🖥️ PowerFolder Server 26 FINAL

🖥️ PowerFolder Server 26 FINAL

  • Release Date: January 2026

  • Build Number: 26.0.102

  • Type: Hot Fix Release

📦 Download Links

⬆️ Upgrade Information

  • Please read this complete Release Notes and instructions before upgrading.

  • Please follow the regular upgrade documentation for Windows or Linux

  • Upgrading any previous version higher or equal to version 16.0.100

  • Cluster: Running different versions on the servers in the cluster is supported but limited to version >= 22.0.100

🗑️Restoring top folder from system archive ("BACKUP_REMOVE")

Admins and users are now able to restore top-level folders direct from recycle bin.

web.restore_folder.users.enabled=true

To hide the options from end users set in server config:

web.restore_folder.users.enabled=false

Note: The new functionality is always visible to server admins

📝Support for ONLYOFFICE v9.1.x & 9.2.x

PowerFolder Server, Client, and Mobile Apps now fully support the latest ONLYOFFICE Document Server versions, whether deployed via Docker or as a standalone installation.

🆕 Organization Expiration Management

Two new administrative API endpoints have been added to manage expired organizations more efficiently:

These endpoints simplify maintenance and cleanup of outdated organizational records in larger deployments.

🛡️Content Security Policy (CSP) Protection

To enhance security against Cross-Site Scripting (XSS) and other injection attacks, the application supports enabling Content Security Policy (CSP) headers. CSP allows the browser to restrict which content sources (scripts, styles, images, etc.) are allowed to load, preventing malicious scripts from executing.

Configuration

The CSP mechanism can be controlled via configuration flags in your server configuration file:

# Enable or disable Content Security Policy web.csp.enable=true # Run in report-only mode or enforce policy web.csp.report_only=false

Options

  • web.csp.enable

    • Default: true

    • Enables CSP headers in responses.

    • Set to false to completely disable CSP protection (not recommended).

  • web.csp.report_only

    • Default: false

    • When false, CSP violations will block content that does not comply with the policy.

    • When true, CSP runs in Report-Only mode: violations are logged/reported, but the browser does not block the content.

    This is useful for debugging potential CSP false positives without breaking user functionality.

✨ New: Default user folders on first login

To simplify onboarding for new users, the system can now automatically create default folders at their first login.
Add the following to your Default.config (server maintenance):

# Default folders f.my_files.name=Meine Dateien f.my_files.dir=Meine Dateien f.shared.name=Geteilt f.shared.dir=Geteilt

🔄 Javascript in Email Templates

The email templates are also improved, please update the email templates or delete the old templates.

📂 Enhancements in Database for Sub-Folder Sharing

In this version, major changes have been made to the database tables. New columns and entries have been added to support versioning and preparations for sub-folder sharing in upcoming releases. These changes are backward-compatible, even if the admin decides to downgrade the server.

⬇️ Downgrade Information (optional)

  • In case a downgrade to a previous version is necessary:

    • For a downgrade, you have to review our downgrade documentation.

    • Simply replace the PowerFolder-Server.jar file with that from the previous version you would like to run.

  • Log messages due to the higher schema version of database can be ignored:

    • [DatabaseMigrator]: Database layout version is newer than expected.

📜 Changelog

  • PFS-4711: Fixed edit txt files after creating it

  • PFS-4786: Prevent high load on federated systems when a service is offline


 

  • Release Date: December 2025

  • Build Number: 26.0.100

  • Type: Major Software Release

📜 Full Changelog

  • PFS-3537: Restoring top folder from system archive ("BACKUP_REMOVE") by admin and end user

  • PFS-4694: Navigate into folder after creating it

  • PFS-4702: Add share icon within folder ontop of table

  • PFS-4621: Show lock/editing status in web

  • PFS-4704: Show create folder prominent on empty TOP level

  • PFS-4662: Show upload or create prominent on empty folder

  • PFS-4703: Show upload or create prominent on empty subdirectory

  • PFS-4709: Move notifications from bottom left to bottom right

  • PFS-4644: Skip frontend search - always perform search through backend

  • PFS-4707: Accounts->Add Organiztation: Set default permission of user to "member" after adding

  • PFS-4320: Groups->Add account: Fix initial display of role and change role

  • PFS-4550: Browser "Back" → Search field should retain previous input

  • PFS-4636: Mount folders in under 5 seconds

  • PFS-4251: Prevent deletion of later / new file versions after restoring a selected one in web

  • PFS-4591: Dialog support for very long filenames with spaces in name

  • PFS-4648: Fix unsupported Browser Language(s) – Default to English

  • PFS-4693: Accounts: Add filter right next to search to modify search query

  • PFS-4698: Fix account activation link per mail for new users

  • PFS-4657: MFA reset as organization admin

  • PFS-4637: Fix reset MFA as server admin

  • PFS-4658: Correct notification after turing MFA off

  • PFS-4711: Fixed edit txt files after creating it

  • PFS-4096: Fix OO download when the file link configs. are set

  • PFS-4614: Load configuration for file link editing from server config.

  • PFS-4655: Fix display error while creating documents with large names

  • PFS-3580: Unable to access files containing umlauts and special characters in name

  • PFS-4631: Time change caused Upload Form failure (DateTimeParseException due to UTC ↔ DST conversion)

  • PFS-4647: PDF/JPEG file links in sub-directoreis open inline instead of downloading

  • PFS-4678: Improve handling of expired accounts

  • PFS-4643: Ensure account valid till date is same as organization

  • PFS-4635: Improve database performance on Account, FolderInfo and FolderSettings table

  • PFS-4653: Handle change of login method LDAP to SAML (and back)

  • PFS-4639: Register date and last login date should respect local time format

  • Security improvement: INT-1152

  • PFS-4642: Download and copy of file links in subdirectories leads to “not synced yet"

  • PFS-4641: Fix issue causing occasional sync failures for password-protected links

  • PFS-4719: File link: Deleting file with similar name removes link to a different file

  • PFS-4649: Upload form: “Description” field duplicates after repeated open/close (click-out or Esc)

  • PFS-4679: Fix reverse proxy of servers in LAN when data port is publicly available

  • PFS-4650: Ignore CSP warnings caused by browser extensions

  • PFS-4640: Do not empty (custom) fields, telephone and title when not mapped via LDAP

  • PFS-4699: Registration / Welcome email should send user to login page if activation is already done

  • PFS-4695: Prevent self activation by user filtered by email domain

  • PFS-4690: Show error / notification when required field is not filled

  • PFS-4683: Add frontend additional fields for registration: Address

  • PFS-4685: Account Editor address tab

  • PFS-4682: Add additional field for registration: phone. Validate input

  • PFS-4684: Add additional field for registration: Note

  • PFS-4691: Non activated accounts should have different avatar placeholder icon

  • PFS-4686: Show TOS link on register page footer

  • PFS-4736: Set new org to unlimited storage and user via account editor

  • PFS-4729: Updated favicon