I'm test a ticket. FB 4.0.2.2770.
CREATE TABLE TEST_UPDATE_RC_COLUMN (
ID INTEGER,
NEXT_ID COMPUTED BY (id + 1))

UPDATE TEST_UPDATE_RC_COLUMN SET NEXT_ID = 1

"This column cannot be updated because it is derived from an SQL function or expression.
attempted update of read-only column."

And there no name of column.

@CyberMaxRu Please create a new issue for regressions, and reference this issue for context.

However, please provide exact reproduction steps, as I cannot reproduce this using ISQL (4.0.1 and 4.0.2.2775).

Also double check the version you're using with

select rdb$get_context('SYSTEM', 'ENGINE_VERSION') from rdb$database;

@mrotteveel In isql works fine. Apparently, the access components (FIB+) and the IBExpert do not see that there is also a column name there. I'm embarrassed - the ticket seems to have been made, but in fact I can't use it.

Do you have updated (v4) firebird.msg and fbclient in the client?

@asfernandes On all our servers of client application, after the update to 4.0, there was a firebird.msg from 3.0 (in system32 and SysWOW64). After replace, column name appeared. Thanks for help!
P.S. It lacks the ability to check which firebird.msg is being used by the fbclient.