AIMMS 4.66.2 Release is the latest version and has been released last week

Related products: AIMMS Language
AIMMS 4.66.2 Release is the latest version and has been released last week

AIMMS 4.66.2 Release



The AIMMS 4.66.2 Release was released on May 17, 2019 (build 4.66.2.6). Changes made in this release are listed below. A high level overview can be found at the AIMMS New Features Page.



Resolved AIMMS Issues


  • CPLEX errors could be generated if the model contained indicator constraints and the CPLEX option 'Check solution' was switched on.
  • Sometimes an incorrect unit analysis warning was triggered, when the units involved unit parameters.
  • Using the loopcount in the condition of a For statement could lead to a severe compilation error.
  • The specification ">t8i" in the FormatString caused an error when the actual value to display was equal to 0.
  • When a multi-dimensional identifier was written without parentheses where that was not expected, AIMMS would sometimes crash instead of raising a compilation error.
  • In rare cases, when the WebUI was open, AIMMS would hang during compilation (showing the 'Scanning' status).
  • High dimensional identifiers leaked memory when closing the model (but not AIMMS).
Resolved WebUI Issues


  • Sometimes identifiers which should display were hidden on a page.
  • Zooming in the map widget using the mouse would sometimes also scroll the whole page.
  • Earlier, if the node size for a set of nodes was the same, the map would consider the value in the set with node radius ranging from 3 to 10, i.e any value 3 and below would take node radius as 3, 10 and above as 10 and the rest the absolute value 4-9. We have now increased the max size to 21.25, so node size 3 and below will be radius 3, 4 to 21 that absolute value and 21 and above radius 21.25.
  • Having a domain condition which only involved an element parameter, could lead to the associated identifier not being displayed in the WebUI.
  • Using custom widget positions could lead to unexpected rendering of your WebUI when resizing the screen.
  • In the Selection box widget, the order of the elements displayed in the selection list was not always as expected.
  • When running a procedure (by pressing a button on the WebUI) and having the Data Manager still open, could lead to a message stating that 'another procedure is already running'.
Be the first to reply!

Didn't find what you were looking for? Try searching on our documentation pages:

AIMMS Developer & PRO | AIMMS How-To | AIMMS SC Navigator