Clojurians Log v2

^^ stepping stone release for people doing a rolling deploy from 2.1.0 direct to 2.2.0

Hey folks - XTDB 2.2.0 is out! 🚀 https://github.com/xtdb/xtdb/releases/tag/v2.2.0 It's been a long road from the first beta, so thanks to everyone who's been running the pre-releases 🙏 The headlines: • External sources: run XT alongside your existing Postgres or Kafka, rather than migrating to it - we've already got clients querying the history of data they were producing anyway • Arrow ADBC & Flight SQL: think JDBC/ODBC but Arrow-native - XT stores everything as Arrow already, so results stay columnar all the way into your app • A single writer per database: less work for the rest of the cluster, read-only secondaries, and single-put transactions an order of magnitude faster There are a few breaking changes coming from 2.1, and a rolling upgrade goes via 2.1.1 - do have a read of the upgrade notes before you roll. As always, we'd love to hear how you get on - particularly what you hook up as an external source 🙂 James & the XT Team