# Now · 2026-10 Where things stood on 2026-10-18, so far this month: what I was reading, the tracks under way and the newest writing, and what changed since 2026-09-30. > Canonical URL: https://sudohulk.com/now/2026-10 > Author: Vignesh Kumar A > Licence: CC BY 4.0. Quote freely, cite the canonical URL. --- Where things stood on 2026-10-18, so far this month, and what changed since 2026-09-30. Worked out from the site's own dates, in UTC days; the same dates give the same page. ← [2026-09](https://sudohulk.com/now/2026-09.md) · [now](https://sudohulk.com/now.md) ## What changed ```diff --- /now/2026-09 +++ /now/2026-10 @@ reading @@ Consensus on Transaction Commit Designing Data-Intensive Applications · since 2026-09-01 The Rust Programming Language @@ tracks @@ Building sudohulk.com · active · 1/1 parts +PostgreSQL internals, explained simply · active · 1/5 parts @@ writing @@ +2026-10-17 · essay · How PostgreSQL tells every connection its cache is stale ``` `SELECT * FROM me AS OF 2026-10-18` ## Reading - Consensus on Transaction Commit - Designing Data-Intensive Applications · since 2026-09-01 - The Rust Programming Language ## Tracks under way - [PostgreSQL internals, explained simply](https://sudohulk.com/tracks/pg-internals-simply.md): series · active · 1/5 parts · last active 2026-10-17 - [Building sudohulk.com](https://sudohulk.com/tracks/building-sudohulk.md): series · active · 1/1 parts · last active 2026-09-21 ## Newest writing - [How PostgreSQL tells every connection its cache is stale](https://sudohulk.com/writing/postgres-cache-invalidation.md): 2026-10-17 · essay - [Full-page writes and torn pages](https://sudohulk.com/writing/full-page-writes-and-torn-pages.md): 2026-09-22 · note - [Lazy transaction id assignment](https://sudohulk.com/writing/lazy-xid-assignment.md): 2026-09-22 · note - [Hi, I'm Vignesh. Start here](https://sudohulk.com/writing/hello-sudohulk.md): 2026-09-21 · essay - [pd_lsn vs record LSN](https://sudohulk.com/writing/pd-lsn-vs-record-lsn.md): 2026-09-21 · note