Update IQ Driver to be able to connect to Oracle

When I try to connect to an Oracle instance, I get the following error: ORA-28040: No matching authentication protocol.

I presume it's because the Devart library included in the IQ driver is outdated. See https://forums.devart.com/viewtopic.php?t=36439

Can you update the driver please?

Ps: you can reproduce this by trying to connect to a local Oracle database hosted in a Docker container (for free), see https://store.docker.com/images/oracle-database-enterprise-edition

Further information:
Linqpad 5 (developer edition) v5.31.00
IQ Driver v2.1.4.0


  • Any update on this? Is this bug confirmed?
  • I'm looking into this at the moment - hope to have an answer this week.
  • I've uploaded a new IQ driver beta with the latest DevArt drivers. Go to View More Drivers and click the link to update.

    Let me know if this makes any difference.
  • Version of the IQ driver indeed solves the problem. Thanks!
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