New in CFD 5.1.1.2 (rel. to 5.1.1.1)
====================================

+ Fixed bug with double glass facades. Previously, the DGF air flow
  was occationally added to the zone ventilation air flows, causing
  errors.

+ Reduced problems with unidentified surfaces (windows with missing
  boundary condition for CFD).

+ The CFD backend configuration and naming is changed so that two or
  more cfd backends and thus more than one CFD extensions version can
  coexist. The new backend name is equa-linux-v51. This requires a
  full installation of the backend from within IDA ICE (user is
  prompted). Users should also remove the old backend (wsl --unregister
  equa-linux). (see docs).

+ Some CO2 data was prematurely written to CFD input data. This is
  cleared out to be reintroduced in 5.2.

+ The CFD extension patches a bug in IDA ICE visualization that
  sometimes prevented visualization of Cooling based results.

+ WSL Shutdown works again (MS Windows changed command syntax and
  this version adheres to that change).


2026-05-25