Note added at v.1.5.4 release:

In the v.1.0 release notes, a new, optional numeric argument for gbak's -v[erbose] switch was announced, supposedly to track commands as a restore proceeded. This feature was withdrawn during Firebird 1.0 beta development due to regression effects and never appeared in any Firebird release.

PLANs for selectable procedures having multiple FOR loops are reported in the wrong order.

Example (from QMDB test):

  create procedure proc1
  returns (a integer)
  as
  begin
    for select a from table1 into :a do
      suspend;
    for select b from table2 into :a do
      suspend;
  end ^^
  ...
  select * from proc1^^
        

1.5.1 produces the PLAN:

PLAN (TABLE2 NATURAL) (TABLE1 NATURAL)
        

instead of

PLAN (TABLE1 NATURAL) (TABLE2 NATURAL)
        

UPDATE :: This issue was fixed in release v.1.5.2.