Release log / 2026-10-23

Friday, 23 October 2026

4 items across 4 nodes. Each one links its primary source.

1. 01Fri 23 Oct
   OCaml release history

   OCaml 5.5.2

   Six security fixes, OSEC-2026-21 to OSEC-2026-26, covering Str.string_partial_match, demarshaling, Windows command quoting and the runtime events library. Also two miscompilation fixes. First release since 5.5.1 on 4 September.

   notes for OCaml 5.5.2

2. 02Fri 23 Oct
   Rocket release history

   Rocket 0.5.2

   The first Rocket release in 883 days, since 0.5.1 on 23 May 2024. It is a security release: rustls-webpki 0.103.16 for RUSTSEC-2026-0382 (distrusted intermediates, the eMudhra case) and tokio 1.54.1 for the Interval race. Multipart fields without a Content-Type no longer get text-decoded.

   changelog for Rocket 0.5.2

3. 03Fri 23 Oct
   Anthropic release history

   anthropic 2.2.0 and 2.3.0

   2.2.0 adds message threads and usage and cost reports by dimension, marking the older reports legacy. 2.3.0 adds Claude Tag endpoints for Enterprise organizations. That makes six stable releases between 20 and 23 October.

   2.2.0 for anthropic 2.2.0 and 2.3.02.3.0 for anthropic 2.2.0 and 2.3.0

4. 04Fri 23 Oct
   Zed release history

   Zed v1.25.3

   The notes say dependencies were updated "to address recent software ecosystem vulnerabilities". They don't say which ones.

   notes for Zed v1.25.3

Also as markdown and JSON. Quiet days get no entry.