R pkg i have reshape2 already there by mistake i reinstalled different version of reshape2 ,it accepted and override happen. it is did not show any waning.i am scared about this beacause it is prod cluster ..is it give any issue or data loss?

[#1 · Accepted solution]

@rama

This package makes it easy to transform data between wide and long formats. Package versions are back compatibles until a function is deprecated. If a function is deprecated one scripts may not work, but that will not mean you lost the data. Your script could throw an error if any of the functions in the script don't support the API invoked. Most likely your newer version of the package worked just fine.

Assuming that you installed a newer version of the package and you still want to go to the previous version, you could revert to the previous version using the approach presented in this blog: https://support.rstudio.com/hc/en-us/articles/219949047-Installing-older-versions-of-packages