Well, they are working on it, but possibly only for internal release. Nobody can buy it.
The following is an unedited list of the majority of changes made since IBrowse 2.4 was released:
02-Nov-18 Beta 25.80 out
Updated welcome, store and acknowledgement text
Fixed user agent strings for release/demo verison
Added AmigaOS 3.1.4 detection
OS4: Changed random number generation routine
More key related changes in preparation 2.5 release
JS: OS4: Removed usage of obsolete OS functions
OS4: Rebuilt with GCC 8.1.0
14-Sep-18 Beta 25.79 out
22-Jul-18 Beta 25.78 out
BUGID 1667: Added support for application/xhtml+xml MIME type
Added support for 3-digit HTML hex colour values
Prevent spoofing entries from deletion if used in URL prefs
Finished localising spoofing preferences
29-May-18 Beta 25.77 out
Added custom spoof string settings for HTTP(S) User-Agent and related JavaScript Navigator object properties, allowing new strings to be added, strings to be reordered and "Spoof as" menu to be customised, all interlinked with the existing URL Prefs spoof setting
Made Search bar prefs list titles' style consistent
Tweaked the IBrowse/Amiga part of the User-Agent strings
Fixed new browsers not always inheriting current spoof setting
JS: Fixed crash when accessing navigator object properties via the URL gadget without a page loaded
07-Apr-18 Beta 25.76 out
Key related changes in preparation for the new 2.5 keys