Calibre 6.7.0 Apr 2026

: Resolved a bug in the E-book viewer where the Piper neural speech backend would incorrectly skip chapters when using the slower/faster speed buttons.

Calibre version 6.7.0, released in late 2022 as part of the v6 release cycle , introduced several significant functional enhancements and security-focused updates. This version continued the evolution of the software following its major transition to the Qt 6 toolkit and the introduction of Full-text search . New Features and Enhancements calibre 6.7.0

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 : Resolved a bug in the E-book viewer