Calibre 6.7.0 < 2025-2026 >

A notable security measure in this release (specifically identified in related vulnerability reports like CVE-2026-33205) was the decision to in the E-book viewer. This change was implemented as a proactive security hardening measure to prevent potential tracking or exploitation via remote assets. Bug Fixes and Stability

: Corrected the "asciiize" option in TXT output, which previously failed to apply to inline Tables of Contents. calibre 6.7.0

: Fixed a synchronization issue where annotations were not properly saved to the server from some Android devices using Firefox. A notable security measure in this release (specifically