Release notes 6.x.x

The standard Server Pro license allows you to run the application in a production environment as well as one in a non-production/sandbox environment; it is highly recommended that you provision a non-production environment for testing.

Server Pro 6.2.2

Release date: 2026-07-20

• Server Pro Image ID: ec9fded5e4e4
• Community Edition Image ID: cfdeecb4e55a
• Git Bridge Image ID: 1c1c485c29e5

Bugfixes

• #1499: fix OVERLEAF_INVITE_TOKEN_SECRET being ignored in settings.
• Fixes broken SES API email transport.
• LDAP: fixes invalid email address error when when using email address as the username.
• Git: fixes fetch error polling log level from external URL.
• Fixes error alert displayed in Project Sharing modal.

Other changes

• Added flush_docs_with_pending_updates script for flushing/discarding stuck documents..
• Updated internal dependencies.

Server Pro 6.2.1

Release date: 2026-07-02

• Server Pro Image ID: 960bd0962d90
• Community Edition Image ID: 9dfdeb4fc7c2
• Git Bridge Image ID: 0ff1254e13df

This release provides security updates and bugfixes.

Server Pro 6.2.0

Release date: 2026-06-24

• Server Pro Image ID: 09a0c9216945
• Community Edition Image ID: 15e991370106
• Git Bridge Image ID: 7b3327edd6f9

Breaking changes

A new required OVERLEAF_INVITE_TOKEN_SECRET environment variable has been introduced to add an extra layer of security for shared tokens. The application will refuse to start if the variable is missing.

Secrets are not automatically generated and must be manually set as part of the upgrade process. You can generate a value with the command openssl rand -base64 32.

Note that there is a minimum length restriction of 16 characters.

New features

• The redesigned editor introduced in version 6.1.0 is now the only available option. It's no longer possible to revert to the legacy editor.
• Added a new DEFAULT_LATEX_COMPILER to set the default compiler used by new projects (either pdflatex, latex, xelatex or lualatex).

Bugfixes

• Removes the options for inserting an image from another project or by downloading an external URL when the feature is disabled.

Other changes

• Updated email styling to a more consistent design
• Updated base image, installed packages and internal dependencies.

Server Pro 6.1.2

Release date: 2026-19-02

• Server Pro Image ID: 3096d55dc956
• Community Edition Image ID: fa5e5a049721
• Git Bridge Image ID: 41b75b4531ed

This is a security release containing updates to the base image and installed packages.

Server Pro 6.1.1

Release date: 2026-02-02

• Server Pro Image ID: fbca2fbec42b
• Community Edition Image ID: e513ba402202
• Git Bridge Image ID: 41b75b4531ed

Bugfixes

• Fixed invalid Documentation link displayed when OVERLEAF_PROXY_LEARN is not set to true.
• Removed invalid Subscription link in the redesign editor settings modal.
• Removed invalid Contact Us link in menu.

Other changes

• Updated internal dependencies.

Server Pro 6.1.0

Release date: 2026-01-20

• Server Pro Image ID: 541439afede8
• Community Edition Image ID: 779d05d794b5
• Git Bridge Image ID: 41b75b4531ed

New design of the Overleaf editor

This Server Pro release contains the new and improved design of the Overleaf editor, and allows toggling to the old editor design. In the next 6.2.X release, users will only see the new and improved design of the Overleaf editor, and will no longer have the option to revert to the old one.

New Features

• Project-wide search: this feature allows you to search for text across all files in your project.

Other changes

• Updated base image, installed packages and internal dependencies.

Server Pro 6.0.1

Release date: 2025-11-17

• Server Pro Image ID: a339d58ea444
• Community Edition Image ID: 719649cd32f8
• Git Bridge Image ID: 38f569f6f277

This release fixes several compile issues emerging after the latest runc updates.

The minimum MongoDB version for Server CE/Pro 6.0.1 is now MongoDB 8.0. You can view our documentation about upgrading MongoDB here.

Server Pro 6.0.0

Release date: 2025-10-30

• Server Pro Image ID: 579c87536b16
• Community Edition Image ID: 21b21080312f
• Git Bridge Image ID: 38f569f6f277

Binary file migration

This new release reduces the storage usage of binary files in half.

An online migration is included in version 5.5, allowing for minimal downtime as part of the upgrade. Before upgrading to Server Pro v6 make sure you're already running the latest version of Server Pro v5.5 (Release Notes 5.x.x) and have run the migration.

See full migration instructions.

MongoDB upgrade to v8

This release bumps the minimum MongoDB version to 8.0

If you're currently using MongoDB v6 or earlier, you'd need to update your versions one major version at a time (v6 → v7 → v8).

Please ensure you have a database backup before upgrading. In case of roll-back, you will need to restore the database backup.

For instructions on how to upgrade MongoDB v6 → v7 → v8 see our step-by-step guide here.

Redis upgrade to v7.4

This release also bumps the minimum Redis version to 7.4.

Update your REDIS_IMAGE in your config/overleaf.rc to REDIS_IMAGE=7.4.

New Features

• Link sharing now can be disabled with OVERLEAF_DISABLE_LINK_SHARING=true.
• OVERLEAF_MAINTENANCE_MESSAGE and OVERLEAF_MAINTENANCE_MESSAGE_HTML are now available to customise the title and content of the Maintenance page.
• OVERLEAF_USER_HARD_DELETION_DELAY and OVERLEAF_PROJECT_HARD_DELETION_DELAY can be configured (in milliseconds) to modify the deleted users/projects expiration delay (defaults to 90 days).

Bugfixes

• Fixed footer rendering with links.
• Improved error messages on SAML login errors.
• Fixed audit log entry not added when a user's admin state is updated on SSO login.
• Fixed History panel errors when TLS is enabled in Redis.
• Compilations can now be stopped when using non-sandboxed compiles.

Other changes

• All the links to the status page (set via OVERLEAF_STATUS_PAGE_URL) now use HTTPS and open in a new browser tab.