April 10, PyPy team released the Python interpreter “PyPy 7.3.1”.  Interpreters for both PyPy2.7 series and PyPy 3.6 series are released at the same time.

April 10, JavaScript library jQuery development team released the latest update “jQuery 3.5.0”.  This release focuses on security fix.

April 10, development team of open-source “React OS” announced their latest update “ReactOS 0.4.13”, which is built to be compatible with Windows at the API level.  It includes improvements to the USB stack and provides Japanese calendar support.

April 9, security company Sophos announced that “Sandboxie”, a tool for creating Sandbox environment, has been released in open source.  The source code is released under GPLv3 license, and it is available on the official website.

April 6, development team of “CheerpJ”, a compiler that converts Java to JavaScript, released the latest major update “CheerpJ 2.1”.

April 7, Google released the web browser “Google Chrome 81.0.4044.92 (81)”.  It includes new features (like support for NFC).

April 8, Mozilla board announced that Mitchell Baker, the chairman of Mozilla Foundation, is appointed as the next CEO of Mozilla Corporation.  As the share of “Firefox” has halved in three years, she is coming back as a CEO, facing big challenges.

April 6, Red Hat announced that Paul Cormier is named the next CEO and president, and Jim Whitehurst accepted the position of IBM president.  

April 7, Mozilla announced the latest version of the open-source web browser “Firefox 75”.  With the revamped address bar, it has got a refreshed look.

April 2, the NetBSD project released the latest GA version “NetBSD 8.2”.  It is available on the project website.