This topic describes the new features and improvements introduced in Collaborator 15.1
For information on the changes made to other versions, see Version History.
15.1.15100 - July 24, 2026
New Features:
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Restrict users who can reopen reviews (COLLAB-9671). Added the ability for administrators to grant review reopen permissions to specific users. Only users with the assigned permission can reopen completed reviews.
Improvements:
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UI enhancement: Collapsible Administrator Message section (COLLAB-11051). The "Message from the Administrator" section is now collapsible, reducing screen space while allowing users to expand and view the message when needed.
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Allow administrators to delete rejected or cancelled reviews (COLLAB-11654).
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Restrict administrators from creating users with the "Everyone" keyword (COLLAB-11253).
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Restrict file types for Repository Hosting Services uploads (COLLAB-11547). Administrators can now specify file types that are restricted from being uploaded to reviews through Repository Hosting Services integrations.
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Always display user's project creation permission (COLLAB-12055).
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Removed Mixpanel integration and related settings (COLLAB-12234 & COLLAB-12378).
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Add
collab resynccommand to synchronize missed pull request commits (COLLAB-12323 & COLLAB-12376). Users can now add thecollab resynccomment to a pull request to synchronize commits that were not updated in the review. Supported for GitHub, GitLab, Bitbucket Cloud, and Azure DevOps Git. -
Enhanced autopolling password validation (COLLAB-12575). Improved validation of autopolling passwords to prevent invalid credentials from being saved, ensuring autopolling configurations remain accessible and visible.
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Generate Service Provider (SP) certificate for SAML authentication (COLLAB-12647). Administrators can now generate a Service Provider (SP) public certificate for Collaborator to upload to their identity provider (IdP), enabling successful validation of signed SAML logout requests.
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Implement the base-uri directive in Content Security Policy (CSP) headers (COLLAB-12677). Added support for the
base-uridirective in Content Security Policy (CSP) headers to strengthen security by restricting the URLs that can be used in the HTML<base>element. -
Fixed multiple accessibility issues to improve the overall user experience and accessibility across the application (COLLAB-10853, COLLAB-10854, COLLAB-10855, COLLAB-10856, COLLAB-10857, COLLAB-10858, COLLAB-10859 & COLLAB-10860).
Bug Fixes:
- Fixed an issue where review deadline notifications did not display the correct username of the user who triggered the deadline change (COLLAB-12564)
- Archiving content cache does not include non-review files (COLLAB-12606)
- Upgrade third party libraries to fix security issues (COLLAB-12537, COLLAB-12558, COLLAB-12568, COLLAB-12608, COLLAB-12609 & COLLAB-12668)
15.0.15003 - May 14, 2026
Improvements:
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Update Collaborator's Bitbucket Cloud integration to remove deprecated repository APIs to resolving HTTP 410 errors. (COLLAB-12534)
Bug Fixes:
- Fixed error accessing request object after HTTP request finished processing (COLLAB-11457)
- Upgrade 3rd party libraries to address security issues (COLLAB-12542, COLLAB-12585 & COLLAB-12586)
15.0.15002 - April 8, 2026
Improvements:
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Missing or improperly configured COOP, COEP, or CORP headers (COLLAB-12318)
Bug Fixes:
- Invalid date format in User Settings triggers an error, but the incorrect value is still saved (COLLAB-11489)
- When 'Restrict Access to Review' is enabled in review template, the 'Access Restriction' values are not consistent with the template (COLLAB-12328)
- JPEG2000 images within PDFs are not rendered in the diff viewer (COLLAB-12353)
- VSDX File Causes Out of Memory Error (COLLAB-12379)
- SVN URLDecoder error Illegal hex characters in escape (%) pattern (COLLAB-12382)
- Upgrade 3rd party libraries to address security issues (COLLAB-12394, COLLAB-12395, COLLAB-12396, COLLAB-12397, COLLAB-12425, COLLAB-12426 & COLLAB-12429)
15.0.15001- March 2, 2026
Bug Fixes:
- "User role sync" fails when "Create Collab user on login" is disabled (COLLAB-12255)
- JSON API: ReviewService.getReviews() returns empty results when user has many reviews (COLLAB-12259)
- Collab client connection fails with Collab Server-Auth-only EKU certificate (COLLAB-12261)
- JSON API: UserService.findUsers() does not release license (COLLAB-12291)
15.0.15000 - February 17, 2026
New Features:
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Add project-level archive option to archive all reviews in a project (COLLAB-10067). Introduced project-level archiving to archive all reviews in a project with one action.
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Introduced a file size limit setting for manual uploads in Admin Settings (COLLAB- 10553). Administrators can now restrict the file size allowed for uploads in a review using the new "Max file size in a review" setting under Access Restrictions, applicable to file and folder uploads.
Improvements:
- Notify defect creators on any defect status change (Fix/Delete/Reject) (COLLAB-7903). Defect creators now get in‑app and email alerts for any defect that is fixed, deleted, or rejected.
- Make long URLs in checklist custom fields clickable (COLLAB-8697).
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Show top 10 most recently updated closed reviews when using closed filter (COLLAB-11071).
- Allow multiline text in user login prompt (COLLAB-11248). You can now add multi‑line login prompt messages, allowing clearer instructions and helpful links to be shown on the login screen.
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Reviews are deleted when the linked bitbucket server PR is deleted (COLLAB-11298). Collaborator now detects when a linked Bitbucket Server PR is deleted and automatically updates the associated review to Deleted or Cancelled, based on its current phase.
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Add confirmation message for unchecking checklist items (COLLAB-11319).
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Add configurable action for reviews when Pull Requests are merged or declined (COLLAB-11324). Introduced new repository hosting configuration settings: "When PR is merged" & "When PR is declined". These control the review state transition when an associated PR is merged or declined prior to review completion.
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Upgraded Collaborator to run on Java 17 (COLLAB-11373)
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Add file masking support to GUI Client to create review for a changelist (COLLAB-11509). File-mask filters are now supported when creating a review for a changelist from the GUI client. This enhancement allows users to selectively include or exclude files, providing greater control over the content of a review. Supported for Perforce, GIT, SVN and TFS.
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Change the label name from "LDAP NameIDPolicy format" to "SAML NameIDPolicy format" (COLLAB-11514).
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Update review deadline logic to treat deadline as an inclusive date (COLLAB-11681).
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Add compatibility recommendation note to client installation page (COLLAB-11709). A recommendation is added to the client installation page advising users to run the client and server on the same version to ensure optimal compatibility and performance.
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Increased the database field size to support Jira Project Lists up to 11,000 characters when logging in via Atlassian Server OAuth (COLLAB-12002).
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Updated the Atlassian OAuth configuration to support Atlassian resource data up to 11,000 characters (COLLAB-11651).

