Igor 6.21 has been released

Igor 6.21 has been released.

This is primarily a bug-fix release; you can select multiple waves in the dialogs again, and Draw to Next and Fill To Next modes in graphs have been corrected.

As always, choose "Updates for Igor" from Igor's help menu to find the updaters, or use the direct links below.

IGOR Pro 6.21 is available as a free update to licensed users of the English version IGOR Pro 6.0 and later.

• Macintosh users of IGOR Pro 6.0 or 6.1 should download the IGOR Pro 6.21 installer:


• Windows users of IGOR Pro 6.1 or 6.2 may download the IGOR Pro 6.1 to 6.21 updater:


• Windows users of IGOR Pro 6.0 should run the IGOR Pro 6.21 installer after uninstalling IGOR Pro 6.0:


• Windows users who wish to run the 64-bit beta version of Igor (6.20B06) should see this page for instructions and the download link:


For a list of bug fixes and changes, see: