According to the Odaily Planet Daily report, Ordinals founder Casey said that version 0.19.1 of ord has been released, which has a significant change: the new full index is now 221 GB instead of 289 GB, saving 68 GB of space.
This is a complete index, containing sats, addresses, and runes. The data savings are due to a simpler commit in one line, which fixes a bug in redb that caused it to only reuse pages freed two transactions ago, instead of the last transaction.