This document collects changes that have been made to Perma's archival technique over time, which might affect the way older archives are stored or behave.
- 5/1/2014: Stopped creating wget captures.
- 4/10/2014: Stopped creating Instapaper text captures.
- 2/28/2014: Started creating WARCs using warcprox alongside wget captures.
- 11/22/2013: Switched from 11-character IDs to
ABCD-1234IDs.