update spec.yml

Author: RockfordMankiniUCSD

images/spec.yml

@@ -25,7 +25,7 @@ images:
     # prepull: false #-- uncomment to disable prepulling behavior for scipy-ml. gives you space on machine in exchange for build time.
 
 tag:
-  prefix: "2026.1"
+  prefix: "2026.3"
 
 all_info_cmds:
   PY_VER: