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