i search the changelog for the Versions of Lucee, but i can not find any link or somthing lik this. Not in the Lucee-Admin-Upgrade-Template, nor on the Homepage or the https://lucee.daemonite.io
You can find them on the Downloads page: https://download.lucee.org/ (at the bottom of the “Release” section).
There isn’t one for 5.3.7.48
it’s open source, so you can always look at the source