Impact Score: 5/10
Deno v2.2.2 — Release Notes & Engineering Impact
Source available — automated, not human-reviewed
Component: deno · Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
⚡ Executive Summary (TL;DR)
Deno v2.2.2. Source highlight: fix(check): regression - implicit jsxImportSource was not resolving (#28228)
Who Does This Impact? (Role-Based Analysis)
💻 Software Engineers & Devs
Check the source notes against the package and APIs you use before upgrading.
📊 Product & Engineering Leads
Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.
⚙️ DevOps & Security
Verify the target version, runtime requirements and rollback procedure in the official documentation.
⚡ Performance & Enhancements (1)
- perf(install): only read initialized file if we care about the tags (#28242)
🔧 Bug Fixes & Patches (6)
- fix(check): regression - implicit jsxImportSource was not resolving (#28228)
- fix(cli): add `compilerOptions.lib` examples to config-file.v1.json (#28226)
- fix(config): allow specifying absolute path for patch and fix panic with
- fix(ext/node): decipherIv() range error on invalid final block length (#28215)
- fix(ext/node): descriptive sqlite error messages (#28272)
- fix(fmt): support "--ext vto" and "--ext njk" (#28262)
📄 View Raw Release Notes (Original Developer Log)
### 2.2.2 / 2025.02.25
- fix(check): regression - implicit jsxImportSource was not resolving (#28228)
- fix(cli): add `compilerOptions.lib` examples to config-file.v1.json (#28226)
- fix(config): allow specifying absolute path for patch and fix panic with
exports in package.json (#28279)
- fix(ext/node): decipherIv() range error on invalid final block length (#28215)
- fix(ext/node): descriptive sqlite error messages (#28272)
- fix(fmt): support "--ext vto" and "--ext njk" (#28262)
- fix(http): generate `OtelInfo` only when otel metrics are enabled (#28286)
- fix(install): don't error on unknown media types in install (#28234)
- fix(lint): don't recurse infinitely for large ASTs (#28265)
- fix(lint): give access to SourceCode in 'deno test' (#28278)
- fix(lint): plugins ignored when no rust rule active (#28269)
- fix(lint): update deno_lint (#28271)
- fix(lsp): close server on exit notification (#28232)
- fix(lsp): create cacheable `ExportInfoMap` per language service (#28240)
- fix(unstable): lint plugin `:exit` called at wrong time (#28229)
- fix: add info suggestion for `unsafely-ignore-certificate-errors` and add
`--help=full` (#28203)
- perf(install): only read initialized file if we care about the tags (#28242)