Release v6.15.0 · nodejs/undici

What's Changed

Expose EnvHttpProxyAgent to Node.js core bundle, so it can be turned … by @mcollina in #3148
test: add headerslist copy check by @tsctx in #3156
chore: ensure automated v6 release compared to v6 by @mweberxyz in #3149
fetch: do not leak signal listeners by @mcollina in #3158
fix: request cache mode is not the same as request mode by @tsibley in #3151
fetch: don't re-lowercase HeadersList by @tsctx in #3159
fix casing issue when cloning Headers object by @KhafraDev in #3160
build(deps): bump node from 6d0f18a to db8772d in /build by @dependabot in #3163
fix header cloning bug by @tsctx in #3162
chore: change bench naming for h2 by @metcoder95 in #3165
expose WebSocket related events in node bundle by @KhafraDev in #3167
feat: add support for if-match on retry handler by @metcoder95 in #3144
fix: correct firing order of abort events by @tsctx in #3169
create fast MessageEvent by @KhafraDev in #3170
chore: add explicitly @fastify/busboy by @Uzlopak in #3172
chore: remove sinon as dev dependency by @Uzlopak in #3171
webidl changes by @KhafraDev in #3175
preserve dictionary key name in webidl errors by @KhafraDev in #3176

Full Changelog: v6.14.1...v6.15.0