# Ray 1.9.1 — Ray-1.9.1 - Product: Ray (https://whatsnew.fyi/product/ray) - Vendor: Anyscale - Date: 2021-12-22 - Version: 1.9.1 - Original notes: https://github.com/ray-project/ray/releases/tag/ray-1.9.1 - Permalink: https://whatsnew.fyi/product/ray/releases/1.9.1 What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog. Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'. --- - **security** — Bump log4j2 version from 2.14 to 2.16 to resolve CVE-2021-44228 and CVE-2021-45046 Patch release to bump the `log4j2` version from `2.14` to `2.16`. This resolves the security vulnerabilities https://nvd.nist.gov/vuln/detail/CVE-2021-44228 and https://nvd.nist.gov/vuln/detail/CVE-2021-45046. No library or core changes included. Thanks @seonggwonyoon and @ijrsvt for contributing the fixes!