This file gives a brief overview of the major changes between each OpenSSL
release. For more details please read the CHANGES file.
- Major changes between OpenSSL 0.9.6 and OpenSSL x.x.x:
+ Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f:
+
+ o Several compilation issues fixed.
+ o Many memory allocation failure checks added.
+ o Improved comparison of X509 Name type.
+ o Mandatory basic checks on certificates.
+ o Performance improvements.
+
+ Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e:
+
+ o Fix race condition in CRL checking code.
+ o Fixes to PKCS#7 (S/MIME) code.
+
+ Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d:
+
+ o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
+ o Security: Fix null-pointer assignment in do_change_cipher_spec()
+ o Allow multiple active certificates with same subject in CA index
+ o Multiple X509 verification fixes
+ o Speed up HMAC and other operations
+
+ Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c:
+
+ o Security: fix various ASN1 parsing bugs.
+ o New -ignore_err option to OCSP utility.
+ o Various interop and bug fixes in S/MIME code.
+ o SSL/TLS protocol fix for unrequested client certificates.
+
+ Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b:
+
+ o Security: counter the Klima-Pokorny-Rosa extension of
+ Bleichbacher's attack
+ o Security: make RSA blinding default.
+ o Configuration: Irix fixes, AIX fixes, better mingw support.
+ o Support for new platforms: linux-ia64-ecc.
+ o Build: shared library support fixes.
+ o ASN.1: treat domainComponent correctly.
+ o Documentation: fixes and additions.
+
+ Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a:
+
+ o Security: Important security related bugfixes.
+ o Enhanced compatibility with MIT Kerberos.
+ o Can be built without the ENGINE framework.
+ o IA32 assembler enhancements.
+ o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
+ o Configuration: the no-err option now works properly.
+ o SSL/TLS: now handles manual certificate chain building.
+ o SSL/TLS: certain session ID malfunctions corrected.
+
+ Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7:
o New library section OCSP.
- o Complete haul-over of the ASN.1 library section [1].
+ o Complete rewrite of ASN1 code.
+ o CRL checking in verify code and openssl utility.
+ o Extension copying in 'ca' utility.
+ o Flexible display options in 'ca' utility.
+ o Provisional support for international characters with UTF8.
+ o Support for external crypto devices ('engine') is no longer
+ a separate distribution.
+ o New elliptic curve library section.
+ o New AES (Rijndael) library section.
+ o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
+ Linux x86_64, Linux 64-bit on Sparc v9
+ o Extended support for some platforms: VxWorks
+ o Enhanced support for shared libraries.
+ o Now only builds PIC code when shared library support is requested.
+ o Support for pkg-config.
+ o Lots of new manuals.
+ o Makes symbolic links to or copies of manuals to cover all described
+ functions.
+ o Change DES API to clean up the namespace (some applications link also
+ against libdes providing similar functions having the same name).
+ Provide macros for backward compatibility (will be removed in the
+ future).
+ o Unify handling of cryptographic algorithms (software and engine)
+ to be available via EVP routines for asymmetric and symmetric ciphers.
+ o NCONF: new configuration handling routines.
+ o Change API to use more 'const' modifiers to improve error checking
+ and help optimizers.
+ o Finally remove references to RSAref.
+ o Reworked parts of the BIGNUM code.
+ o Support for new engines: Broadcom ubsec, Accelerated Encryption
+ Processing, IBM 4758.
+ o A few new engines added in the demos area.
+ o Extended and corrected OID (object identifier) table.
+ o PRNG: query at more locations for a random device, automatic query for
+ EGD style random sources at several locations.
+ o SSL/TLS: allow optional cipher choice according to server's preference.
+ o SSL/TLS: allow server to explicitly set new session ids.
+ o SSL/TLS: support Kerberos cipher suites (RFC2712).
+ Only supports MIT Kerberos for now.
+ o SSL/TLS: allow more precise control of renegotiations and sessions.
+ o SSL/TLS: add callback to retrieve SSL/TLS messages.
+ o SSL/TLS: support AES cipher suites (RFC3268).
+
+ Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k:
+
+ o Security: fix various ASN1 parsing bugs.
+ o SSL/TLS protocol fix for unrequested client certificates.
+
+ Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j:
+
+ o Security: counter the Klima-Pokorny-Rosa extension of
+ Bleichbacher's attack
+ o Security: make RSA blinding default.
+ o Build: shared library support fixes.
+
+ Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i:
+
+ o Important security related bugfixes.
+
+ Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h:
+
+ o New configuration targets for Tandem OSS and A/UX.
+ o New OIDs for Microsoft attributes.
+ o Better handling of SSL session caching.
+ o Better comparison of distinguished names.
+ o Better handling of shared libraries in a mixed GNU/non-GNU environment.
+ o Support assembler code with Borland C.
+ o Fixes for length problems.
+ o Fixes for uninitialised variables.
+ o Fixes for memory leaks, some unusual crashes and some race conditions.
+ o Fixes for smaller building problems.
+ o Updates of manuals, FAQ and other instructive documents.
+
+ Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g:
+
+ o Important building fixes on Unix.
+
+ Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f:
+
+ o Various important bugfixes.
+
+ Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e:
+
+ o Important security related bugfixes.
+ o Various SSL/TLS library bugfixes.
+
+ Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d:
+
+ o Various SSL/TLS library bugfixes.
+ o Fix DH parameter generation for 'non-standard' generators.
+
+ Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c:
+
+ o Various SSL/TLS library bugfixes.
+ o BIGNUM library fixes.
+ o RSA OAEP and random number generation fixes.
+ o Object identifiers corrected and added.
+ o Add assembler BN routines for IA64.
+ o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
+ MIPS Linux; shared library support for Irix, HP-UX.
+ o Add crypto accelerator support for AEP, Baltimore SureWare,
+ Broadcom and Cryptographic Appliance's keyserver
+ [in 0.9.6c-engine release].
+
+ Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b:
+
+ o Security fix: PRNG improvements.
+ o Security fix: RSA OAEP check.
+ o Security fix: Reinsert and fix countermeasure to Bleichbacher's
+ attack.
+ o MIPS bug fix in BIGNUM.
+ o Bug fix in "openssl enc".
+ o Bug fix in X.509 printing routine.
+ o Bug fix in DSA verification routine and DSA S/MIME verification.
+ o Bug fix to make PRNG thread-safe.
+ o Bug fix in RAND_file_name().
+ o Bug fix in compatibility mode trust settings.
+ o Bug fix in blowfish EVP.
+ o Increase default size for BIO buffering filter.
+ o Compatibility fixes in some scripts.
+
+ Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a:
- [1] The haul-over is currently a separate line of development.
+ o Security fix: change behavior of OpenSSL to avoid using
+ environment variables when running as root.
+ o Security fix: check the result of RSA-CRT to reduce the
+ possibility of deducing the private key from an incorrectly
+ calculated signature.
+ o Security fix: prevent Bleichenbacher's DSA attack.
+ o Security fix: Zero the premaster secret after deriving the
+ master secret in DH ciphersuites.
+ o Reimplement SSL_peek(), which had various problems.
+ o Compatibility fix: the function des_encrypt() renamed to
+ des_encrypt1() to avoid clashes with some Unixen libc.
+ o Bug fixes for Win32, HP/UX and Irix.
+ o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
+ memory checking routines.
+ o Bug fixes for RSA operations in threaded environments.
+ o Bug fixes in misc. openssl applications.
+ o Remove a few potential memory leaks.
+ o Add tighter checks of BIGNUM routines.
+ o Shared library support has been reworked for generality.
+ o More documentation.
+ o New function BN_rand_range().
+ o Add "-rand" option to openssl s_client and s_server.
Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6: