id summary reporter owner description type status priority milestone component version severity resolution keywords cc focuses 10104 PCLZIP_ERR_BAD_FORMAT (-10) after changeset 11524 demetris dd32 "''Incompatible archive PCLZIP_ERR_BAD_FORMAT (-10) : Invalid archive structure'' It starts with r11524. Up to r11523 plugin upgrades work OK. I’m seeing this when upgrading plugins in two of my three test installations. One upgrades via FTP, the other directly. Relevant ticket/changeset: http://core.trac.wordpress.org/ticket/9998 http://core.trac.wordpress.org/changeset/11524/trunk Please let me know if you need more information." defect (bug) closed normal 2.8.1 Upgrade/Install 2.8 major fixed needs-patch reporter-feedback