I just published, how do I check if my library actually updated?
You'll find the most up to date answer here --> KB Article: I just published, how do I check if my library actually updated?
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This article references checking the actual code file, but to make it easier you can also look at the _satellite object in the Console if your web browser.
_satellite.buildDate = the last build date of either the production or staging library_satellite.publishDate = the last date the production library was last published
These might be beneficial to pass into a prop or an eVar to see the effects of caching with the data or other troubleshooting purposes.
I have to agree with Adam here. Using the functions below is the fastest and most reliable.