## New defaults

A few defaults has been changed CLASS77 and CLASS90. They are summarized in Table .

Table: Correspondence between changed defaults in CLASS77 and CLASS90.
Default kind | Old names | New names
Extension | .bur | .30m
Angular unit | arcminute | arcsecond
Epoch | 1950.00 | 2000.00

We are distribution a CLASS procedure named old-set-defaults.class which reset the set default in the CLASS77 way.