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chore: release 1.15.2
Update version files, changelog, release notes, and contributors for the 1.15.2 release.
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‎CHANGELOG‎

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This is the changelog file for the POCO C++ Libraries.
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Release 1.15.2 (2026-04-16)
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===========================
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Summary of Changes:
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This release focuses on security hardening and bug fixes. Key changes include
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TLS 1.3 support for NetSSL_Win, building Crypto and NetSSL with
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OPENSSL_NO_DEPRECATED, removal of deprecated non-EVP OpenSSL code (breaking
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change), significant multipart parsing performance improvements, Prometheus
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thread/CPU metrics, GNU Hurd platform support, and numerous bug fixes across
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networking, cryptography, and data handling. All bundled third-party libraries
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have been updated to their latest releases.
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Breaking Changes:
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- GH #4602 OpenSSL: Remove deprecated non EVP code
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Security Fixes:
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- PR #5306 chore(dependencies): refresh bundled third-party libraries
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- GH #5296 Crypto and NetSSL_OpenSSL should build with OPENSSL_NO_DEPRECATED defined
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- GH #5278 NetSSL_Win does not support TLS 1.3
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Bundled Third-Party Library Upgrades:
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- libpng 1.6.55 -> 1.6.57 - security fixes
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- libharu (hpdf) 2.4.5 -> 2.4.6 - security (TTF fixes) + memory alloc / Windows build fixes
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- SQLite 3.51.2 -> 3.53.0 - WAL-reset database corruption fix, query planner improvements
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- Quill 11.0.2 -> 11.1.0 - thread-local context fix, nullptr checks, backend poll hooks
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Features and Enhancements:
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- PR #5305 enh(Foundation): auto-disable FastLogger on unsupported platforms
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- PR #5303 enh: bump macOS deployment target to 15.0 (Sequoia)
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- PR #5300 chore(PropertyConfigurationFile): use '=' as default separator
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- PR #5298 Foundation: Fix sign-compare warnings in StreamConverter
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- PR #5294 Link with atomic library on architectures that need it
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- GH #5292 enh: reduce binary size growth since 1.14.2
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- GH #5291 Component Install Support
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- PR #5286 fix(cmake,DNSSD): build fixes and cmake dependency resolution
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- GH #5280 Remove WinDriver.cpp files
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- GH #5275 Prometheus: add memory and thread metrics
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- GH #5266 PropertyFileConfiguration: add include file capability
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- GH #5250 Poco::Net::Context::addCertificateAuthority() could include a call to SSL_CTX_load_verify_locations()
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- GH #4846 NetSSL/Crypto: Replace deprecated OpenSSL features
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Bug Fixes and Improvements:
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- PR #5309 fix(Redis,XML,CppParser): replace dynamic_cast with static_cast for hidden visibility
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- GH #5308 Net: SocketProactor reports success on TCP write after non-blocking connect refusal
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- PR #5304 fix(MongoDB): suppress false topology change notifications on heartbeat
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- PR #5293 Port library to GNU Hurd
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- GH #5288 Fuzzing Issue in MailMessage
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- GH #5287 Fuzzing Issue in DateTime
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- PR #5284 fix(Redis): use shared_ptr for NotificationCenter, harden AsyncNotificationCenter::stop()
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- PR #5283 fix(ApacheConnector,Foundation): fix compile warnings with GCC 15
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- GH #5269 Pipe close deadlocks on
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- PR #5264 fix(Data): Robust date/time parsing in SQLite/PostgreSQL extractor
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- GH #5263 X509Certificate validFrom method throws exception for timestamps ending with Z
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- GH #4883 SecureSocketImpl::shutdown() regression since 1.14.0
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- GH #4772 InvalidCertificateHandler onInvalidCertificate wrong exception
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- GH #4118 Poco Multipart parsing is 10x slower than its Boost/beat or restinio equivalent
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- GH #1097 Process::isRunning returns true for defunct tagged process
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Release 1.15.1 (2026-03-24)
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===========================
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‎CONTRIBUTORS‎

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feihongmeilian <281006617@qq.com>
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Petr Jirouš
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Uroš Srečković
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Bilel Bouali
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Petter Reinholdtsen

‎DLLVersion.rc‎

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#include "winres.h"
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#define POCO_VERSION 1,15,1,0
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#define POCO_VERSION_STR "1.15.1"
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#define POCO_VERSION 1,15,2,0
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#define POCO_VERSION_STR "1.15.2"
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VS_VERSION_INFO VERSIONINFO
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FILEVERSION POCO_VERSION

‎Foundation/include/Poco/Version.h‎

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// Bx: beta releases
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//
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#define POCO_VERSION 0x010F0100
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#define POCO_VERSION 0x010F0200
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#endif // Foundation_Version_INCLUDED

‎README.md‎

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You can install Poco libraries from [Conan Center](https://conan.io/center.html):
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```
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$ conan install --requires=poco/1.15.1
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$ conan install --requires=poco/1.15.2
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```
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Or, you can download Poco recipe and build locally:
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```
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$ conan install --requires=poco/1.15.1 --build=poco
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$ conan install --requires=poco/1.15.2 --build=poco
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```
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The Poco recipe and packages in Conan Center are kept up to date by Conan team members and community contributors.

‎VERSION‎

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1.15.1
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1.15.2

‎doc/99100-ReleaseNotes.page‎

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POCO C++ Libraries Release Notes
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AAAIntroduction
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!!!Release 1.15.2
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!!Summary of Changes
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This release focuses on security hardening and bug fixes. Key changes include
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TLS 1.3 support for NetSSL_Win, building Crypto and NetSSL with
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OPENSSL_NO_DEPRECATED, removal of deprecated non-EVP OpenSSL code (breaking
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change), significant multipart parsing performance improvements, Prometheus
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thread/CPU metrics, GNU Hurd platform support, and numerous bug fixes across
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networking, cryptography, and data handling. All bundled third-party libraries
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have been updated to their latest releases.
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!!Breaking Changes
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- GH #4602 OpenSSL: Remove deprecated non EVP code
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!!Security Fixes
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- PR #5306 chore(dependencies): refresh bundled third-party libraries
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- GH #5296 Crypto and NetSSL_OpenSSL should build with OPENSSL_NO_DEPRECATED defined
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- GH #5278 NetSSL_Win does not support TLS 1.3
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Bundled Third-Party Library Upgrades:
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- libpng 1.6.55 -> 1.6.57 - security fixes
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- libharu (hpdf) 2.4.5 -> 2.4.6 - security (TTF fixes) + memory alloc / Windows build fixes
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- SQLite 3.51.2 -> 3.53.0 - WAL-reset database corruption fix, query planner improvements
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- Quill 11.0.2 -> 11.1.0 - thread-local context fix, nullptr checks, backend poll hooks
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!!Features and Enhancements
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- PR #5305 enh(Foundation): auto-disable FastLogger on unsupported platforms
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- PR #5303 enh: bump macOS deployment target to 15.0 (Sequoia)
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- PR #5300 chore(PropertyConfigurationFile): use '=' as default separator
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- PR #5298 Foundation: Fix sign-compare warnings in StreamConverter
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- PR #5294 Link with atomic library on architectures that need it
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- GH #5292 enh: reduce binary size growth since 1.14.2
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- GH #5291 Component Install Support
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- PR #5286 fix(cmake,DNSSD): build fixes and cmake dependency resolution
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- GH #5280 Remove WinDriver.cpp files
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- GH #5275 Prometheus: add memory and thread metrics
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- GH #5266 PropertyFileConfiguration: add include file capability
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- GH #5250 Poco::Net::Context::addCertificateAuthority() could include a call to SSL_CTX_load_verify_locations()
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- GH #4846 NetSSL/Crypto: Replace deprecated OpenSSL features
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!!Bug Fixes and Improvements
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- PR #5309 fix(Redis,XML,CppParser): replace dynamic_cast with static_cast for hidden visibility
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- GH #5308 Net: SocketProactor reports success on TCP write after non-blocking connect refusal
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- PR #5304 fix(MongoDB): suppress false topology change notifications on heartbeat
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- PR #5293 Port library to GNU Hurd
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- GH #5288 Fuzzing Issue in MailMessage
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- GH #5287 Fuzzing Issue in DateTime
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- PR #5284 fix(Redis): use shared_ptr for NotificationCenter, harden AsyncNotificationCenter::stop()
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- PR #5283 fix(ApacheConnector,Foundation): fix compile warnings with GCC 15
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- GH #5269 Pipe close deadlocks on
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- PR #5264 fix(Data): Robust date/time parsing in SQLite/PostgreSQL extractor
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- GH #5263 X509Certificate validFrom method throws exception for timestamps ending with Z
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- GH #4883 SecureSocketImpl::shutdown() regression since 1.14.0
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- GH #4772 InvalidCertificateHandler onInvalidCertificate wrong exception
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- GH #4118 Poco Multipart parsing is 10x slower than its Boost/beat or restinio equivalent
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- GH #1097 Process::isRunning returns true for defunct tagged process
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!!!Release 1.15.1
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!!Summary of Changes

‎libversion‎

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