Links: https://fred.stlouisfed.org/data/RRSFS.txt and https://fred.stlouisfed.org/data/INDPRO.txt
You have to look at the "Last Updated:" line.

For bash users, here are the two key lines in my script:

curl -sL "https://fred.stlouisfed.org/data/INDPRO.txt" >z1
sed -n '/^[12][0-9][0-9][0-9]-/p' z1 | awk ' $1 >= "1950" {print $0}' | sort -r -k1,1 -u - ind_db.txt | tac >ind_db.txt

(Although I now see that there is a potential race condition on the file ind_db.txt. Not safe to read and write the same file in a pipe.)

My script runs every day and downloads & keeps the most recent file from FRED. Below is a list of the last handful. You can see that the updates come around the middle of the month and sometimes also get an update a few days or weeks later.

rrsfs-2021-12-15.txt
rrsfs-2022-01-14.txt
rrsfs-2022-02-10.txt
rrsfs-2022-02-16.txt
rrsfs-2022-03-16.txt
rrsfs-2022-04-14.txt
rrsfs-2022-05-11.txt
rrsfs-2022-05-17.txt
rrsfs-2022-06-15.txt
rrsfs-2022-07-15.txt
rrsfs-2022-08-17.txt
rrsfs-2022-09-15.txt
rrsfs-2022-10-14.txt
rrsfs-2022-11-16.txt
rrsfs-2022-12-15.txt
rrsfs-2023-01-18.txt
rrsfs-2023-02-14.txt
rrsfs-2023-02-15.txt
rrsfs-2023-03-15.txt
rrsfs-2023-04-14.txt
rrsfs-2023-04-24.txt
rrsfs-2023-05-16.txt
rrsfs-2023-06-15.txt
rrsfs-2023-07-18.txt
rrsfs-2023-08-15.txt
rrsfs-2023-09-14.txt
rrsfs-2023-10-17.txt

Mechanical Investing FAQ

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