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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Interpretation of argument for use_legacy_defaults is not clear","articleBody":"My sense of the way that `use_legacy_defaults` should work is that if I had code that was working in some version and it stops working in a future version, I should be able to use `use_legacy_defaults` to return things to the version that was working.\r\n\r\nSo, for example, if I had things working in 0.8.2 and I upgrade to 0.8.4 or 0.9.0 and things stop working, I should be able to say\r\n```\r\nuse_legacy_defaults('0.8.2')\r\n```\r\nand my code will work again.\r\n\r\nThis particular call definitely won't work (`use_legacy_defaults` only recognizes '0.8.3') and it is not clear to me how it could work.  Basically, it seems like we need to track when a change in default behavior occurred and then \"revert\" any defaults that are different between the version I was using and the current version.\r\n\r\n@sawyerbfuller Does my issue make sense?  This is related to PR #431, I think.","author":{"url":"https://github.com/murrayrm","@type":"Person","name":"murrayrm"},"datePublished":"2020-07-18T05:38:16.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/432/python-control/issues/432"}