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