POCO C++ Libraries Blog

News and discussion for the POCO Community


Visual Studio 2017 Installer May Break Visual Studio 2008 on WoW64

As it happened in my case, the Visual Studio 2017 installer (Community Edition, but maybe also other editions) may break an existing Visual Studio 2008 installation. Specifically, when you run Visual Studio 2008 under WoW64 (e.g., from a TeamCity agent or similar), the Visual Studio $(WindowsSdkDir) variable will be undefined after running the 2017 installer, […]


Release 1.7.8 Available

Release 1.7.8 of the POCO C++ Libraries is available. This is a maintenance release containing significant improvements and bugfixes in the Foundation, Net, Zip and MongoDB libraries. Furthermore, the bundled SQLite, zlib, PCRE and double-conversion libraries have been upgraded to current releases. Incidentally, release 1.7.8 marks the 12th anniversary of the first public POCO C++ […]


Release 1.7.7 Available

Release 1.7.7 of the POCO C++ Libraries is available. This maintenance release contains bugfixes and improvements in the Foundation, JSON, Net, NetSSL, Data/ODBC, Data/SQLite and Zip libraries. On Apple platforms, the latest Xcode 8.2 toolchains are supported and an IPv6 DNS issue on iOS and related platforms causing rejection of apps during App Store validation […]


Release 1.7.6 Available

Release 1.7.6 of the POCO C++ Libraries is available. This release contains bugfixes and improvements in the Foundation, XML, Util, Net, Data/MySQL and Zip libraries. A special focus of this release was correcting a couple of non-critical issues reported by static code analysis tools. As usual, the full list of changes in in the CHANGELOG. […]


CII Best Practices

I recently did a review of our project with regards to the Core Infrastructure Initiative (CII) Best Practices, in order to ensure we’re following industry best practices with POCO. Things looked very good, with only a few best practices missing, which I have fixed in the meantime: Updated the CONTRIBUTING.md file to include a statement […]


Release 1.7.5 Available

Release 1.7.5 of the POCO C++ Libraries is available. This release fixed a potential dangling pointer issue in Poco::JSON::Object, upgrades bundled SQLite to 3.14.1 and contains a few other minor improvements. Please see the CHANGELOG for the details.


Release 1.7.4 Available

Release 1.7.4 of the POCO C++ Libraries is available. This release fixes a couple of issues in the Net and Data libraries and upgrades bundled Expat to 2.2.0 and SQLite to 3.13.0. Note that Expat 2.2.0 fixes a couple of CVE issues, so upgrading is recommended. Please see the CHANGELOG for the details.


Evolution of POCO Visualized

Here is a super-cool visualization of the evolution of POCO from 2006 to 2015, found on YouTube:


Release 1.7.3 is available

Release 1.7.3 of the POCO C++ Libraries is available. This maintenance release fixes a couple of issues in the Net, Data and Zip libraries and upgrades bundled SQLite to 3.12.2. Please see the CHANGELOG for the details. Upgrading is recommended.


Release 1.7.2 is available

Release 1.7.2 of the POCO C++ Libraries is available. This release upgrades the bundled Expat XML parser to 2.1.1, which fixes a CVE. Furthermore, the bundled SQLite library has been updated to release 3.11.1 and a bug in Poco::Data::RecordSet has been fixed. Please see the CHANGELOG for the details. Upgrading is recommended.