 2026
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doc: fill in missing zstd docs 
Signed-off-by: James M Snell <jasnell@gmail.com>
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@jasnell
jasnell committed Sep 11, 2026
commit 0db765649f87fb6285e11aece024a564ecd8a632
8 changes: 7 additions & 1 deletion doc/api/zlib.md
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Expand Up @@ -2158,7 +2158,8 @@ added: v0.5.8
-->

* `kind` **Default:** `zlib.constants.Z_FULL_FLUSH` for zlib-based streams,
`zlib.constants.BROTLI_OPERATION_FLUSH` for Brotli-based streams.
`zlib.constants.BROTLI_OPERATION_FLUSH` for Brotli-based streams, and
`zlib.constants.ZSTD_e_flush` for Zstd-based streams.
* `callback` {Function}

Flush pending data. Don't call this frivolously, premature flushes negatively
Expand Down Expand Up @@ -2229,6 +2230,9 @@ Each Zstd-based class takes an `options` object. All options are optional.
* `finishFlush` {integer} **Default:** `zlib.constants.ZSTD_e_end`
* `chunkSize` {integer} **Default:** `16 * 1024`
* `params` {Object} Key-value object containing indexed [Zstd parameters][].
* `pledgedSrcSize` {number} Expected total size of the uncompressed input. It
must be a non-negative safe integer and must match the input size when
compression finishes. Only applicable to Zstd compressors.
* `maxOutputLength` {integer} Limits output size when using
[convenience methods][]. **Default:** [`buffer.kMaxLength`][]
* `info` {boolean} If `true`, returns an object with `buffer` and `engine`. **Default:** `false`
Expand Down Expand Up @@ -3069,6 +3073,8 @@ Compress a chunk of data with [`ZstdCompress`][].

### `zlib.zstdDecompress(buffer[, options], callback)`

> Stability: 1 - Experimental

<!-- YAML
added:
- v23.8.0
Expand Down