trdl, which we use as a version manager for #werf, now lets you pin a specific werf version. Previously, you had to select a release group (e.g., v2) and release channel (e.g., stable or beta). Starting from trdl 0.13.0 released last week, you can do:
* trdl use werf v2.74.0
* trdl use werf '>=2'