As a result, older operating systems and browsers (and other user agents that use networking facilities provided by the OS, such as MacPorts when it downloads files) can no longer verify the trust of sites encrypted using Let's Encrypt. On September 30, 2021, DST Root CA X3 expired. In the meantime, a version of the ISRG Root X1 certificate that has not been cross-signed by DST Root CA X3 has been included in modern browsers and operating systems. When the service got started in 2015, no web browser or operating system knew about it and would not have trusted these certificates, so they cross-signed the ISRG Root X1 certificate using DST Root CA X3, a trusted certificate authority already preinstalled in operating systems and browsers at that time. Certificates they issue are signed by the ISRG Root X1 certificate authority. Let's Encrypt is a popular free service that MacPorts and others use to obtain certificates to encrypt their web sites. MacPorts port installs fail on OS X Lion 10.7 after a fresh App Store installation of XcodeĬertificate expired messages when accessing web sites encrypted by Let's Encrypt certificates.Can't find Tcl configuration definitions.MacPorts port installs fail after an OS X upgrade.Error message from "port upgrade outdated": uninstall failure: "an invalid entry was passed".Build failures after upgrading to ncurses 6.Build failures after upgrading to Xcode 7.2.port fails with: Image error: /opt/local/bin/a2p….Port installation fails with "no destroot found". A port failed to build with a message referring to 1/lib: No such file or directory.Image error: /opt/local/bin/xmlwf already exists and does not belong to a registered port.Incompatible library version: X requires version 8.0.0 or later, but libiconv.2.dylib provides version 7.0.0.install_name_tool or strip reports "malformed object (unknown load command)".Certificate expired messages when accessing web sites encrypted by Let's Encrypt certificates.
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