Hello, the changelog on https://packages.debian.org/wheezy/libgnutls26 with url http://metadata.ftp-master.debian.org/changelogs//main/g/gnutls26/gnutls26_2.12.20-8+deb7u1_changelog is not found, but http://metadata.ftp-master.debian.org/changelogs//main/g/gnutls26/gnutls26_2.12.20-8_changelog is available. Best, Alexander Nolis