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Blog on OpenSSL Library
12/19/25
ENGINE code removed from the OpenSSL Library
OpenSSL 4.0, to be released in April 2026, is the first [major release](https://openssl-library.org/
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ENGINE code removed from the OpenSSL Library
OpenSSL 4.0, to be released in April 2026, is the first [major release](https://openssl-library.org/
12/19/25
Blog on OpenSSL Library
12/19/25
Vote now for the Foundation Business Advisory Committee
The voting from the Foundation BAC has been [extended through December 21](https://openssl-library.
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Vote now for the Foundation Business Advisory Committee
The voting from the Foundation BAC has been [extended through December 21](https://openssl-library.
12/19/25
Turritopsis Dohrnii Teo En Ming
12/5/25
ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32)) and OpenSSL 3.6.0
Subject: ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32))
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ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32)) and OpenSSL 3.6.0
Subject: ArcServe UDP 10.3 backup software utilizes both Apache HTTP Server (Apache/2.4.65 (Win32))
12/5/25
Blog on OpenSSL Library
12/3/25
OpenSSL Library is moving to clang-format
The OpenSSL Library would like to modernise and streamline development processes, especially to
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OpenSSL Library is moving to clang-format
The OpenSSL Library would like to modernise and streamline development processes, especially to
12/3/25
Blog on OpenSSL Library
11/25/25
OpenSSL 3.2 End Of Life
OpenSSL 3.2 series has reached its End of Life (EOL). As such it will no longer receive publicly
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OpenSSL 3.2 End Of Life
OpenSSL 3.2 series has reached its End of Life (EOL). As such it will no longer receive publicly
11/25/25
Blog on OpenSSL Library
10/27/25
Contributors to the OpenSSL Library (September 2025)
September has come and gone, so it's past time to recognize new contributors to the OpenSSL
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Contributors to the OpenSSL Library (September 2025)
September has come and gone, so it's past time to recognize new contributors to the OpenSSL
10/27/25
madhu bajpai
2
10/27/25
Facing issue with i2d_CMS_ContentInfo and d2i_CMS_ContentInfo in 3.x.x
Any inputs/suggestions from anyone? On 21 Oct 2025, at 3:57 PM, madhu bajpai <madhu.bajpai@rimus-
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Facing issue with i2d_CMS_ContentInfo and d2i_CMS_ContentInfo in 3.x.x
Any inputs/suggestions from anyone? On 21 Oct 2025, at 3:57 PM, madhu bajpai <madhu.bajpai@rimus-
10/27/25
Blog on OpenSSL Library
10/24/25
The OpenSSL Corporation and the OpenSSL Foundation Celebrate the Success of the Inaugural OpenSSL Conference in Prague
 The [**OpenSSL
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The OpenSSL Corporation and the OpenSSL Foundation Celebrate the Success of the Inaugural OpenSSL Conference in Prague
 The [**OpenSSL
10/24/25
Leon Timmermans
10/24/25
Announcing Crypt::OpenSSL3, a new Perl binding for OpenSSL
Hello all, I am delighted to announce the first release of Crypt::OpenSSL3, a new Perl binding for
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Announcing Crypt::OpenSSL3, a new Perl binding for OpenSSL
Hello all, I am delighted to announce the first release of Crypt::OpenSSL3, a new Perl binding for
10/24/25
Sands, Daniel N.
,
Tomas Mraz
3
10/22/25
In-place decryption error
It would appear that your updated version uses overlapping buffers, doesn't it? For the first
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In-place decryption error
It would appear that your updated version uses overlapping buffers, doesn't it? For the first
10/22/25
Prasad, PCRaghavendra
, …
Marian Beermann
9
10/21/25
OpenSSL 3.3.3 Security Vulnerability
> OpenSSL 3.0.0 through 3.3.2 on the PowerPC architecture is vulnerable to a Minerva attack, Are
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OpenSSL 3.3.3 Security Vulnerability
> OpenSSL 3.0.0 through 3.3.2 on the PowerPC architecture is vulnerable to a Minerva attack, Are
10/21/25
Blog on OpenSSL Library
10/19/25
Foundation Business Advisory Committee election
Believe it or not, it's time to start the election process for the 2026 Foundation Business
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Foundation Business Advisory Committee election
Believe it or not, it's time to start the election process for the 2026 Foundation Business
10/19/25
Blog on OpenSSL Library
10/19/25
Lightship Security and the OpenSSL Corporation Submit OpenSSL 3.5.4 for FIPS 140-3 Validation
 [**Lightship
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Lightship Security and the OpenSSL Corporation Submit OpenSSL 3.5.4 for FIPS 140-3 Validation
 [**Lightship
10/19/25
Michał Trojnara
10/18/25
stunnel 5.76 released
Dear Users, I have released version 5.76 of stunnel. ### Version 5.76, 2025.10.18, urgency: MEDIUM *
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stunnel 5.76 released
Dear Users, I have released version 5.76 of stunnel. ### Version 5.76, 2025.10.18, urgency: MEDIUM *
10/18/25
Mad
,
Matt Caswell
4
10/16/25
Creating a PKCS7 detached signature with providers
Hello, I found the source of the problem and the solution, although it's not very elegant and
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Creating a PKCS7 detached signature with providers
Hello, I found the source of the problem and the solution, although it's not very elegant and
10/16/25
Ladd, Watson
10/8/25
Setting module path in openssl.conf config files
Dear OpenSSL users, I've read the manpage a few times, and I'm very confused about whether or
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Setting module path in openssl.conf config files
Dear OpenSSL users, I've read the manpage a few times, and I'm very confused about whether or
10/8/25
ama...@xtec.com
10/6/25
How to create empty certs-only CMS format p7c file
Hi everybody, I'm trying to create a p7c file for the AIA extension of an issuing CA which issuer
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How to create empty certs-only CMS format p7c file
Hi everybody, I'm trying to create a p7c file for the AIA extension of an issuing CA which issuer
10/6/25
共通基盤ＳＳＬ［業務ＩＤ］ / COMMONSSL，GYOUMU
10/5/25
Build error with OpenSSL 3.5 on Visual Studio 2012 (32-bit)
Hello, I am trying to build OpenSSL 3.5 with Visual Studio 2012 (32-bit), but the build fails due to
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Build error with OpenSSL 3.5 on Visual Studio 2012 (32-bit)
Hello, I am trying to build OpenSSL 3.5 with Visual Studio 2012 (32-bit), but the build fails due to
10/5/25
Sands, Daniel N.
, …
Matt Caswell
7
10/2/25
Transferring hash state
The docs state this: EVP_DecryptInit_ex2(), EVP_DecryptInit_ex(), EVP_DecryptUpdate() and
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Transferring hash state
The docs state this: EVP_DecryptInit_ex2(), EVP_DecryptInit_ex(), EVP_DecryptUpdate() and
10/2/25
Blog on OpenSSL Library
10/1/25
Release Announcement for OpenSSL 3.6.0
The final release of OpenSSL 3.6 is now live. We would like to thank all those who contributed to the
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Release Announcement for OpenSSL 3.6.0
The final release of OpenSSL 3.6 is now live. We would like to thank all those who contributed to the
10/1/25
Blog on OpenSSL Library
10/1/25
OpenSSL Release Announcement for 3.5.4, 3.4.3, 3.3.5, 3.2.6, 3.0.18, 1.1.1zd and 1.0.2zm
Release Announcement for OpenSSL Library **3.5.4** , **3.4.3** , **3.3.5** , **3.2.6** , **3.0.18** ,
unread,
OpenSSL Release Announcement for 3.5.4, 3.4.3, 3.3.5, 3.2.6, 3.0.18, 1.1.1zd and 1.0.2zm
Release Announcement for OpenSSL Library **3.5.4** , **3.4.3** , **3.3.5** , **3.2.6** , **3.0.18** ,
10/1/25
Tomas Mraz
9/30/25
OpenSSL Security Advisory
OpenSSL Security Advisory [30th September 2025] =============================================== Out-
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OpenSSL Security Advisory
OpenSSL Security Advisory [30th September 2025] =============================================== Out-
9/30/25
gustafn
, …
Matt Caswell
7
9/28/25
how to determine peeraddr from quic connection
i have implemented this in my instance, and it works fine for my server. It needed some small tweaks
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how to determine peeraddr from quic connection
i have implemented this in my instance, and it works fine for my server. It needed some small tweaks
9/28/25
Dan Mahoney
, …
Jochen Bern
7
9/26/25
Is there a way to tell s_client to just "send a command" and quit?
On 26.09.25 10:53, Viktor Dukhovni wrote: > On Fri, Sep 26, 2025 at 09:36:24AM +0200, Jochen Bern
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Is there a way to tell s_client to just "send a command" and quit?
On 26.09.25 10:53, Viktor Dukhovni wrote: > On Fri, Sep 26, 2025 at 09:36:24AM +0200, Jochen Bern
9/26/25
Tomas Mraz
, …
Martin Bonner
5
9/24/25
New OpenSSL Releases
> Not really. The fixes for the security issues that will be released > with these upcoming
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New OpenSSL Releases
> Not really. The fixes for the security issues that will be released > with these upcoming
9/24/25
Ian Pilcher
,
Viktor Dukhovni
5
9/24/25
s_client SECLEVEL different in config file vs command line?
On Wed, Sep 24, 2025 at 02:45:43PM +1000, Viktor Dukhovni wrote: > [ssl_module] >
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s_client SECLEVEL different in config file vs command line?
On Wed, Sep 24, 2025 at 02:45:43PM +1000, Viktor Dukhovni wrote: > [ssl_module] >
9/24/25
Samiya Khanum
,
Michael Wojcik
3
9/22/25
Seeing issue with BIO_free call
> From: 'Samiya Khanum' via openssl-users <openss...@openssl.org> > Sent:
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Seeing issue with BIO_free call
> From: 'Samiya Khanum' via openssl-users <openss...@openssl.org> > Sent:
9/22/25
Blog on OpenSSL Library
9/18/25
OpenSSL 3.6 Beta Release Announcement
The [OpenSSL Project](https://openssl.org) is pleased to announce that [OpenSSL 3.6 Beta1](https://
unread,
OpenSSL 3.6 Beta Release Announcement
The [OpenSSL Project](https://openssl.org) is pleased to announce that [OpenSSL 3.6 Beta1](https://
9/18/25
Blog on OpenSSL Library
9/18/25
Contributors to the OpenSSL Library (August 2025)
Among the [91 PRs](https://github.com/openssl/openssl/pulls?q=is%3Apr+label%3A%22approval%3A+ready+to
unread,
Contributors to the OpenSSL Library (August 2025)
Among the [91 PRs](https://github.com/openssl/openssl/pulls?q=is%3Apr+label%3A%22approval%3A+ready+to
9/18/25
Blog on OpenSSL Library
9/18/25
Openssl 3.5.3 Release Announcement
Release Announcement for [OpenSSL Library **3.5.3**](https://github.com/openssl/openssl/releases/tag/
unread,
Openssl 3.5.3 Release Announcement
Release Announcement for [OpenSSL Library **3.5.3**](https://github.com/openssl/openssl/releases/tag/
9/18/25
