When Eberron: Rising from the Last War was published in November 2019, the version of the Artillerist artificer published in it originally contained this line (p. 59):
It is immune to poison damage, psychic damage, and all conditions.
However, the artificer class (including this subclass) was updated and republished in Tasha's Cauldron of Everything, and E:RftLW received errata to match the TCoE version.
The November 2020 errata document for E:RftLW modified this line of the Artillerist artificer's Eldritch Cannon feature to remove the last part of the quoted sentence, so it now reads:
It is immune to poison damage and psychic damage.
I feel like I may be missing something here.
Is an Eldritch Cannon now eligible to be subject to some or all conditions? Or was the errata just removing a redundant statement, because the cannon already immune to all conditions by virtue of being an object (rather than a creature)?
To ask another way:
Are there any rules interactions that are changed because of the removal of the text that explicitly afforded condition immunity to the cannon?