The latest ezFreezer® stable release:  1.6.12  (April 18, 2026).

Version line / edition	Release years	Latest	Maintenance status
1.6.x	2021 - 2026	1.6.12	Active support
1.5.x	2017 - 2021	1.5.10	No longer supported, security support ended 2024/07
1.4.x	2006 - 2017	1.4.9	No longer supported, security support ended 2020/09
1.4.x SUE edition	2007 - 2014	1.4.7 SUE	No longer supported, security support ended 2017/07

Please contact our Support Team to learn about your update and upgrade options.

Changelog (incomplete, work in progress)

• 1.6.12
  Fix the long standing issues with Search functionality for search queries with characters '%' and '_'.
  Vast improvements for searches of date patterns: adjusting to selected date format, recognizing a partial date, like MM/DD without a year, etc.
  Fix a minor security issue in filtering Search results, when non-Admin user could reveal an existence (but not the value) of private field of other user's sample.
  Improvements in navigation of multi-page results of Browse and Searches.
  
• 1.6.11
  Enhancements in presenting 'Search results' for searches yielding only one sample.
  Fixes for issues with Custom-Defined field previews (show/hide Values block based on selection of field Type).
  Improvements for cases, when Custom-Defined field Type was changed for a field already in use.
  More strict requirements for length of new passwords and user names.
• 1.6.10 (not released)     
  Security improvements. More strict complexity requirements for new passwords.
• 1.6.9
  Fix a long standing and obscure bug that lead to displaying an URL/percent encoding ("%" followed by two hexadecimal digits) for unsafe ASCII characters in freezers names, sample types names and search strings. (E.g., displaying "nutri%C3%A7%C3%A3o" instead of intended "nutrição".)
  Minor interface tweaks and fixes. Improved 'Manage Users' view.
• 1.6.8
  Security fixes and improvements.
  Allow to rename built-in administrative account (with role Super).
• 1.6.7
  Add ability to change the order of custom-defined fields.
  Allow to emulate "Boxes on any sub-level" by using auto collapse feature for sub-divisions with just one item.
  Allow to change a configuration of not empty freezer, as long as existing samples remain with-in updated range(s).
• 1.6.6
  Fix a regression introduced in 1.6.5 that broke a navigation with-in "Help" section.
  Allow several links in URL custom-defined field type. (Thanks to Enamine for valuable feedback!)
• 1.6.5
  Interface fixes and improvements for ultra high resolution monitors (4K, WQUXGA).
  Improved logic of "OK, return" button for better navigation.
• 1.6.4
  Additional security improvements.
• 1.6.3
  Critical security fixes.
• For all versions below 1.6.3,  ATGC Labs strongly recommends to limit ezFreezer accessibility to local (trusted, DMZ) network only.
  If you need accessibility to your ezFreezer from the Internet - upgrade to the latest version (or, at least, use 1.6.3 and above).
• 1.6.2
  Minor interface tweaks and fixes.
• 1.6.1
  Fixes for minor interface glitches after transition to "No quirks mode" rendering.
• 1.6.0
  From version 1.6.0, content produced by ezFreezer (HTML, CSS) won't force your browser in to "quirks mode" and will be rendered in Standards mode ("no quirks mode"). Internet Explorer browser is no longer supported. Use Chrome, Edge, Firefox, Safari.
  Changes in ezFreezer database schema.
  Compatibility with Windows 11.
  
• 1.5.10
  Fix a bug in subdivision item (individual Column, Rack, etc) naming for digits-only names.
• 1.5.9
  ...
• 1.5.8
  ...
• 1.5.7
  Add ability to change the order of freezers under 'Freezers' top menu.
  Several improvements in 'Favorite Boxes' navigation and management.
• 1.5.6
  Improvements in database "Restore" procedure checks for valid backup file format and structure.
• 1.5.5
  Various interface improvements. Redesigned buttons.
• 1.5.4
  Added Coronavirus icons and pre-defined sample type.
• 1.5.3
  Add ability to assign short names to individual subdivision items (Columns, Shelves, Racks, etc).
  New box centric meta-report.
  Fix a long standing bug (KeyError / level_id) in Special Operations -> Move Racks/Shelves navigation.
• 1.5.2
  Refactor all reports under 'Reports' top menu.
• 1.5.1
  Security fixes.
  Fix a minor regression introduced in 1.4.8
• 1.5.0
  Add ability to select/change date format (mm/dd/yyyy, dd/mm/yyyy, yyyy-mm-dd) in user's preferences.
  Changes in ezFreezer database schema. Substantial performance improvement for databases with more than 50K samples.
  Compatibility with Windows 10.
  
• 1.4.9
  Fix a serious bug in 'Import Objects' operation: with erroneous input file, it was possible to 'import' several samples to the same position.
  Several improvements in pre-Import data checks and validations.
• 1.4.8
  Add ability to transfer ownership of selected set of samples to other user.
  Refactor clipboard operations (Cut/Copy/Paste/PasteNew) to handle overlapping changes from concurrent sessions.
  Fix a bug in 'Nuremic' notation of cell coordinates.
• 1.4.7
  Fix a regression introduced in 1.4.5.n that could cause 'UnicodeDecodeError' failure.
  Last version for SUE edition branch.
• 1.4.6
  From 1.4.6, all ezFreezer installers have a Digital Signature.
  Better looking favicon in page title area.
  Fixed a long standing typo "Avaliable Reports".
• 1.4.5
  ...
• 1.4.4
  Box size limits increased up to 30 x 30.
• 1.4.3
  Several improvements of 'Import Objects' operation.
• 1.4.2
  First version of SUE edition branch.
• 1.4.1
  This release contains performance improvements and bug fixes.