5 This file gives a brief overview of the major changes between each OpenSSL
6 release. For more details please read the CHANGES file.
8 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6:
10 o Some documentation for BIO and SSL libraries.
11 o Enhanced chain verification using key identifiers.
12 o New sign and verify options to 'dgst' application.
13 o Support for DER and PEM encoded messages in 'smime' application.
14 o New 'rsautl' application, low level RSA utility.
16 o Bugfix for SSL rollback padding check.
17 o Support for external crypto devices [1].
18 o Enhanced EVP interface.
20 [1] The support for external crypto devices is currently a separate
21 distribution. See the file README.ENGINE.
23 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a:
25 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
26 o Shared library support for HPUX and Solaris-gcc
27 o Support of Linux/IA64
28 o Assembler support for Mingw32
29 o New 'rand' application
30 o New way to check for existence of algorithms from scripts
32 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5:
34 o S/MIME support in new 'smime' command
35 o Documentation for the OpenSSL command line application
36 o Automation of 'req' application
37 o Fixes to make s_client, s_server work under Windows
38 o Support for multiple fieldnames in SPKACs
39 o New SPKAC command line utilty and associated library functions
40 o Options to allow passwords to be obtained from various sources
41 o New public key PEM format and options to handle it
42 o Many other fixes and enhancements to command line utilities
43 o Usable certificate chain verification
44 o Certificate purpose checking
45 o Certificate trust settings
46 o Support of authority information access extension
47 o Extensions in certificate requests
48 o Simplified X509 name and attribute routines
49 o Initial (incomplete) support for international character sets
50 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
51 o Read only memory BIOs and simplified creation function
52 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
53 record; allow fragmentation and interleaving of handshake and other
55 o TLS/SSL code now "tolerates" MS SGC
56 o Work around for Netscape client certificate hang bug
57 o RSA_NULL option that removes RSA patent code but keeps other
59 o Memory leak detection now allows applications to add extra information
60 via a per-thread stack
61 o PRNG robustness improved
63 o BIGNUM library bug fixes
64 o Faster DSA parameter generation
65 o Enhanced support for Alpha Linux
66 o Experimental MacOS support
68 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4:
70 o Transparent support for PKCS#8 format private keys: these are used
71 by several software packages and are more secure than the standard
73 o PKCS#5 v2.0 implementation
74 o Password callbacks have a new void * argument for application data
75 o Avoid various memory leaks
76 o New pipe-like BIO that allows using the SSL library when actual I/O
77 must be handled by the application (BIO pair)
79 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3:
80 o Lots of enhancements and cleanups to the Configuration mechanism
81 o RSA OEAP related fixes
82 o Added `openssl ca -revoke' option for revoking a certificate
83 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
84 o Source tree cleanups: removed lots of obsolete files
85 o Thawte SXNet, certificate policies and CRL distribution points
87 o Preliminary (experimental) S/MIME support
88 o Support for ASN.1 UTF8String and VisibleString
89 o Full integration of PKCS#12 code
90 o Sparc assembler bignum implementation, optimized hash functions
91 o Option to disable selected ciphers
93 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b:
94 o Fixed a security hole related to session resumption
95 o Fixed RSA encryption routines for the p < q case
96 o "ALL" in cipher lists now means "everything except NULL ciphers"
97 o Support for Triple-DES CBCM cipher
98 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
99 o First support for new TLSv1 ciphers
100 o Added a few new BIOs (syslog BIO, reliable BIO)
101 o Extended support for DSA certificate/keys.
102 o Extended support for Certificate Signing Requests (CSR)
103 o Initial support for X.509v3 extensions
104 o Extended support for compression inside the SSL record layer
105 o Overhauled Win32 builds
106 o Cleanups and fixes to the Big Number (BN) library
107 o Support for ASN.1 GeneralizedTime
108 o Splitted ASN.1 SETs from SEQUENCEs
109 o ASN1 and PEM support for Netscape Certificate Sequences
110 o Overhauled Perl interface
111 o Lots of source tree cleanups.
112 o Lots of memory leak fixes.
115 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c:
116 o Integration of the popular NO_RSA/NO_DSA patches
117 o Initial support for compression inside the SSL record layer
118 o Added BIO proxy and filtering functionality
119 o Extended Big Number (BN) library
120 o Added RIPE MD160 message digest
121 o Addeed support for RC2/64bit cipher
122 o Extended ASN.1 parser routines
123 o Adjustations of the source tree for CVS
124 o Support for various new platforms