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Revert compress middleware algorithms priority to v2 behavior

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Co-authored-by: Kevin Pollet <pollet.kevin@gmail.com>
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Romain 2025-03-28 11:30:05 +01:00 • committed by GitHub
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4
docs/content/middlewares/http/compress.md
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@ -264,10 +264,10 @@ http:
### `encodings`
_Optional, Default="zstd, br, gzip"_
_Optional, Default="gzip, br, zstd"_
`encodings` specifies the list of supported compression encodings.
At least one encoding value must be specified, and valid entries are `zstd` (Zstandard), `br` (Brotli), and `gzip` (Gzip).
At least one encoding value must be specified, and valid entries are `gzip` (Gzip), `br` (Brotli), and `zstd` (Zstandard).
The order of the list also sets the priority, the top entry has the highest priority.
```yaml tab="Docker & Swarm"

10
docs/content/migration/v3.md
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@ -187,3 +187,13 @@ and will be removed in the next major version.
In `v3.3.4`, the OpenTelemetry Request Duration metric (named `traefik_(entrypoint|router|service)_request_duration_seconds`) unit has been changed from milliseconds to seconds.
To be consistent with the naming and other metrics providers, the metric now reports the duration in seconds.
## v3.3.5
### Compress Middleware
In `v3.3.5`, the compress middleware `encodings` option default value is now `gzip, br, zstd`.
This change helps the algorithm selection to favor the `gzip` algorithm over the other algorithms.
It impacts requests that do not specify their preferred algorithm,
or has no order preference, in the `Accept-Encoding` header.