# KDE Q3 2026: IMAP4rev2 complete, WebDAV-Push and Plasma safe mode in progress

> **Key takeaway:** KDE's Sovereign Tech Agency-funded work in Q3 2026 completed QRESYNC/IMAP4rev2 email sync improvements, made progress on WebDAV-Push calendar sync, and began work on a Plasma safe mode for session recovery.

**Published:** 2026-10-11T00:01:01+00:00 
**Source:** KDE Blogs 
**Category:** foss-apps 
**Canonical URL:** https://fosswire.org/news/kde-q3-2026-imap4rev2-complete-webdav-push-and-plasma-safe-m.html 

## Summary
KDE's quarterly report on its Sovereign Tech Agency-funded work details completed and ongoing projects across Q3 2026. The IMAP Akonadi resource now fully supports QRESYNC, completing the IMAP4rev2 upgrade and significantly improving email sync speed and bandwidth usage. WebDAV-Push support for DAV resources is partially implemented with sync-token support as a side benefit. Plasma development includes a new flexible multi-authentication lock screen system, the beginning of a safe mode for troubleshooting broken sessions, and Kup backup integration. KDE Linux gained automatic Btrfs snapshot integration via kio-snapshot and Snapper.

## What changed in KDE's sovereign-tech funded stack
- **IMAP4rev2 completion**: QRESYNC support finished in IMAP Akonadi resource; reduces sync bandwidth and improves speed
- **WebDAV-Push progress**: "Don't Notify" header support and DavPush subscription code path completed; DAV sync-token support added as side effect for broader server compatibility
- **DAV performance**: Migrated from KIO to QNetworkAccessManager; ObserverV3 port in progress for operation batching
- **PIM QA**: All expected-fail marks removed from end-to-end tests after fixing CalDAV recurrence exceptions, custom property parsing, SQLite foreign key issues, and iTIP sequence bugs
- **Plasma safe mode**: New troubleshooting environment for broken sessions; work started, landing expected Q4
- **Security infrastructure**: Lock screen gained configurable multi-authentication method support; being extended to Plasma Login Manager
- **KDE Linux + Btrfs**: kio-snapshot integrated with Snapper for automatic user-level snapshots; Baloo indexing excludes snapshots; Filelight gaining clearer free-space reporting
- **Kup backup**: Ported to Qt 6, made official Plasma component with synchronized release schedule; excludes user-level Flatpak apps/runtimes by default
- **KConfigXT expansion**: More apps ported; new GUI config editor for system administrators in progress
- **KAccountAutoconfig**: Near feature-complete; moving to KDE Frameworks next, then integration with KOnlineAccounts and PIM apps
- **Kontact Flatpak**: Scoping started; Plasma-PIM dependency chain being reworked to D-Bus based interfaces

## Why it matters
The IMAP4rev2 and upcoming WebDAV-Push improvements will benefit users of KDE PIM applications (KMail, KOrganizer, Kontact) with faster, more efficient syncing against modern mail and calendar servers. The Plasma safe mode and Btrfs snapshot integration in KDE Linux improve system recoverability for end users. The Kontact Flatpak effort, while early, could eventually make KDE's PIM suite more accessible on containerized distributions and potentially Plasma Mobile.