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New errors introduced in existing (correct) releases in January, February, March and April 2020

Because Discogs changed the data format of the data dumps and I have not yet fixed the scripts that I use there are no monthly statistics yet. But I can still say something about how many previously correct releases actually had errors introduced. As I said (or at least implied) in the previous article this doesn't necessarily mean that the data of the release is now more wrong: it could be that data was added that wasn't previously there and in the added data there is an error (this is what I mostly see).

In January 2020 the 1564 unique releases that had errors introduced were distributed over the data as follows:

Releases in the Discogs database where an error was introduced in January 2020 and which were previously correct

Now, it should be said that this data actually seems to cover a large part of February 2020 as well. The name of the data dump file seems to suggest that it includes data up to February 20.

The 321 unique releases that were changed between February 20 2020 and March 1 2020 and that were previously correct:

Releases in the Discogs database where an error was introduced in February 2020 and which were previously correct


In March 2020 1073 releases that were previously correct had an error introduced:

Releases in the Discogs database where an error was introduced in March 2020 and which were previously correct


Finally, in April 2020 there were 1235 previously correct releases where an error was introduced:

Releases in the Discogs database where an error was introduced in April 2020 and which were previously correct

All these graphs have similar shapes and look very much like the graphs I see of where edits were done in a particular month. So these are not surprising at all.
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