NEWS revision 337982
1
2  NEWS
3  ====
4
5  This file gives a brief overview of the major changes between each OpenSSL
6  release. For more details please read the CHANGES file.
7
8  Major changes between OpenSSL 1.0.2o and OpenSSL 1.0.2p [14 Aug 2018]
9
10      o Client DoS due to large DH parameter (CVE-2018-0732)
11      o Cache timing vulnerability in RSA Key Generation (CVE-2018-0737)
12
13  Major changes between OpenSSL 1.0.2n and OpenSSL 1.0.2o [27 Mar 2018]
14
15      o Constructed ASN.1 types with a recursive definition could exceed the
16        stack (CVE-2018-0739)
17
18  Major changes between OpenSSL 1.0.2m and OpenSSL 1.0.2n [7 Dec 2017]
19
20      o Read/write after SSL object in error state (CVE-2017-3737)
21      o rsaz_1024_mul_avx2 overflow bug on x86_64 (CVE-2017-3738)
22
23  Major changes between OpenSSL 1.0.2l and OpenSSL 1.0.2m [2 Nov 2017]
24
25      o bn_sqrx8x_internal carry bug on x86_64 (CVE-2017-3736)
26      o Malformed X.509 IPAddressFamily could cause OOB read (CVE-2017-3735)
27
28  Major changes between OpenSSL 1.0.2k and OpenSSL 1.0.2l [25 May 2017]
29
30      o config now recognises 64-bit mingw and chooses mingw64 instead of mingw
31
32  Major changes between OpenSSL 1.0.2j and OpenSSL 1.0.2k [26 Jan 2017]
33
34      o Truncated packet could crash via OOB read (CVE-2017-3731)
35      o BN_mod_exp may produce incorrect results on x86_64 (CVE-2017-3732)
36      o Montgomery multiplication may produce incorrect results (CVE-2016-7055)
37
38  Major changes between OpenSSL 1.0.2i and OpenSSL 1.0.2j [26 Sep 2016]
39
40      o Missing CRL sanity check (CVE-2016-7052)
41
42  Major changes between OpenSSL 1.0.2h and OpenSSL 1.0.2i [22 Sep 2016]
43
44      o OCSP Status Request extension unbounded memory growth (CVE-2016-6304)
45      o SWEET32 Mitigation (CVE-2016-2183)
46      o OOB write in MDC2_Update() (CVE-2016-6303)
47      o Malformed SHA512 ticket DoS (CVE-2016-6302)
48      o OOB write in BN_bn2dec() (CVE-2016-2182)
49      o OOB read in TS_OBJ_print_bio() (CVE-2016-2180)
50      o Pointer arithmetic undefined behaviour (CVE-2016-2177)
51      o Constant time flag not preserved in DSA signing (CVE-2016-2178)
52      o DTLS buffered message DoS (CVE-2016-2179)
53      o DTLS replay protection DoS (CVE-2016-2181)
54      o Certificate message OOB reads (CVE-2016-6306)
55
56  Major changes between OpenSSL 1.0.2g and OpenSSL 1.0.2h [3 May 2016]
57
58      o Prevent padding oracle in AES-NI CBC MAC check (CVE-2016-2107)
59      o Fix EVP_EncodeUpdate overflow (CVE-2016-2105)
60      o Fix EVP_EncryptUpdate overflow (CVE-2016-2106)
61      o Prevent ASN.1 BIO excessive memory allocation (CVE-2016-2109)
62      o EBCDIC overread (CVE-2016-2176)
63      o Modify behavior of ALPN to invoke callback after SNI/servername
64        callback, such that updates to the SSL_CTX affect ALPN.
65      o Remove LOW from the DEFAULT cipher list.  This removes singles DES from
66        the default.
67      o Only remove the SSLv2 methods with the no-ssl2-method option.
68
69  Major changes between OpenSSL 1.0.2f and OpenSSL 1.0.2g [1 Mar 2016]
70
71      o Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
72      o Disable SSLv2 default build, default negotiation and weak ciphers
73        (CVE-2016-0800)
74      o Fix a double-free in DSA code (CVE-2016-0705)
75      o Disable SRP fake user seed to address a server memory leak
76        (CVE-2016-0798)
77      o Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
78        (CVE-2016-0797)
79      o Fix memory issues in BIO_*printf functions (CVE-2016-0799)
80      o Fix side channel attack on modular exponentiation (CVE-2016-0702)
81
82  Major changes between OpenSSL 1.0.2e and OpenSSL 1.0.2f [28 Jan 2016]
83
84      o DH small subgroups (CVE-2016-0701)
85      o SSLv2 doesn't block disabled ciphers (CVE-2015-3197)
86
87  Major changes between OpenSSL 1.0.2d and OpenSSL 1.0.2e [3 Dec 2015]
88
89      o BN_mod_exp may produce incorrect results on x86_64 (CVE-2015-3193)
90      o Certificate verify crash with missing PSS parameter (CVE-2015-3194)
91      o X509_ATTRIBUTE memory leak (CVE-2015-3195)
92      o Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs
93      o In DSA_generate_parameters_ex, if the provided seed is too short,
94        return an error
95
96  Major changes between OpenSSL 1.0.2c and OpenSSL 1.0.2d [9 Jul 2015]
97
98      o Alternate chains certificate forgery (CVE-2015-1793)
99      o Race condition handling PSK identify hint (CVE-2015-3196)
100
101  Major changes between OpenSSL 1.0.2b and OpenSSL 1.0.2c [12 Jun 2015]
102
103      o Fix HMAC ABI incompatibility
104
105  Major changes between OpenSSL 1.0.2a and OpenSSL 1.0.2b [11 Jun 2015]
106
107      o Malformed ECParameters causes infinite loop (CVE-2015-1788)
108      o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789)
109      o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790)
110      o CMS verify infinite loop with unknown hash function (CVE-2015-1792)
111      o Race condition handling NewSessionTicket (CVE-2015-1791)
112
113  Major changes between OpenSSL 1.0.2 and OpenSSL 1.0.2a [19 Mar 2015]
114
115      o OpenSSL 1.0.2 ClientHello sigalgs DoS fix (CVE-2015-0291)
116      o Multiblock corrupted pointer fix (CVE-2015-0290)
117      o Segmentation fault in DTLSv1_listen fix (CVE-2015-0207)
118      o Segmentation fault in ASN1_TYPE_cmp fix (CVE-2015-0286)
119      o Segmentation fault for invalid PSS parameters fix (CVE-2015-0208)
120      o ASN.1 structure reuse memory corruption fix (CVE-2015-0287)
121      o PKCS7 NULL pointer dereferences fix (CVE-2015-0289)
122      o DoS via reachable assert in SSLv2 servers fix (CVE-2015-0293)
123      o Empty CKE with client auth and DHE fix (CVE-2015-1787)
124      o Handshake with unseeded PRNG fix (CVE-2015-0285)
125      o Use After Free following d2i_ECPrivatekey error fix (CVE-2015-0209)
126      o X509_to_X509_REQ NULL pointer deref fix (CVE-2015-0288)
127      o Removed the export ciphers from the DEFAULT ciphers
128
129  Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.2 [22 Jan 2015]:
130
131      o Suite B support for TLS 1.2 and DTLS 1.2
132      o Support for DTLS 1.2
133      o TLS automatic EC curve selection.
134      o API to set TLS supported signature algorithms and curves
135      o SSL_CONF configuration API.
136      o TLS Brainpool support.
137      o ALPN support.
138      o CMS support for RSA-PSS, RSA-OAEP, ECDH and X9.42 DH.
139
140  Major changes between OpenSSL 1.0.1k and OpenSSL 1.0.1l [15 Jan 2015]
141
142      o Build fixes for the Windows and OpenVMS platforms
143
144  Major changes between OpenSSL 1.0.1j and OpenSSL 1.0.1k [8 Jan 2015]
145
146      o Fix for CVE-2014-3571
147      o Fix for CVE-2015-0206
148      o Fix for CVE-2014-3569
149      o Fix for CVE-2014-3572
150      o Fix for CVE-2015-0204
151      o Fix for CVE-2015-0205
152      o Fix for CVE-2014-8275
153      o Fix for CVE-2014-3570
154
155  Major changes between OpenSSL 1.0.1i and OpenSSL 1.0.1j [15 Oct 2014]
156
157      o Fix for CVE-2014-3513
158      o Fix for CVE-2014-3567
159      o Mitigation for CVE-2014-3566 (SSL protocol vulnerability)
160      o Fix for CVE-2014-3568
161
162  Major changes between OpenSSL 1.0.1h and OpenSSL 1.0.1i [6 Aug 2014]
163
164      o Fix for CVE-2014-3512
165      o Fix for CVE-2014-3511
166      o Fix for CVE-2014-3510
167      o Fix for CVE-2014-3507
168      o Fix for CVE-2014-3506
169      o Fix for CVE-2014-3505
170      o Fix for CVE-2014-3509
171      o Fix for CVE-2014-5139
172      o Fix for CVE-2014-3508
173
174  Major changes between OpenSSL 1.0.1g and OpenSSL 1.0.1h [5 Jun 2014]
175
176      o Fix for CVE-2014-0224
177      o Fix for CVE-2014-0221
178      o Fix for CVE-2014-0198
179      o Fix for CVE-2014-0195
180      o Fix for CVE-2014-3470
181      o Fix for CVE-2010-5298
182
183  Major changes between OpenSSL 1.0.1f and OpenSSL 1.0.1g [7 Apr 2014]
184
185      o Fix for CVE-2014-0160
186      o Add TLS padding extension workaround for broken servers.
187      o Fix for CVE-2014-0076
188
189  Major changes between OpenSSL 1.0.1e and OpenSSL 1.0.1f [6 Jan 2014]
190
191      o Don't include gmt_unix_time in TLS server and client random values
192      o Fix for TLS record tampering bug CVE-2013-4353
193      o Fix for TLS version checking bug CVE-2013-6449
194      o Fix for DTLS retransmission bug CVE-2013-6450
195
196  Major changes between OpenSSL 1.0.1d and OpenSSL 1.0.1e [11 Feb 2013]:
197
198      o Corrected fix for CVE-2013-0169
199
200  Major changes between OpenSSL 1.0.1c and OpenSSL 1.0.1d [4 Feb 2013]:
201
202      o Fix renegotiation in TLS 1.1, 1.2 by using the correct TLS version.
203      o Include the fips configuration module.
204      o Fix OCSP bad key DoS attack CVE-2013-0166
205      o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
206      o Fix for TLS AESNI record handling flaw CVE-2012-2686
207
208  Major changes between OpenSSL 1.0.1b and OpenSSL 1.0.1c [10 May 2012]:
209
210      o Fix TLS/DTLS record length checking bug CVE-2012-2333
211      o Don't attempt to use non-FIPS composite ciphers in FIPS mode.
212
213  Major changes between OpenSSL 1.0.1a and OpenSSL 1.0.1b [26 Apr 2012]:
214
215      o Fix compilation error on non-x86 platforms.
216      o Make FIPS capable OpenSSL ciphers work in non-FIPS mode.
217      o Fix SSL_OP_NO_TLSv1_1 clash with SSL_OP_ALL in OpenSSL 1.0.0
218
219  Major changes between OpenSSL 1.0.1 and OpenSSL 1.0.1a [19 Apr 2012]:
220
221      o Fix for ASN1 overflow bug CVE-2012-2110
222      o Workarounds for some servers that hang on long client hellos.
223      o Fix SEGV in AES code.
224
225  Major changes between OpenSSL 1.0.0h and OpenSSL 1.0.1 [14 Mar 2012]:
226
227      o TLS/DTLS heartbeat support.
228      o SCTP support.
229      o RFC 5705 TLS key material exporter.
230      o RFC 5764 DTLS-SRTP negotiation.
231      o Next Protocol Negotiation.
232      o PSS signatures in certificates, requests and CRLs.
233      o Support for password based recipient info for CMS.
234      o Support TLS v1.2 and TLS v1.1.
235      o Preliminary FIPS capability for unvalidated 2.0 FIPS module.
236      o SRP support.
237
238  Major changes between OpenSSL 1.0.0g and OpenSSL 1.0.0h [12 Mar 2012]:
239
240      o Fix for CMS/PKCS#7 MMA CVE-2012-0884
241      o Corrected fix for CVE-2011-4619
242      o Various DTLS fixes.
243
244  Major changes between OpenSSL 1.0.0f and OpenSSL 1.0.0g [18 Jan 2012]:
245
246      o Fix for DTLS DoS issue CVE-2012-0050
247
248  Major changes between OpenSSL 1.0.0e and OpenSSL 1.0.0f [4 Jan 2012]:
249
250      o Fix for DTLS plaintext recovery attack CVE-2011-4108
251      o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
252      o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
253      o Check parameters are not NULL in GOST ENGINE CVE-2012-0027
254      o Check for malformed RFC3779 data CVE-2011-4577
255
256  Major changes between OpenSSL 1.0.0d and OpenSSL 1.0.0e [6 Sep 2011]:
257
258      o Fix for CRL vulnerability issue CVE-2011-3207
259      o Fix for ECDH crashes CVE-2011-3210
260      o Protection against EC timing attacks.
261      o Support ECDH ciphersuites for certificates using SHA2 algorithms.
262      o Various DTLS fixes.
263
264  Major changes between OpenSSL 1.0.0c and OpenSSL 1.0.0d [8 Feb 2011]:
265
266      o Fix for security issue CVE-2011-0014
267
268  Major changes between OpenSSL 1.0.0b and OpenSSL 1.0.0c [2 Dec 2010]:
269
270      o Fix for security issue CVE-2010-4180
271      o Fix for CVE-2010-4252
272      o Fix mishandling of absent EC point format extension.
273      o Fix various platform compilation issues.
274      o Corrected fix for security issue CVE-2010-3864.
275
276  Major changes between OpenSSL 1.0.0a and OpenSSL 1.0.0b [16 Nov 2010]:
277
278      o Fix for security issue CVE-2010-3864.
279      o Fix for CVE-2010-2939
280      o Fix WIN32 build system for GOST ENGINE.
281
282  Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a [1 Jun 2010]:
283
284      o Fix for security issue CVE-2010-1633.
285      o GOST MAC and CFB fixes.
286
287  Major changes between OpenSSL 0.9.8n and OpenSSL 1.0.0 [29 Mar 2010]:
288
289      o RFC3280 path validation: sufficient to process PKITS tests.
290      o Integrated support for PVK files and keyblobs.
291      o Change default private key format to PKCS#8.
292      o CMS support: able to process all examples in RFC4134
293      o Streaming ASN1 encode support for PKCS#7 and CMS.
294      o Multiple signer and signer add support for PKCS#7 and CMS.
295      o ASN1 printing support.
296      o Whirlpool hash algorithm added.
297      o RFC3161 time stamp support.
298      o New generalised public key API supporting ENGINE based algorithms.
299      o New generalised public key API utilities.
300      o New ENGINE supporting GOST algorithms.
301      o SSL/TLS GOST ciphersuite support.
302      o PKCS#7 and CMS GOST support.
303      o RFC4279 PSK ciphersuite support.
304      o Supported points format extension for ECC ciphersuites.
305      o ecdsa-with-SHA224/256/384/512 signature types.
306      o dsa-with-SHA224 and dsa-with-SHA256 signature types.
307      o Opaque PRF Input TLS extension support.
308      o Updated time routines to avoid OS limitations.
309
310  Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
311
312      o CFB cipher definition fixes.
313      o Fix security issues CVE-2010-0740 and CVE-2010-0433.
314
315  Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
316
317      o Cipher definition fixes.
318      o Workaround for slow RAND_poll() on some WIN32 versions.
319      o Remove MD2 from algorithm tables.
320      o SPKAC handling fixes.
321      o Support for RFC5746 TLS renegotiation extension.
322      o Compression memory leak fixed.
323      o Compression session resumption fixed.
324      o Ticket and SNI coexistence fixes.
325      o Many fixes to DTLS handling. 
326
327  Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
328
329      o Temporary work around for CVE-2009-3555: disable renegotiation.
330
331  Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
332
333      o Fix various build issues.
334      o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
335
336  Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
337
338      o Fix security issue (CVE-2008-5077)
339      o Merge FIPS 140-2 branch code.
340
341  Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
342
343      o CryptoAPI ENGINE support.
344      o Various precautionary measures.
345      o Fix for bugs affecting certificate request creation.
346      o Support for local machine keyset attribute in PKCS#12 files.
347
348  Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
349
350      o Backport of CMS functionality to 0.9.8.
351      o Fixes for bugs introduced with 0.9.8f.
352
353  Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
354
355      o Add gcc 4.2 support.
356      o Add support for AES and SSE2 assembly lanugauge optimization
357        for VC++ build.
358      o Support for RFC4507bis and server name extensions if explicitly 
359        selected at compile time.
360      o DTLS improvements.
361      o RFC4507bis support.
362      o TLS Extensions support.
363
364  Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
365
366      o Various ciphersuite selection fixes.
367      o RFC3779 support.
368
369  Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
370
371      o Introduce limits to prevent malicious key DoS  (CVE-2006-2940)
372      o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
373      o Changes to ciphersuite selection algorithm
374
375  Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
376
377      o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
378      o New cipher Camellia
379
380  Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
381
382      o Cipher string fixes.
383      o Fixes for VC++ 2005.
384      o Updated ECC cipher suite support.
385      o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
386      o Zlib compression usage fixes.
387      o Built in dynamic engine compilation support on Win32.
388      o Fixes auto dynamic engine loading in Win32.
389
390  Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
391
392      o Fix potential SSL 2.0 rollback, CVE-2005-2969
393      o Extended Windows CE support
394
395  Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
396
397      o Major work on the BIGNUM library for higher efficiency and to
398        make operations more streamlined and less contradictory.  This
399        is the result of a major audit of the BIGNUM library.
400      o Addition of BIGNUM functions for fields GF(2^m) and NIST
401        curves, to support the Elliptic Crypto functions.
402      o Major work on Elliptic Crypto; ECDH and ECDSA added, including
403        the use through EVP, X509 and ENGINE.
404      o New ASN.1 mini-compiler that's usable through the OpenSSL
405        configuration file.
406      o Added support for ASN.1 indefinite length constructed encoding.
407      o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
408      o Complete rework of shared library construction and linking
409        programs with shared or static libraries, through a separate
410        Makefile.shared.
411      o Rework of the passing of parameters from one Makefile to another.
412      o Changed ENGINE framework to load dynamic engine modules
413        automatically from specifically given directories.
414      o New structure and ASN.1 functions for CertificatePair.
415      o Changed the ZLIB compression method to be stateful.
416      o Changed the key-generation and primality testing "progress"
417        mechanism to take a structure that contains the ticker
418        function and an argument.
419      o New engine module: GMP (performs private key exponentiation).
420      o New engine module: VIA PadLOck ACE extension in VIA C3
421        Nehemiah processors.
422      o Added support for IPv6 addresses in certificate extensions.
423        See RFC 1884, section 2.2.
424      o Added support for certificate policy mappings, policy
425        constraints and name constraints.
426      o Added support for multi-valued AVAs in the OpenSSL
427        configuration file.
428      o Added support for multiple certificates with the same subject
429        in the 'openssl ca' index file.
430      o Make it possible to create self-signed certificates using
431        'openssl ca -selfsign'.
432      o Make it possible to generate a serial number file with
433        'openssl ca -create_serial'.
434      o New binary search functions with extended functionality.
435      o New BUF functions.
436      o New STORE structure and library to provide an interface to all
437        sorts of data repositories.  Supports storage of public and
438        private keys, certificates, CRLs, numbers and arbitrary blobs.
439	This library is unfortunately unfinished and unused withing
440	OpenSSL.
441      o New control functions for the error stack.
442      o Changed the PKCS#7 library to support one-pass S/MIME
443        processing.
444      o Added the possibility to compile without old deprecated
445        functionality with the OPENSSL_NO_DEPRECATED macro or the
446        'no-deprecated' argument to the config and Configure scripts.
447      o Constification of all ASN.1 conversion functions, and other
448        affected functions.
449      o Improved platform support for PowerPC.
450      o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
451      o New X509_VERIFY_PARAM structure to support parametrisation
452        of X.509 path validation.
453      o Major overhaul of RC4 performance on Intel P4, IA-64 and
454        AMD64.
455      o Changed the Configure script to have some algorithms disabled
456        by default.  Those can be explicitely enabled with the new
457        argument form 'enable-xxx'.
458      o Change the default digest in 'openssl' commands from MD5 to
459        SHA-1.
460      o Added support for DTLS.
461      o New BIGNUM blinding.
462      o Added support for the RSA-PSS encryption scheme
463      o Added support for the RSA X.931 padding.
464      o Added support for BSD sockets on NetWare.
465      o Added support for files larger than 2GB.
466      o Added initial support for Win64.
467      o Added alternate pkg-config files.
468
469  Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
470
471      o FIPS 1.1.1 module linking.
472      o Various ciphersuite selection fixes.
473
474  Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
475
476      o Introduce limits to prevent malicious key DoS  (CVE-2006-2940)
477      o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
478
479  Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
480
481      o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
482
483  Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
484
485      o Visual C++ 2005 fixes.
486      o Update Windows build system for FIPS.
487
488  Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
489
490      o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
491
492  Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
493
494      o Fix SSL 2.0 Rollback, CVE-2005-2969
495      o Allow use of fixed-length exponent on DSA signing
496      o Default fixed-window RSA, DSA, DH private-key operations
497
498  Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
499
500      o More compilation issues fixed.
501      o Adaptation to more modern Kerberos API.
502      o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
503      o Enhanced x86_64 assembler BIGNUM module.
504      o More constification.
505      o Added processing of proxy certificates (RFC 3820).
506
507  Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
508
509      o Several compilation issues fixed.
510      o Many memory allocation failure checks added.
511      o Improved comparison of X509 Name type.
512      o Mandatory basic checks on certificates.
513      o Performance improvements.
514
515  Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
516
517      o Fix race condition in CRL checking code.
518      o Fixes to PKCS#7 (S/MIME) code.
519
520  Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
521
522      o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
523      o Security: Fix null-pointer assignment in do_change_cipher_spec()
524      o Allow multiple active certificates with same subject in CA index
525      o Multiple X509 verification fixes
526      o Speed up HMAC and other operations
527
528  Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
529
530      o Security: fix various ASN1 parsing bugs.
531      o New -ignore_err option to OCSP utility.
532      o Various interop and bug fixes in S/MIME code.
533      o SSL/TLS protocol fix for unrequested client certificates.
534
535  Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
536
537      o Security: counter the Klima-Pokorny-Rosa extension of
538        Bleichbacher's attack 
539      o Security: make RSA blinding default.
540      o Configuration: Irix fixes, AIX fixes, better mingw support.
541      o Support for new platforms: linux-ia64-ecc.
542      o Build: shared library support fixes.
543      o ASN.1: treat domainComponent correctly.
544      o Documentation: fixes and additions.
545
546  Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
547
548      o Security: Important security related bugfixes.
549      o Enhanced compatibility with MIT Kerberos.
550      o Can be built without the ENGINE framework.
551      o IA32 assembler enhancements.
552      o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
553      o Configuration: the no-err option now works properly.
554      o SSL/TLS: now handles manual certificate chain building.
555      o SSL/TLS: certain session ID malfunctions corrected.
556
557  Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
558
559      o New library section OCSP.
560      o Complete rewrite of ASN1 code.
561      o CRL checking in verify code and openssl utility.
562      o Extension copying in 'ca' utility.
563      o Flexible display options in 'ca' utility.
564      o Provisional support for international characters with UTF8.
565      o Support for external crypto devices ('engine') is no longer
566        a separate distribution.
567      o New elliptic curve library section.
568      o New AES (Rijndael) library section.
569      o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
570        Linux x86_64, Linux 64-bit on Sparc v9
571      o Extended support for some platforms: VxWorks
572      o Enhanced support for shared libraries.
573      o Now only builds PIC code when shared library support is requested.
574      o Support for pkg-config.
575      o Lots of new manuals.
576      o Makes symbolic links to or copies of manuals to cover all described
577        functions.
578      o Change DES API to clean up the namespace (some applications link also
579        against libdes providing similar functions having the same name).
580        Provide macros for backward compatibility (will be removed in the
581        future).
582      o Unify handling of cryptographic algorithms (software and engine)
583        to be available via EVP routines for asymmetric and symmetric ciphers.
584      o NCONF: new configuration handling routines.
585      o Change API to use more 'const' modifiers to improve error checking
586        and help optimizers.
587      o Finally remove references to RSAref.
588      o Reworked parts of the BIGNUM code.
589      o Support for new engines: Broadcom ubsec, Accelerated Encryption
590        Processing, IBM 4758.
591      o A few new engines added in the demos area.
592      o Extended and corrected OID (object identifier) table.
593      o PRNG: query at more locations for a random device, automatic query for
594        EGD style random sources at several locations.
595      o SSL/TLS: allow optional cipher choice according to server's preference.
596      o SSL/TLS: allow server to explicitly set new session ids.
597      o SSL/TLS: support Kerberos cipher suites (RFC2712).
598	Only supports MIT Kerberos for now.
599      o SSL/TLS: allow more precise control of renegotiations and sessions.
600      o SSL/TLS: add callback to retrieve SSL/TLS messages.
601      o SSL/TLS: support AES cipher suites (RFC3268).
602
603  Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
604
605      o Security: fix various ASN1 parsing bugs.
606      o SSL/TLS protocol fix for unrequested client certificates.
607
608  Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
609
610      o Security: counter the Klima-Pokorny-Rosa extension of
611        Bleichbacher's attack 
612      o Security: make RSA blinding default.
613      o Build: shared library support fixes.
614
615  Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
616
617      o Important security related bugfixes.
618
619  Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
620
621      o New configuration targets for Tandem OSS and A/UX.
622      o New OIDs for Microsoft attributes.
623      o Better handling of SSL session caching.
624      o Better comparison of distinguished names.
625      o Better handling of shared libraries in a mixed GNU/non-GNU environment.
626      o Support assembler code with Borland C.
627      o Fixes for length problems.
628      o Fixes for uninitialised variables.
629      o Fixes for memory leaks, some unusual crashes and some race conditions.
630      o Fixes for smaller building problems.
631      o Updates of manuals, FAQ and other instructive documents.
632
633  Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
634
635      o Important building fixes on Unix.
636
637  Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
638
639      o Various important bugfixes.
640
641  Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
642
643      o Important security related bugfixes.
644      o Various SSL/TLS library bugfixes.
645
646  Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
647
648      o Various SSL/TLS library bugfixes.
649      o Fix DH parameter generation for 'non-standard' generators.
650
651  Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
652
653      o Various SSL/TLS library bugfixes.
654      o BIGNUM library fixes.
655      o RSA OAEP and random number generation fixes.
656      o Object identifiers corrected and added.
657      o Add assembler BN routines for IA64.
658      o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
659        MIPS Linux; shared library support for Irix, HP-UX.
660      o Add crypto accelerator support for AEP, Baltimore SureWare,
661        Broadcom and Cryptographic Appliance's keyserver
662        [in 0.9.6c-engine release].
663
664  Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
665
666      o Security fix: PRNG improvements.
667      o Security fix: RSA OAEP check.
668      o Security fix: Reinsert and fix countermeasure to Bleichbacher's
669        attack.
670      o MIPS bug fix in BIGNUM.
671      o Bug fix in "openssl enc".
672      o Bug fix in X.509 printing routine.
673      o Bug fix in DSA verification routine and DSA S/MIME verification.
674      o Bug fix to make PRNG thread-safe.
675      o Bug fix in RAND_file_name().
676      o Bug fix in compatibility mode trust settings.
677      o Bug fix in blowfish EVP.
678      o Increase default size for BIO buffering filter.
679      o Compatibility fixes in some scripts.
680
681  Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
682
683      o Security fix: change behavior of OpenSSL to avoid using
684        environment variables when running as root.
685      o Security fix: check the result of RSA-CRT to reduce the
686        possibility of deducing the private key from an incorrectly
687        calculated signature.
688      o Security fix: prevent Bleichenbacher's DSA attack.
689      o Security fix: Zero the premaster secret after deriving the
690        master secret in DH ciphersuites.
691      o Reimplement SSL_peek(), which had various problems.
692      o Compatibility fix: the function des_encrypt() renamed to
693        des_encrypt1() to avoid clashes with some Unixen libc.
694      o Bug fixes for Win32, HP/UX and Irix.
695      o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
696        memory checking routines.
697      o Bug fixes for RSA operations in threaded environments.
698      o Bug fixes in misc. openssl applications.
699      o Remove a few potential memory leaks.
700      o Add tighter checks of BIGNUM routines.
701      o Shared library support has been reworked for generality.
702      o More documentation.
703      o New function BN_rand_range().
704      o Add "-rand" option to openssl s_client and s_server.
705
706  Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
707
708      o Some documentation for BIO and SSL libraries.
709      o Enhanced chain verification using key identifiers.
710      o New sign and verify options to 'dgst' application.
711      o Support for DER and PEM encoded messages in 'smime' application.
712      o New 'rsautl' application, low level RSA utility.
713      o MD4 now included.
714      o Bugfix for SSL rollback padding check.
715      o Support for external crypto devices [1].
716      o Enhanced EVP interface.
717
718    [1] The support for external crypto devices is currently a separate
719        distribution.  See the file README.ENGINE.
720
721  Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
722
723      o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8 
724      o Shared library support for HPUX and Solaris-gcc
725      o Support of Linux/IA64
726      o Assembler support for Mingw32
727      o New 'rand' application
728      o New way to check for existence of algorithms from scripts
729
730  Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
731
732      o S/MIME support in new 'smime' command
733      o Documentation for the OpenSSL command line application
734      o Automation of 'req' application
735      o Fixes to make s_client, s_server work under Windows
736      o Support for multiple fieldnames in SPKACs
737      o New SPKAC command line utilty and associated library functions
738      o Options to allow passwords to be obtained from various sources
739      o New public key PEM format and options to handle it
740      o Many other fixes and enhancements to command line utilities
741      o Usable certificate chain verification
742      o Certificate purpose checking
743      o Certificate trust settings
744      o Support of authority information access extension
745      o Extensions in certificate requests
746      o Simplified X509 name and attribute routines
747      o Initial (incomplete) support for international character sets
748      o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
749      o Read only memory BIOs and simplified creation function
750      o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
751        record; allow fragmentation and interleaving of handshake and other
752        data
753      o TLS/SSL code now "tolerates" MS SGC
754      o Work around for Netscape client certificate hang bug
755      o RSA_NULL option that removes RSA patent code but keeps other
756        RSA functionality
757      o Memory leak detection now allows applications to add extra information
758        via a per-thread stack
759      o PRNG robustness improved
760      o EGD support
761      o BIGNUM library bug fixes
762      o Faster DSA parameter generation
763      o Enhanced support for Alpha Linux
764      o Experimental MacOS support
765
766  Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
767
768      o Transparent support for PKCS#8 format private keys: these are used
769        by several software packages and are more secure than the standard
770        form
771      o PKCS#5 v2.0 implementation
772      o Password callbacks have a new void * argument for application data
773      o Avoid various memory leaks
774      o New pipe-like BIO that allows using the SSL library when actual I/O
775        must be handled by the application (BIO pair)
776
777  Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
778      o Lots of enhancements and cleanups to the Configuration mechanism
779      o RSA OEAP related fixes
780      o Added `openssl ca -revoke' option for revoking a certificate
781      o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
782      o Source tree cleanups: removed lots of obsolete files
783      o Thawte SXNet, certificate policies and CRL distribution points
784        extension support
785      o Preliminary (experimental) S/MIME support
786      o Support for ASN.1 UTF8String and VisibleString
787      o Full integration of PKCS#12 code
788      o Sparc assembler bignum implementation, optimized hash functions
789      o Option to disable selected ciphers
790
791  Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
792      o Fixed a security hole related to session resumption
793      o Fixed RSA encryption routines for the p < q case
794      o "ALL" in cipher lists now means "everything except NULL ciphers"
795      o Support for Triple-DES CBCM cipher
796      o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
797      o First support for new TLSv1 ciphers
798      o Added a few new BIOs (syslog BIO, reliable BIO)
799      o Extended support for DSA certificate/keys.
800      o Extended support for Certificate Signing Requests (CSR)
801      o Initial support for X.509v3 extensions
802      o Extended support for compression inside the SSL record layer
803      o Overhauled Win32 builds
804      o Cleanups and fixes to the Big Number (BN) library
805      o Support for ASN.1 GeneralizedTime
806      o Splitted ASN.1 SETs from SEQUENCEs
807      o ASN1 and PEM support for Netscape Certificate Sequences
808      o Overhauled Perl interface
809      o Lots of source tree cleanups.
810      o Lots of memory leak fixes.
811      o Lots of bug fixes.
812
813  Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
814      o Integration of the popular NO_RSA/NO_DSA patches
815      o Initial support for compression inside the SSL record layer
816      o Added BIO proxy and filtering functionality
817      o Extended Big Number (BN) library
818      o Added RIPE MD160 message digest
819      o Addeed support for RC2/64bit cipher
820      o Extended ASN.1 parser routines
821      o Adjustations of the source tree for CVS
822      o Support for various new platforms
823
824