| Version | Change log |
| Find Unused Contacts for Outlook 4.21 Aug 22, 2022 | New features and enhancements. |
| Find Unused Contacts for Outlook 4.20 Feb 9, 2022 | New features and enhancements. |
| Find Unused Contacts for Outlook 4.21 Aug 22, 2022 | New features and enhancements. |
| Find Unused Contacts for Outlook 4.20 Feb 9, 2022 | New features and enhancements. |
| Find Unused Contacts for Outlook 4.19 Dec 8, 2021 | New features and enhancements. |
| Find Unused Contacts for Outlook 4.18 Jun 8, 2021 | New features and enhancements. |
| Find Unused Contacts for Outlook 4.17 Dec 15, 2020 | New features and enhancements. |
| Find Unused Contacts for Outlook 4.16 Jul 7, 2020 | New features and enhancements. |
| Find Unused Contacts for Outlook 4.15 Feb 4, 2020 | New features and enhancements. |
| Find Unused Contacts for Outlook 4.14 Dec 25, 2019 | New features and enhancements. |
