symfony/http-kernel
Provides a structured process for converting a Request into a Response
v8.1.5
900M downloads/mo
#35 most downloaded on composer
symfony/http-kernel
What this package is like to depend on
Last release today
22 Aug 2026
Ships fairly regularly
a new release about every 3 weeks
Rarely documented
notes for 31 of 742 stable releases
Nothing withdrawn
no release was ever pulled
15 years old
854 releases · first in 2011
83 releases in the last 12 months
see the full history below
Release timeline
853 releases · Oct 2011 to Aug 2026Releases
latest 60 of 854-
v8.1.522 Aug 2026Release notes
Open source →Changelog (v8.1.4...v8.1.5)
- bug #65540 Fix caching responses that cannot provide their content (@nicolas-grekas)
- bug #65526 Restore the locale that was in use before a sub-request (@nicolas-grekas)
- bug #65516 Forward the request headers to inline rendered fragments (@nicolas-grekas)
- bug #65512 Ignore the session id that PHP kept from a previous request (@nicolas-grekas)
- bug #65496 Send the response content before terminating the kernel in the test client (@nicolas-grekas)
- bug #65472 Write pending dumps to the output before dd() exits (@nicolas-grekas)
- bug #65448 Fix concurrent cache warmups corrupting the deprecations log (@lazerg)
- bug #65367 Fix PHP 8.6 deprecations (@nicolas-grekas)
- bug #65249 Fix undefined variable when locking the container build fails early (@javiereguiluz)
-
v8.1.407 Aug 2026Release notes
Open source →Changelog (v8.1.2...v8.1.4)
- bug #65180 Fix failing reset methods preventing later services from resetting (@javiereguiluz)
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v8.1.229 Jul 2026Release notes
Open source →Changelog (v8.1.1...v8.1.2)
- bug #65022 Don't crash on a non-string signature in UriSigner (@nicolas-grekas)
- bug #65008 Fix the escaping of the generated curl command (@nicolas-grekas)
- bug #64986 Fix the curl command when a cookie holds an array (@maximilian-walter)
- bug #64864 Keep converting scalars of a form payload that carries an uploaded file (@Amoifr)
- bug #64932 Do not expose the
BundleAdapterclass in thekernel.bundlesparameter (@mpdude) - minor #64816 Allow Twig 4 (@xabbuh)
- data #64730 Release v8.0.14
- data #64729 Release v7.4.14
- data #64728 Release v6.4.42
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v8.1.127 Jun 2026Release notes
Open source →Changelog (v8.1.0...v8.1.1)
- data #64731 Release v8.1.1
- bug #64474 Allow leading zeros in int request attributes (@ousamabenyounes)
- minor #64476 Unsafe unserialize phpstan rule (@jack-worman)
- bug #64532 Restore null-on-invalid for nullable # controller args (@ousamabenyounes, @pokki-deploy)
- bug #64419 Add allowed_classes => false to unserialize() in CacheWarmerAggregate, LoggerDataCollector, and HttpCache Store (@XananasX7)
- minor #64437 Add
@templateon ControllerAttributeEvent (@lyrixx) - bug #64449 Fix # being handled before # (@nicolas-grekas)
- bug #64426 Fix TypeError in ResponseEvent when argument resolution throws (@nicolas-grekas)
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v8.1.029 May 2026Nothing published for this version
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v8.1.0-RC127 May 2026 pre-releaseNothing published for this version
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v8.1.0-BETA320 May 2026 pre-releaseNothing published for this version
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v8.1.0-BETA213 May 2026 pre-releaseNothing published for this version
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v8.1.0-BETA106 May 2026 pre-releaseNothing published for this version
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v8.0.1529 Jul 2026Release notes
Open source →Changelog (v8.0.14...v8.0.15)
- bug #65022 Don't crash on a non-string signature in UriSigner (@nicolas-grekas)
- minor #64816 Allow Twig 4 (@xabbuh)
- data #64729 Release v7.4.14
- data #64728 Release v6.4.42
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v8.0.1427 Jun 2026Nothing published for this version
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v8.0.1327 May 2026Nothing published for this version
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v8.0.1220 May 2026Nothing published for this version
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v8.0.1113 May 2026Nothing published for this version
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v8.0.1006 May 2026Nothing published for this version
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v8.0.831 Mar 2026Nothing published for this version
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v8.0.706 Mar 2026Nothing published for this version
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v8.0.626 Feb 2026Nothing published for this version
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v8.0.528 Jan 2026Nothing published for this version
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v8.0.425 Jan 2026Nothing published for this version
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v8.0.331 Dec 2025Nothing published for this version
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v8.0.208 Dec 2025Nothing published for this version
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v8.0.107 Dec 2025Nothing published for this version
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v8.0.027 Nov 2025Nothing published for this version
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v8.0.0-RC321 Nov 2025 pre-releaseNothing published for this version
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v8.0.0-RC216 Nov 2025 pre-releaseNothing published for this version
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v8.0.0-RC113 Nov 2025 pre-releaseNothing published for this version
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v8.0.0-BETA202 Nov 2025 pre-releaseNothing published for this version
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v8.0.0-BETA127 Oct 2025 pre-releaseNothing published for this version
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v7.4.1722 Aug 2026Release notes
Open source →Changelog (v7.4.16...v7.4.17)
- bug #65540 Fix caching responses that cannot provide their content (@nicolas-grekas)
- bug #65526 Restore the locale that was in use before a sub-request (@nicolas-grekas)
- bug #65516 Forward the request headers to inline rendered fragments (@nicolas-grekas)
- bug #65512 Ignore the session id that PHP kept from a previous request (@nicolas-grekas)
- bug #65496 Send the response content before terminating the kernel in the test client (@nicolas-grekas)
- bug #65472 Write pending dumps to the output before dd() exits (@nicolas-grekas)
- bug #65448 Fix concurrent cache warmups corrupting the deprecations log (@lazerg)
- bug #65367 Fix PHP 8.6 deprecations (@nicolas-grekas)
- bug #65249 Fix undefined variable when locking the container build fails early (@javiereguiluz)
-
v7.4.1607 Aug 2026Release notes
Open source →Changelog (v7.4.15...v7.4.16)
- bug #65180 Fix failing reset methods preventing later services from resetting (@javiereguiluz)
-
v7.4.1529 Jul 2026Release notes
Open source →Changelog (v7.4.14...v7.4.15)
- bug #65022 Don't crash on a non-string signature in UriSigner (@nicolas-grekas)
- minor #64816 Allow Twig 4 (@xabbuh)
- data #64728 Release v6.4.42
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v7.4.1427 Jun 2026Nothing published for this version
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v7.4.1327 May 2026Nothing published for this version
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v7.4.1220 May 2026Nothing published for this version
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v7.4.1113 May 2026Nothing published for this version
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v7.4.1006 May 2026Nothing published for this version
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v7.4.831 Mar 2026Nothing published for this version
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v7.4.706 Mar 2026Nothing published for this version
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v7.4.626 Feb 2026Nothing published for this version
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v7.4.528 Jan 2026Nothing published for this version
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v7.4.424 Jan 2026Nothing published for this version
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v7.4.331 Dec 2025Nothing published for this version
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v7.4.208 Dec 2025Nothing published for this version
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v7.4.107 Dec 2025Nothing published for this version
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v7.4.027 Nov 2025Nothing published for this version
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v7.4.0-RC321 Nov 2025 pre-releaseNothing published for this version
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v7.4.0-RC216 Nov 2025 pre-releaseNothing published for this version
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v7.4.0-RC113 Nov 2025 pre-releaseNothing published for this version
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v7.4.0-BETA202 Nov 2025 pre-releaseNothing published for this version
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v7.4.0-BETA127 Oct 2025 pre-releaseNothing published for this version
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v7.3.1128 Jan 2026Nothing published for this version
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v7.3.1024 Jan 2026Nothing published for this version
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v7.3.931 Dec 2025Nothing published for this version
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v7.3.807 Dec 2025Nothing published for this version
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v7.3.712 Nov 2025Nothing published for this version
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v7.3.606 Nov 2025Nothing published for this version
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v7.3.528 Oct 2025Nothing published for this version
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v7.3.427 Sep 2025Nothing published for this version
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v7.3.329 Aug 2025Nothing published for this version