From d7e10fed0af5ee03a8d8e86a4b5e5dc4e76ea068 Mon Sep 17 00:00:00 2001
From: Dimitri Yatsenko <dimitri.yatsenko@gmail.com>
Date: Mon, 20 Jul 2026 17:27:15 -0500
Subject: [PATCH] docs(readme): fix stale citation and add PostgreSQL as a peer
 backend
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- Citation pointed at a non-existent arXiv id (2303.00102/2023); replace with the
  current canonical DataJoint 2.0 manuscript (arXiv:2602.16585, 2026) per
  about/citation.md, incl. RRID.
- README listed only MySQL; the compose stack now runs PostgreSQL (postgres:15,
  MODE=EXECUTE_PG) and PostgreSQL is a peer backend — note it in the Docker
  environment and native prerequisites.
---
 README.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index a8cb0a0c..d664adb5 100644
--- a/README.md
+++ b/README.md
@@ -38,11 +38,11 @@ MODE="LIVE" docker compose up --build
 # MODE="BUILD" docker compose up --build
 ```
 
-The Docker environment includes MySQL, MinIO, and all dependencies.
+The Docker environment includes MySQL, PostgreSQL, MinIO, and all dependencies.
 
 ### Native Python
 
-**Prerequisites:** Python 3.10+, MySQL 8.0+
+**Prerequisites:** Python 3.10+, and a supported backend — MySQL 8.0+ or PostgreSQL (peer backends)
 
 ```bash
 # Setup
@@ -104,7 +104,7 @@ python scripts/check_notebook_versions.py
 
 ## Citation
 
-> Yatsenko D, Walker EY, Tolias AS. DataJoint: A Simpler Relational Data Model. arXiv:2303.00102. 2023. doi: [10.48550/arXiv.2303.00102](https://doi.org/10.48550/arXiv.2303.00102)
+> Yatsenko D, Nguyen TT. DataJoint 2.0: A Computational Substrate for Agentic Scientific Workflows. arXiv:2602.16585. 2026. doi: [10.48550/arXiv.2602.16585](https://doi.org/10.48550/arXiv.2602.16585) — [RRID:SCR_014543](https://scicrunch.org/resolver/SCR_014543)
 
 Full citation information: [docs.datajoint.com/about/citation/](https://docs.datajoint.com/about/citation/)