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21 lines
1.3 KiB
Text
21 lines
1.3 KiB
Text
== Notable changes
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Notable changes may include internal behavior changes that prevent common misconfigurations, bugs that are fixed, or changes to simplify running {project_name}.
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It also lists significant changes to internal APIs.
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=== Usage of virtual threads for embedded caches
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Previously virtual threads were used when at least two CPU cores were available.
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Starting with this version, virtual threads are only used when at least four CPU cores are available.
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This change should prevent deadlocks due to pinned virtual threads.
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=== Accepting URL paths without a semicolon
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Previously {project_name} accepted HTTP requests with paths containing a semicolon (`;`).
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When processing them, it handled them as of RFC 3986 as a separator for matrix parameters, which basically ignored those parts.
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As this has led to a hard-to-configure URL filtering, for example, in reverse proxies, this is now disabled, and {project_name} responds with an HTTP 400 response code.
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To analyze rejected requests in the server log, enable debug logging for `org.keycloak.quarkus.runtime.services.RejectNonNormalizedPathFilter`.
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To revert to the previous behavior and to accept matrix parameters set the option `http-accept-non-normalized-paths` to `true`.
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With this configuration, enable and review the HTTP access log to identify problematic requests.
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