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.. _mozilla_projects_nss_nss_3_78_release_notes:
NSS 3.78 release notes
======================
`Introduction <#introduction>`__
--------------------------------
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Network Security Services (NSS) 3.78 was released on **28 April 2022**.
`Distribution Information <#distribution_information>`__
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The HG tag is NSS_3_78_RTM. NSS 3.78 requires NSPR 4.32 or newer.
NSS 3.78 source distributions are available on ftp.mozilla.org for secure HTTPS download:
- Source tarballs:
Other releases are available :ref:`mozilla_projects_nss_releases`.
.. _changes_in_nss_3.78:
`Changes in NSS 3.78 <#changes_in_nss_3.78>`__
----------------------------------------------------
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- Bug 1755264 - Added TLS 1.3 zero-length inner plaintext checks and tests, zero-length record/fragment handling tests.
- Bug 1294978 - Reworked overlong record size checks and added TLS1.3 specific boundaries.
- Bug 1763120 - Add ECH Grease Support to tstclnt
- Bug 1765003 - Add a strict variant of moz::pkix::CheckCertHostname.
- Bug 1166338 - Change SSL_REUSE_SERVER_ECDHE_KEY default to false.
- Bug 1760813 - Make SEC_PKCS12EnableCipher succeed
- Bug 1762489 - Update zlib in NSS to 1.2.12.
`Compatibility <#compatibility>`__
----------------------------------
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NSS 3.78 shared libraries are backwards-compatible with all older NSS 3.x shared
libraries. A program linked with older NSS 3.x shared libraries will work with
this new version of the shared libraries without recompiling or
relinking. Furthermore, applications that restrict their use of NSS APIs to the
functions listed in NSS Public Functions will remain compatible with future
versions of the NSS shared libraries.
`Feedback <#feedback>`__
------------------------
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Bugs discovered should be reported by filing a bug report on
`bugzilla.mozilla.org <https://bugzilla.mozilla.org/enter_bug.cgi?product=NSS>`__ (product NSS).