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Release Notes

May 2026

Version 4.5 PreSearch Tool Hotfix (DA: 4.5.26100, CM: 3.3.26093)

Resolved Issues

  • EML Files fail to export from a PST file

  • Address properties without standard SMTP format fail to populate in EML

Note: This PreSearch tool hotfix requires the ConvertMessages directory to be backed up and all the files in the hotfix zip to be copied into that directory. Follow the instructions on the README_ConvertMessages_Hotfix.pdf document on the Downloads site.

December 2025

Version 4.5 hotfix 20251203

Resolved Issues

  • EWS Mailbox 'List' import not functioning for all files (109658)

December 2024

Version 4.5, Hotfix 20241211

This version rolls up all previous hotfixes since the 4.5 release.

Resolved Issues

  • Keyword list not populating (Bug: 97712)

  • EWS Connectivity does not work for basic authentication in on-prem environments. (Bug 87863)

  • EWS Connectivity with Online Archives failing to export in on-prem environments (Bug 89714)

  • By Expression reporting not showing up in certain conditions (Bug 94561)

July 2023 

Version 4.5

Feature Updates

  • Updated database format to accdb (64-bit Discovery Attender Only) for all new searches

  • Option to migrated existing databases from old .mdb to new .accdb  format (64-bit Discovery Attender Only) 

  • Update file parsing components 

  • Support for GCCH Cloud using oAuth

Resolved Issues

  • Resolve multiple errors searching and exporting MSG or EML items with long file paths

  • Resolve deduplication errors with SharePoint Items

  • Resolve error with chained NEARs

  • Resolve errors with keyword reporting

  • Resolve errors with EWS address search

  • Resolve errors with dates in automatic labels

  • Resolve several issues with branch keyword reporting

  • Addressed vulnerability in PreSearch Tool for IMAP/POP exports

No Longer Supported

In newer versions of Exchange (including M365), Microsoft has removed the ability to delete messages from the Purges/Recovered Deleted Items while a mailbox or other data store is on a retention hold. This precludes using Discovery Attender to deploy the ‘Hard Delete’ option to permanently delete items. In that scenario, message will be removed from the folder, but they will be placed the Purges folder. Items can no longer be deleted from the Purges folder with Discover Attender. Please review this article for alternatives.

October 2021

Version 4.4

Feature Updates

  • Added Rest protocol to searching SharePoint data stores

  • Added special handling for white space characters

  • Added Date Range to Auto-Label criteria

  • Added option to merge reports from separate searches 

  • Added ability to multi-mark to keywords view

  • Added hash validation of export files

  • Add 'File Properties' to Item Details

  • Wizard Criteria  enhancements (additional Recovery Items choices, pst password status) 

  • PreSearch Tool Snapshot enhancements (unique item count, password status, summary line, store details)

  • Overhaul Installer

Resolved Issues

  • Resolve EWS account list property issues

  • Resolve unable to export from PST root folder issue

  • Resolve issue with reporting left side proximity with  multiple terms

  • Resolve various formatting issues (sticky resize, display size, etc.)

  • Resolve issues with temp folders not cleaning up after task

  • Resolve various issues with PreSearch Tool (on-prem Dumpsters, timing, exceptions)

May 2021

Version 4.3, Service Pack 2

Feature Updates

  • Added Classification metadata field to file/attachment properties

  • Add list of Recoverable Folders to Logs

  • Add alternate property retrieval options for EWS

  • Add internet ID to PreSearch Tool deduplication

  • Add unique items to PreSearch Tool snapshot

  • Add Move Messages to PreSearch Tool PST export functions

Resolved Issues

  • Resolve keyword brackets reporting issue

  • Resolve various issues with PreSearch Tool snapshot

March  2021

Version 4.3, Service Pack 1

Feature Updates

  • Improve handling for EWS Audit folders

  • Updated PST SSF logic

Resolved Issues

  • Resolve NSF Size limit issues

  • Resolve EWS Archive Test button

  • Resolve EWS Embedded attachment issue

  • Resolve using 'NOT' as keyword with Proximity

  • Resolve MSG export issues

  • Resolve PreSearch Tool dedup popup error warning

  • Resolve Attachment merge issue

  • Resolve incorrect 'In Progress' Task Status

  • Added logic to address missing EWS properties

November 2020

Version 4.3 

Feature Updates

  • Add oAuth support for EWS

  • Add support for multiple EWS credentials

  • Add statistic collection for message class

  • Added EWS configuration options (including page size and other troubleshooting features)

  • Improve speed in rendering large views for Relationship statistics

  • Improve display of data stores for searches with large task lists

  • Improve Logging for EWS searches

  • Improve IMAP connectivity

  • Add checks for .Net 4.6 or above (now required)

Resolved Issues

  • Resolve issues with ‘Has Attachments’

  • Resolve issue with ‘AND NOT’ keyword display

  • Resolve EML Preview Pane HTML string issue

  • Resolve PreSearch Tool PST to Attachment crash on error

  • Resolve issue with SSF in older Exchange recoverable area