It seems that for upgrades the varname field wasn't added to the vB holiday and subscription tables though it doesn't appear to cause problems. For those getting reports about the missing varname field in the vB holiday and subscription tables in your database, run the following queries to add varname to the tables:
Code:
# replace vb3_ with your vB table prefix you set in the vB config file
ALTER TABLE vb3_holiday ADD varname VARCHAR(100) NOT NULL DEFAULT '';
ALTER TABLE vb3_holiday ADD INDEX varname (varname);
ALTER TABLE vb3_subscription ADD varname VARCHAR(100) NOT NULL DEFAULT '';