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 0.9.8y and OpenSSL 0.9.8za [under development]:
10 o Fix for CVE-2014-0076
11 o Fix to TLS alert handling.
13 Major changes between OpenSSL 0.9.8x and OpenSSL 0.9.8y [5 Feb 2013]:
15 o Fix for SSL/TLS/DTLS CBC plaintext recovery attack CVE-2013-0169
16 o Fix OCSP bad key DoS attack CVE-2013-0166
18 Major changes between OpenSSL 0.9.8w and OpenSSL 0.9.8x [10 May 2012]:
20 o Fix DTLS record length checking bug CVE-2012-2333
22 Major changes between OpenSSL 0.9.8v and OpenSSL 0.9.8w [23 Apr 2012]:
24 o Fix for CVE-2012-2131 (corrected fix for 0.9.8 and CVE-2012-2110)
26 Major changes between OpenSSL 0.9.8u and OpenSSL 0.9.8v [19 Apr 2012]:
28 o Fix for ASN1 overflow bug CVE-2012-2110
30 Major changes between OpenSSL 0.9.8t and OpenSSL 0.9.8u [12 Mar 2012]:
32 o Fix for CMS/PKCS#7 MMA CVE-2012-0884
33 o Corrected fix for CVE-2011-4619
36 Major changes between OpenSSL 0.9.8s and OpenSSL 0.9.8t [18 Jan 2012]:
38 o Fix for DTLS DoS issue CVE-2012-0050
40 Major changes between OpenSSL 0.9.8r and OpenSSL 0.9.8s [4 Jan 2012]:
42 o Fix for DTLS plaintext recovery attack CVE-2011-4108
43 o Fix policy check double free error CVE-2011-4109
44 o Clear block padding bytes of SSL 3.0 records CVE-2011-4576
45 o Only allow one SGC handshake restart for SSL/TLS CVE-2011-4619
46 o Check for malformed RFC3779 data CVE-2011-4577
48 Major changes between OpenSSL 0.9.8q and OpenSSL 0.9.8r [8 Feb 2011]:
50 o Fix for security issue CVE-2011-0014
52 Major changes between OpenSSL 0.9.8p and OpenSSL 0.9.8q [2 Dec 2010]:
54 o Fix for security issue CVE-2010-4180
55 o Fix for CVE-2010-4252
57 Major changes between OpenSSL 0.9.8o and OpenSSL 0.9.8p [16 Nov 2010]:
59 o Fix for security issue CVE-2010-3864.
61 Major changes between OpenSSL 0.9.8n and OpenSSL 0.9.8o [1 Jun 2010]:
63 o Fix for security issue CVE-2010-0742.
65 o Recognise SHA2 certificates if only SSL algorithms added.
66 o Fix for no-rc4 compilation.
67 o Chil ENGINE unload workaround.
69 Major changes between OpenSSL 0.9.8m and OpenSSL 0.9.8n [24 Mar 2010]:
71 o CFB cipher definition fixes.
72 o Fix security issues CVE-2010-0740 and CVE-2010-0433.
74 Major changes between OpenSSL 0.9.8l and OpenSSL 0.9.8m [25 Feb 2010]:
76 o Cipher definition fixes.
77 o Workaround for slow RAND_poll() on some WIN32 versions.
78 o Remove MD2 from algorithm tables.
79 o SPKAC handling fixes.
80 o Support for RFC5746 TLS renegotiation extension.
81 o Compression memory leak fixed.
82 o Compression session resumption fixed.
83 o Ticket and SNI coexistence fixes.
84 o Many fixes to DTLS handling.
86 Major changes between OpenSSL 0.9.8k and OpenSSL 0.9.8l [5 Nov 2009]:
88 o Temporary work around for CVE-2009-3555: disable renegotiation.
90 Major changes between OpenSSL 0.9.8j and OpenSSL 0.9.8k [25 Mar 2009]:
92 o Fix various build issues.
93 o Fix security issues (CVE-2009-0590, CVE-2009-0591, CVE-2009-0789)
95 Major changes between OpenSSL 0.9.8i and OpenSSL 0.9.8j [7 Jan 2009]:
97 o Fix security issue (CVE-2008-5077)
98 o Merge FIPS 140-2 branch code.
100 Major changes between OpenSSL 0.9.8g and OpenSSL 0.9.8h [28 May 2008]:
102 o CryptoAPI ENGINE support.
103 o Various precautionary measures.
104 o Fix for bugs affecting certificate request creation.
105 o Support for local machine keyset attribute in PKCS#12 files.
107 Major changes between OpenSSL 0.9.8f and OpenSSL 0.9.8g [19 Oct 2007]:
109 o Backport of CMS functionality to 0.9.8.
110 o Fixes for bugs introduced with 0.9.8f.
112 Major changes between OpenSSL 0.9.8e and OpenSSL 0.9.8f [11 Oct 2007]:
114 o Add gcc 4.2 support.
115 o Add support for AES and SSE2 assembly lanugauge optimization
117 o Support for RFC4507bis and server name extensions if explicitly
118 selected at compile time.
120 o RFC4507bis support.
121 o TLS Extensions support.
123 Major changes between OpenSSL 0.9.8d and OpenSSL 0.9.8e [23 Feb 2007]:
125 o Various ciphersuite selection fixes.
128 Major changes between OpenSSL 0.9.8c and OpenSSL 0.9.8d [28 Sep 2006]:
130 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
131 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
132 o Changes to ciphersuite selection algorithm
134 Major changes between OpenSSL 0.9.8b and OpenSSL 0.9.8c [5 Sep 2006]:
136 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
137 o New cipher Camellia
139 Major changes between OpenSSL 0.9.8a and OpenSSL 0.9.8b [4 May 2006]:
141 o Cipher string fixes.
142 o Fixes for VC++ 2005.
143 o Updated ECC cipher suite support.
144 o New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free().
145 o Zlib compression usage fixes.
146 o Built in dynamic engine compilation support on Win32.
147 o Fixes auto dynamic engine loading in Win32.
149 Major changes between OpenSSL 0.9.8 and OpenSSL 0.9.8a [11 Oct 2005]:
151 o Fix potential SSL 2.0 rollback, CVE-2005-2969
152 o Extended Windows CE support
154 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.8 [5 Jul 2005]:
156 o Major work on the BIGNUM library for higher efficiency and to
157 make operations more streamlined and less contradictory. This
158 is the result of a major audit of the BIGNUM library.
159 o Addition of BIGNUM functions for fields GF(2^m) and NIST
160 curves, to support the Elliptic Crypto functions.
161 o Major work on Elliptic Crypto; ECDH and ECDSA added, including
162 the use through EVP, X509 and ENGINE.
163 o New ASN.1 mini-compiler that's usable through the OpenSSL
165 o Added support for ASN.1 indefinite length constructed encoding.
166 o New PKCS#12 'medium level' API to manipulate PKCS#12 files.
167 o Complete rework of shared library construction and linking
168 programs with shared or static libraries, through a separate
170 o Rework of the passing of parameters from one Makefile to another.
171 o Changed ENGINE framework to load dynamic engine modules
172 automatically from specifically given directories.
173 o New structure and ASN.1 functions for CertificatePair.
174 o Changed the ZLIB compression method to be stateful.
175 o Changed the key-generation and primality testing "progress"
176 mechanism to take a structure that contains the ticker
177 function and an argument.
178 o New engine module: GMP (performs private key exponentiation).
179 o New engine module: VIA PadLOck ACE extension in VIA C3
181 o Added support for IPv6 addresses in certificate extensions.
182 See RFC 1884, section 2.2.
183 o Added support for certificate policy mappings, policy
184 constraints and name constraints.
185 o Added support for multi-valued AVAs in the OpenSSL
187 o Added support for multiple certificates with the same subject
188 in the 'openssl ca' index file.
189 o Make it possible to create self-signed certificates using
190 'openssl ca -selfsign'.
191 o Make it possible to generate a serial number file with
192 'openssl ca -create_serial'.
193 o New binary search functions with extended functionality.
195 o New STORE structure and library to provide an interface to all
196 sorts of data repositories. Supports storage of public and
197 private keys, certificates, CRLs, numbers and arbitrary blobs.
198 This library is unfortunately unfinished and unused withing
200 o New control functions for the error stack.
201 o Changed the PKCS#7 library to support one-pass S/MIME
203 o Added the possibility to compile without old deprecated
204 functionality with the OPENSSL_NO_DEPRECATED macro or the
205 'no-deprecated' argument to the config and Configure scripts.
206 o Constification of all ASN.1 conversion functions, and other
208 o Improved platform support for PowerPC.
209 o New FIPS 180-2 algorithms (SHA-224, -256, -384 and -512).
210 o New X509_VERIFY_PARAM structure to support parametrisation
211 of X.509 path validation.
212 o Major overhaul of RC4 performance on Intel P4, IA-64 and
214 o Changed the Configure script to have some algorithms disabled
215 by default. Those can be explicitely enabled with the new
216 argument form 'enable-xxx'.
217 o Change the default digest in 'openssl' commands from MD5 to
219 o Added support for DTLS.
220 o New BIGNUM blinding.
221 o Added support for the RSA-PSS encryption scheme
222 o Added support for the RSA X.931 padding.
223 o Added support for BSD sockets on NetWare.
224 o Added support for files larger than 2GB.
225 o Added initial support for Win64.
226 o Added alternate pkg-config files.
228 Major changes between OpenSSL 0.9.7l and OpenSSL 0.9.7m [23 Feb 2007]:
230 o FIPS 1.1.1 module linking.
231 o Various ciphersuite selection fixes.
233 Major changes between OpenSSL 0.9.7k and OpenSSL 0.9.7l [28 Sep 2006]:
235 o Introduce limits to prevent malicious key DoS (CVE-2006-2940)
236 o Fix security issues (CVE-2006-2937, CVE-2006-3737, CVE-2006-4343)
238 Major changes between OpenSSL 0.9.7j and OpenSSL 0.9.7k [5 Sep 2006]:
240 o Fix Daniel Bleichenbacher forged signature attack, CVE-2006-4339
242 Major changes between OpenSSL 0.9.7i and OpenSSL 0.9.7j [4 May 2006]:
244 o Visual C++ 2005 fixes.
245 o Update Windows build system for FIPS.
247 Major changes between OpenSSL 0.9.7h and OpenSSL 0.9.7i [14 Oct 2005]:
249 o Give EVP_MAX_MD_SIZE it's old value, except for a FIPS build.
251 Major changes between OpenSSL 0.9.7g and OpenSSL 0.9.7h [11 Oct 2005]:
253 o Fix SSL 2.0 Rollback, CVE-2005-2969
254 o Allow use of fixed-length exponent on DSA signing
255 o Default fixed-window RSA, DSA, DH private-key operations
257 Major changes between OpenSSL 0.9.7f and OpenSSL 0.9.7g [11 Apr 2005]:
259 o More compilation issues fixed.
260 o Adaptation to more modern Kerberos API.
261 o Enhanced or corrected configuration for Solaris64, Mingw and Cygwin.
262 o Enhanced x86_64 assembler BIGNUM module.
263 o More constification.
264 o Added processing of proxy certificates (RFC 3820).
266 Major changes between OpenSSL 0.9.7e and OpenSSL 0.9.7f [22 Mar 2005]:
268 o Several compilation issues fixed.
269 o Many memory allocation failure checks added.
270 o Improved comparison of X509 Name type.
271 o Mandatory basic checks on certificates.
272 o Performance improvements.
274 Major changes between OpenSSL 0.9.7d and OpenSSL 0.9.7e [25 Oct 2004]:
276 o Fix race condition in CRL checking code.
277 o Fixes to PKCS#7 (S/MIME) code.
279 Major changes between OpenSSL 0.9.7c and OpenSSL 0.9.7d [17 Mar 2004]:
281 o Security: Fix Kerberos ciphersuite SSL/TLS handshaking bug
282 o Security: Fix null-pointer assignment in do_change_cipher_spec()
283 o Allow multiple active certificates with same subject in CA index
284 o Multiple X509 verification fixes
285 o Speed up HMAC and other operations
287 Major changes between OpenSSL 0.9.7b and OpenSSL 0.9.7c [30 Sep 2003]:
289 o Security: fix various ASN1 parsing bugs.
290 o New -ignore_err option to OCSP utility.
291 o Various interop and bug fixes in S/MIME code.
292 o SSL/TLS protocol fix for unrequested client certificates.
294 Major changes between OpenSSL 0.9.7a and OpenSSL 0.9.7b [10 Apr 2003]:
296 o Security: counter the Klima-Pokorny-Rosa extension of
297 Bleichbacher's attack
298 o Security: make RSA blinding default.
299 o Configuration: Irix fixes, AIX fixes, better mingw support.
300 o Support for new platforms: linux-ia64-ecc.
301 o Build: shared library support fixes.
302 o ASN.1: treat domainComponent correctly.
303 o Documentation: fixes and additions.
305 Major changes between OpenSSL 0.9.7 and OpenSSL 0.9.7a [19 Feb 2003]:
307 o Security: Important security related bugfixes.
308 o Enhanced compatibility with MIT Kerberos.
309 o Can be built without the ENGINE framework.
310 o IA32 assembler enhancements.
311 o Support for new platforms: FreeBSD/IA64 and FreeBSD/Sparc64.
312 o Configuration: the no-err option now works properly.
313 o SSL/TLS: now handles manual certificate chain building.
314 o SSL/TLS: certain session ID malfunctions corrected.
316 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.7 [30 Dec 2002]:
318 o New library section OCSP.
319 o Complete rewrite of ASN1 code.
320 o CRL checking in verify code and openssl utility.
321 o Extension copying in 'ca' utility.
322 o Flexible display options in 'ca' utility.
323 o Provisional support for international characters with UTF8.
324 o Support for external crypto devices ('engine') is no longer
325 a separate distribution.
326 o New elliptic curve library section.
327 o New AES (Rijndael) library section.
328 o Support for new platforms: Windows CE, Tandem OSS, A/UX, AIX 64-bit,
329 Linux x86_64, Linux 64-bit on Sparc v9
330 o Extended support for some platforms: VxWorks
331 o Enhanced support for shared libraries.
332 o Now only builds PIC code when shared library support is requested.
333 o Support for pkg-config.
334 o Lots of new manuals.
335 o Makes symbolic links to or copies of manuals to cover all described
337 o Change DES API to clean up the namespace (some applications link also
338 against libdes providing similar functions having the same name).
339 Provide macros for backward compatibility (will be removed in the
341 o Unify handling of cryptographic algorithms (software and engine)
342 to be available via EVP routines for asymmetric and symmetric ciphers.
343 o NCONF: new configuration handling routines.
344 o Change API to use more 'const' modifiers to improve error checking
346 o Finally remove references to RSAref.
347 o Reworked parts of the BIGNUM code.
348 o Support for new engines: Broadcom ubsec, Accelerated Encryption
349 Processing, IBM 4758.
350 o A few new engines added in the demos area.
351 o Extended and corrected OID (object identifier) table.
352 o PRNG: query at more locations for a random device, automatic query for
353 EGD style random sources at several locations.
354 o SSL/TLS: allow optional cipher choice according to server's preference.
355 o SSL/TLS: allow server to explicitly set new session ids.
356 o SSL/TLS: support Kerberos cipher suites (RFC2712).
357 Only supports MIT Kerberos for now.
358 o SSL/TLS: allow more precise control of renegotiations and sessions.
359 o SSL/TLS: add callback to retrieve SSL/TLS messages.
360 o SSL/TLS: support AES cipher suites (RFC3268).
362 Major changes between OpenSSL 0.9.6j and OpenSSL 0.9.6k [30 Sep 2003]:
364 o Security: fix various ASN1 parsing bugs.
365 o SSL/TLS protocol fix for unrequested client certificates.
367 Major changes between OpenSSL 0.9.6i and OpenSSL 0.9.6j [10 Apr 2003]:
369 o Security: counter the Klima-Pokorny-Rosa extension of
370 Bleichbacher's attack
371 o Security: make RSA blinding default.
372 o Build: shared library support fixes.
374 Major changes between OpenSSL 0.9.6h and OpenSSL 0.9.6i [19 Feb 2003]:
376 o Important security related bugfixes.
378 Major changes between OpenSSL 0.9.6g and OpenSSL 0.9.6h [5 Dec 2002]:
380 o New configuration targets for Tandem OSS and A/UX.
381 o New OIDs for Microsoft attributes.
382 o Better handling of SSL session caching.
383 o Better comparison of distinguished names.
384 o Better handling of shared libraries in a mixed GNU/non-GNU environment.
385 o Support assembler code with Borland C.
386 o Fixes for length problems.
387 o Fixes for uninitialised variables.
388 o Fixes for memory leaks, some unusual crashes and some race conditions.
389 o Fixes for smaller building problems.
390 o Updates of manuals, FAQ and other instructive documents.
392 Major changes between OpenSSL 0.9.6f and OpenSSL 0.9.6g [9 Aug 2002]:
394 o Important building fixes on Unix.
396 Major changes between OpenSSL 0.9.6e and OpenSSL 0.9.6f [8 Aug 2002]:
398 o Various important bugfixes.
400 Major changes between OpenSSL 0.9.6d and OpenSSL 0.9.6e [30 Jul 2002]:
402 o Important security related bugfixes.
403 o Various SSL/TLS library bugfixes.
405 Major changes between OpenSSL 0.9.6c and OpenSSL 0.9.6d [9 May 2002]:
407 o Various SSL/TLS library bugfixes.
408 o Fix DH parameter generation for 'non-standard' generators.
410 Major changes between OpenSSL 0.9.6b and OpenSSL 0.9.6c [21 Dec 2001]:
412 o Various SSL/TLS library bugfixes.
413 o BIGNUM library fixes.
414 o RSA OAEP and random number generation fixes.
415 o Object identifiers corrected and added.
416 o Add assembler BN routines for IA64.
417 o Add support for OS/390 Unix, UnixWare with gcc, OpenUNIX 8,
418 MIPS Linux; shared library support for Irix, HP-UX.
419 o Add crypto accelerator support for AEP, Baltimore SureWare,
420 Broadcom and Cryptographic Appliance's keyserver
421 [in 0.9.6c-engine release].
423 Major changes between OpenSSL 0.9.6a and OpenSSL 0.9.6b [9 Jul 2001]:
425 o Security fix: PRNG improvements.
426 o Security fix: RSA OAEP check.
427 o Security fix: Reinsert and fix countermeasure to Bleichbacher's
429 o MIPS bug fix in BIGNUM.
430 o Bug fix in "openssl enc".
431 o Bug fix in X.509 printing routine.
432 o Bug fix in DSA verification routine and DSA S/MIME verification.
433 o Bug fix to make PRNG thread-safe.
434 o Bug fix in RAND_file_name().
435 o Bug fix in compatibility mode trust settings.
436 o Bug fix in blowfish EVP.
437 o Increase default size for BIO buffering filter.
438 o Compatibility fixes in some scripts.
440 Major changes between OpenSSL 0.9.6 and OpenSSL 0.9.6a [5 Apr 2001]:
442 o Security fix: change behavior of OpenSSL to avoid using
443 environment variables when running as root.
444 o Security fix: check the result of RSA-CRT to reduce the
445 possibility of deducing the private key from an incorrectly
446 calculated signature.
447 o Security fix: prevent Bleichenbacher's DSA attack.
448 o Security fix: Zero the premaster secret after deriving the
449 master secret in DH ciphersuites.
450 o Reimplement SSL_peek(), which had various problems.
451 o Compatibility fix: the function des_encrypt() renamed to
452 des_encrypt1() to avoid clashes with some Unixen libc.
453 o Bug fixes for Win32, HP/UX and Irix.
454 o Bug fixes in BIGNUM, SSL, PKCS#7, PKCS#12, X.509, CONF and
455 memory checking routines.
456 o Bug fixes for RSA operations in threaded environments.
457 o Bug fixes in misc. openssl applications.
458 o Remove a few potential memory leaks.
459 o Add tighter checks of BIGNUM routines.
460 o Shared library support has been reworked for generality.
461 o More documentation.
462 o New function BN_rand_range().
463 o Add "-rand" option to openssl s_client and s_server.
465 Major changes between OpenSSL 0.9.5a and OpenSSL 0.9.6 [10 Oct 2000]:
467 o Some documentation for BIO and SSL libraries.
468 o Enhanced chain verification using key identifiers.
469 o New sign and verify options to 'dgst' application.
470 o Support for DER and PEM encoded messages in 'smime' application.
471 o New 'rsautl' application, low level RSA utility.
473 o Bugfix for SSL rollback padding check.
474 o Support for external crypto devices [1].
475 o Enhanced EVP interface.
477 [1] The support for external crypto devices is currently a separate
478 distribution. See the file README.ENGINE.
480 Major changes between OpenSSL 0.9.5 and OpenSSL 0.9.5a [1 Apr 2000]:
482 o Bug fixes for Win32, SuSE Linux, NeXTSTEP and FreeBSD 2.2.8
483 o Shared library support for HPUX and Solaris-gcc
484 o Support of Linux/IA64
485 o Assembler support for Mingw32
486 o New 'rand' application
487 o New way to check for existence of algorithms from scripts
489 Major changes between OpenSSL 0.9.4 and OpenSSL 0.9.5 [25 May 2000]:
491 o S/MIME support in new 'smime' command
492 o Documentation for the OpenSSL command line application
493 o Automation of 'req' application
494 o Fixes to make s_client, s_server work under Windows
495 o Support for multiple fieldnames in SPKACs
496 o New SPKAC command line utilty and associated library functions
497 o Options to allow passwords to be obtained from various sources
498 o New public key PEM format and options to handle it
499 o Many other fixes and enhancements to command line utilities
500 o Usable certificate chain verification
501 o Certificate purpose checking
502 o Certificate trust settings
503 o Support of authority information access extension
504 o Extensions in certificate requests
505 o Simplified X509 name and attribute routines
506 o Initial (incomplete) support for international character sets
507 o New DH_METHOD, DSA_METHOD and enhanced RSA_METHOD
508 o Read only memory BIOs and simplified creation function
509 o TLS/SSL protocol bugfixes: Accept TLS 'client hello' in SSL 3.0
510 record; allow fragmentation and interleaving of handshake and other
512 o TLS/SSL code now "tolerates" MS SGC
513 o Work around for Netscape client certificate hang bug
514 o RSA_NULL option that removes RSA patent code but keeps other
516 o Memory leak detection now allows applications to add extra information
517 via a per-thread stack
518 o PRNG robustness improved
520 o BIGNUM library bug fixes
521 o Faster DSA parameter generation
522 o Enhanced support for Alpha Linux
523 o Experimental MacOS support
525 Major changes between OpenSSL 0.9.3 and OpenSSL 0.9.4 [9 Aug 1999]:
527 o Transparent support for PKCS#8 format private keys: these are used
528 by several software packages and are more secure than the standard
530 o PKCS#5 v2.0 implementation
531 o Password callbacks have a new void * argument for application data
532 o Avoid various memory leaks
533 o New pipe-like BIO that allows using the SSL library when actual I/O
534 must be handled by the application (BIO pair)
536 Major changes between OpenSSL 0.9.2b and OpenSSL 0.9.3 [24 May 1999]:
537 o Lots of enhancements and cleanups to the Configuration mechanism
538 o RSA OEAP related fixes
539 o Added `openssl ca -revoke' option for revoking a certificate
540 o Source cleanups: const correctness, type-safe stacks and ASN.1 SETs
541 o Source tree cleanups: removed lots of obsolete files
542 o Thawte SXNet, certificate policies and CRL distribution points
544 o Preliminary (experimental) S/MIME support
545 o Support for ASN.1 UTF8String and VisibleString
546 o Full integration of PKCS#12 code
547 o Sparc assembler bignum implementation, optimized hash functions
548 o Option to disable selected ciphers
550 Major changes between OpenSSL 0.9.1c and OpenSSL 0.9.2b [22 Mar 1999]:
551 o Fixed a security hole related to session resumption
552 o Fixed RSA encryption routines for the p < q case
553 o "ALL" in cipher lists now means "everything except NULL ciphers"
554 o Support for Triple-DES CBCM cipher
555 o Support of Optimal Asymmetric Encryption Padding (OAEP) for RSA
556 o First support for new TLSv1 ciphers
557 o Added a few new BIOs (syslog BIO, reliable BIO)
558 o Extended support for DSA certificate/keys.
559 o Extended support for Certificate Signing Requests (CSR)
560 o Initial support for X.509v3 extensions
561 o Extended support for compression inside the SSL record layer
562 o Overhauled Win32 builds
563 o Cleanups and fixes to the Big Number (BN) library
564 o Support for ASN.1 GeneralizedTime
565 o Splitted ASN.1 SETs from SEQUENCEs
566 o ASN1 and PEM support for Netscape Certificate Sequences
567 o Overhauled Perl interface
568 o Lots of source tree cleanups.
569 o Lots of memory leak fixes.
572 Major changes between SSLeay 0.9.0b and OpenSSL 0.9.1c [23 Dec 1998]:
573 o Integration of the popular NO_RSA/NO_DSA patches
574 o Initial support for compression inside the SSL record layer
575 o Added BIO proxy and filtering functionality
576 o Extended Big Number (BN) library
577 o Added RIPE MD160 message digest
578 o Addeed support for RC2/64bit cipher
579 o Extended ASN.1 parser routines
580 o Adjustations of the source tree for CVS
581 o Support for various new platforms