This release focuses on compatibility fixes, adapter stability improvements, and test/tooling modernisation.

## ⚠️ Important Changes
- **Breaking Changes:** None identified in this release.
- **Action Required:** If you rely on env-based proxy behaviour or CJS resolution edge-cases, validate your integration after upgrade (notably `proxy-from-env` v2 alignment and `main` entry compatibility fix).

## 🚀 New Features
- **Runtime Features:** No new end-user features were introduced in this release.
- **Test Coverage Expansion:** Added broader smoke/module test coverage for CJS and ESM package usage. ([#7510](https://github.com/axios/axios/pull/7510))

## 🐛 Bug Fixes
- **Headers:** Trim trailing CRLF in normalised header values. ([#7456](https://github.com/axios/axios/pull/7456))
- **HTTP/2:** Close detached HTTP/2 sessions on timeout to avoid lingering sessions. ([#7457](https://github.com/axios/axios/pull/7457))
- **Fetch Adapter:** Cancel `ReadableStream` created during request-stream capability probing to prevent async resource leaks. ([#7515](https://github.com/axios/axios/pull/7515))
- **Proxy Handling:** Fixed env proxy behavior with `proxy-from-env` v2 usage. ([#7499](https://github.com/axios/axios/pull/7499))
- **CommonJS Compatibility:** Fixed package `main` entry regression affecting CJS consumers. ([#7532](https://github.com/axios/axios/pull/7532))

## 🔧 Maintenance & Chores
- **Security/Dependencies:** Updated `formidable` and refreshed package set to newer versions. ([#7533](https://github.com/axios/axios/pull/7533), [#10556](https://github.com/axios/axios/pull/10556))
- **Tooling:** Continued migration to Vitest and modernised CI/test harnesses. ([#7484](https://github.com/axios/axios/pull/7484), [#7489](https://github.com/axios/axios/pull/7489), [#7498](https://github.com/axios/axios/pull/7498))
- **Build/Lint Stack:** Rollup, ESLint, TypeScript, and related dev-dependency updates. ([#7508](https://github.com/axios/axios/pull/7508), [#7509](https://github.com/axios/axios/pull/7509), [#7522](https://github.com/axios/axios/pull/7522))
- **Documentation:** Clarified JSON parsing and adapter-related docs/comments. ([#7398](https://github.com/axios/axios/pull/7398), [#7460](https://github.com/axios/axios/pull/7460), [#7478](https://github.com/axios/axios/pull/7478))

## 🌟 New Contributors
We are thrilled to welcome our new contributors. Thank you for helping improve Axios:

- @aviu16 ([#7456](https://github.com/axios/axios/pull/7456))
- @NETIZEN-11 ([#7460](https://github.com/axios/axios/pull/7460))
- @fedotov ([#7457](https://github.com/axios/axios/pull/7457))
- @nthbotast ([#7478](https://github.com/axios/axios/pull/7478))
- @veeceey ([#7398](https://github.com/axios/axios/pull/7398))
- @penkzhou ([#7515](https://github.com/axios/axios/pull/7515))

_Full Changelog: [v1.13.6...v1.14.0](https://github.com/axios/axios/compare/v1.13.6...v1.14.0)_