Compare / versions

Edge 156 (beta) vs Edge 155

Edge's beta channel next to stable on the fleet: two CSS features a page can detect, a reordered client-hint brand list, and the same TLS and HTTP/2 fingerprint.

Microsoft Edge

On the fleet, Edge runs as stable (measured 155.0.4283.60, on Chromium 155.0.8059.80), beta (156.0.4314.23, Chromium 156.0.8078.12) and dev (157). Unlike Chrome, Edge has no pinned previous majors, so the useful comparison is the other way round: what the next release changes, measured before it reaches stable. Below: what differs from inside a page and on the wire, what that means for detection, and what you can configure. The Chromium side of these releases is covered in Chrome 155 vs 154 and Chrome 156 (beta) vs 154; how Edge differs from Chrome is in Chrome vs Edge.

New in 156, measured on the fleet

Present in the 156 beta and absent in 155 in our probe (rows highlighted in the table below). Both come from Chromium 156, as on Chrome's beta:

CSS random() — random numeric values in CSS (width: random(10px, 100px)).
CSS scroll-snap-type: pair.

Already in 155, unchanged in 156

The Chromium 155 features — margin-trim, symbols(), text-decoration-skip-spaces and the media-playback-while-not-visible permissions policy — are present in both builds, so they no longer separate stable from beta.
<fencedframe> and window.fence are still present in both, as are the Topics API and Protected Audience; Shared Storage, Attribution Reporting, Private Aggregation and requestStorageAccessFor are absent in both.
Not exposed in either build: text-decoration-inset, the corner shorthands, streamAppendHTML(), WebTransport reliability, windowing controls (window.maximize()) and srgb-linear canvases. Playwright launches Edge with --disable-field-trial-config, so features rolled out gradually stay off in automated sessions.

What a site sees

	Edge 156 beta	Edge 155
User agent	`Chrome/156.0.0.0 … Edg/156.0.0.0` (reduced).	`Chrome/155.0.0.0 … Edg/155.0.0.0`.
Client hints	Brands `Not:A-Brand 8`, `Chromium 156`, `Microsoft Edge 156` — the GREASE brand now comes first; full versions `156.0.4314.23` (Edge) and `156.0.8078.12` (Chromium).	`Microsoft Edge 155`, `Chromium 155`, `Not(A:Brand 24` — GREASE brand last; full versions `155.0.4283.60` and `155.0.8059.80`.
TLS and HTTP/2	JA4 `t13d1516h2_8daaf6152771_806a8c22fdea`, peetprint, HTTP/2 SETTINGS and header order identical to 155 (JA3 differs per connection because of GREASE).	The same.
Fingerprint and bot checks	Same canvas hash, WebGL (SwiftShader), 5 plugins, languages and screen; bot.sannysoft.com flags only "WebGL Renderer".	The same.
Playwright	Every probed feature works: main-world evaluate, console events, init scripts, routing, screenshots, PDF, device emulation, tracing.	The same.

For scraping and detection

The version is declared in four places and they must agree: the reduced user agent (both the Chrome/ and the Edg/ token), sec-ch-ua, navigator.userAgentData.brands and the high-entropy fullVersionList. 156 also moves and changes the GREASE brand, so a brand list copied from 155 next to a 156 user agent is inconsistent.
Two cheap probes separate 156 from 155: CSS.supports("width", "random(10px, 100px)") and CSS.supports("scroll-snap-type", "pair"). An "Edge 156" user agent on a 155 engine fails both.
A beta user agent is a small cohort. Most visitors run stable; use channel: "beta" to see what breaks before it ships, not to blend in.
Nothing changes on the wire. TLS and HTTP/2 fingerprints are the same, and match Brave's (see Edge vs Brave), so network-level scoring treats both Edge versions alike.
The core count differed between the two launches (24 vs 16) only because they landed on different nodes; it is not a version difference.

Configurable — by you, by us, by nobody

Item	Who controls it	How
Which release runs	You	`channel: "beta"` for 156 today, `"dev"` for 157, nothing for stable (155). Edge has no `version` pins on the fleet; the Edge page lists the current channels.
Features in the release notes but not exposed	cdpfleet (launch flags)	Chromium `--enable-features` switches are set by the fleet, not by launch options. Tell us if you need one for testing.
`<fencedframe>` / `window.fence`	Nobody	Still present in both builds; Chromium plans to remove it from 157 on.
Fingerprint surface (UA, client hints, canvas, WebGL, screen)	You, per context	Unchanged between the versions; `newContext` options as before.
CDP access	You	`cdp: true` works on every Edge channel (see the edge-cdp recipe).

Measured on the fleet (2026-10-16)

One headful launch of each on the production fleet through the same proxy, probed from inside a page and via tls.peet.ws. Timings are a single sample; core counts are the node's.

Launch and cost

Single run; timings depend on the proxy and on fleet load.

	Edge 156 beta	Edge 155
Launch body	{"headless":false,"channel":"beta"}	{"headless":false}
Threads used	2 (linux_headful)	2 (linux_headful)
Browser version	156.0.4314.23	155.0.4283.60
Launch request → browser ready	0.5 s	0.4 s
Playwright connect	0.1 s	0.1 s
Load example.com	1.0 s	2.0 s
Load tls.peet.ws/api/all	1.5 s	2.3 s

What the network sees

From tls.peet.ws/api/all, requested by the browser itself. JA3 hashes change between runs of the same build (GREASE), so compare JA4 and the HTTP/2 fingerprint.

	Edge 156 beta	Edge 155
HTTP version	h2	h2
JA4	t13d1516h2_8daaf6152771_806a8c22fdea	t13d1516h2_8daaf6152771_806a8c22fdea
Peetprint hash	8f568b2a409b82d0ec24cb84bf3bc3fc	8f568b2a409b82d0ec24cb84bf3bc3fc
Akamai HTTP/2 fingerprint	1:65536;2:0;4:6291456;6:262144\|15663105\|0\|m,a,s,p	1:65536;2:0;4:6291456;6:262144\|15663105\|0\|m,a,s,p
Cipher suites / extensions	16 / 18	16 / 18
Header order (first 12)	method, authority, scheme, path, sec-ch-ua, sec-ch-ua-mobile, sec-ch-ua-platform, upgrade-insecure-requests, user-agent, accept, sec-fetch-site, sec-fetch-mode	method, authority, scheme, path, sec-ch-ua, sec-ch-ua-mobile, sec-ch-ua-platform, upgrade-insecure-requests, user-agent, accept, sec-fetch-site, sec-fetch-mode

What page scripts see

Read with page.evaluate on example.com. Cores and memory are the server's and vary between fleet nodes.

	Edge 156 beta	Edge 155
navigator.userAgent	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36 Edg/156.0.0.0	Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.36 Edg/155.0.0.0
UA-CH brands	Not:A-Brand 8 · Chromium 156 · Microsoft Edge 156	Microsoft Edge 155 · Chromium 155 · Not(A:Brand 24
UA-CH full version list	Not:A-Brand 8.0.0.0 · Chromium 156.0.8078.12 · Microsoft Edge 156.0.4314.23	Microsoft Edge 155.0.4283.60 · Chromium 155.0.8059.80 · Not(A:Brand 24.0.0.0
navigator.platform / vendor	Linux x86_64 / Google Inc.	Linux x86_64 / Google Inc.
Languages	en-US, en	en-US, en
Timezone / locale	UTC / en-US	UTC / en-US
Screen (w×h×availW×availH×depth)	1280x720x1280x720x24	1280x720x1280x720x24
Window outer / inner / DPR	1288x805 / 1280x720 / 1	1288x805 / 1280x720 / 1
hardwareConcurrency / deviceMemory	24 / 32	16 / 32
WebGL vendor	Google Inc. (Google)	Google Inc. (Google)
WebGL renderer	ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)	ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)
WebGL version	WebGL 2.0 (OpenGL ES 3.0 Chromium)	WebGL 2.0 (OpenGL ES 3.0 Chromium)
WebGPU (navigator.gpu)	yes	yes
Canvas hash	f5a94624	f5a94624
navigator.webdriver	no	no
window.chrome / navigator.connection	yes / yes	yes / yes
Plugins / PDF viewer	5 / yes	5 / yes
Notification.permission / permissions.query	default / prompt	default / prompt

Web platform features

Presence probes; a user agent that claims one version while exposing another's features is a detectable inconsistency.

	Edge 156 beta	Edge 155
`Iterator.prototype.includes` (new in Chrome 154)	yes	yes
`FontFace.width` (new in Chrome 154)	yes	yes
CSS `text-decoration-inset` (new in Chrome 154)	no	no
`Iterator.prototype.join` (Chrome 153)	yes	yes
`Iterator.zip` (Chrome 153)	yes	yes
CSS `scroll-axis-lock` (Chrome 153)	no	no
`<camera>` element (Chrome 153)	yes	yes
`document.requestStorageAccessFor` (deprecated in 153)	no	no
Topics API (`document.browsingTopics`)	yes	yes
Protected Audience (`navigator.joinAdInterestGroup`)	yes	yes
Shared Storage (`window.sharedStorage`)	no	no
Attribution Reporting (`window.attributionReporting`)	no	no
Private Aggregation	no	no
WebHID (`navigator.hid`)	yes	yes
CSS `margin-trim` (Chrome 155)	yes	yes
CSS `text-decoration-skip-spaces` (Chrome 155)	yes	yes
CSS `corner` shorthand (Chrome 155)	no	no
CSS `symbols()` (Chrome 155)	yes	yes
`Element.streamAppendHTML` (Chrome 155)	no	no
`WebTransport.reliability` (Chrome 155)	no	no
`window.maximize()` — Additional Windowing Controls (Chrome 155)	no	no
Canvas `srgb-linear` colour space (Chrome 155)	no	no
Permission policy `media-playback-while-not-visible` (Chrome 155)	yes	yes
CSS `random()` (Chrome 156)	yes	no
CSS `scroll-snap-type: pair` (Chrome 156)	yes	no
Fenced frames (`window.fence`) — removal starts in 157	yes	yes
`rel=compression-dictionary` (Chrome 156 updates)	yes	yes

bot.sannysoft.com

The classic headless-detection test page; what it marks red.

	Edge 156 beta	Edge 155
Checks / failed	57 / 1	57 / 1
Failed checks	WebGL Renderer	WebGL Renderer

A plain-HTTP URL (http://ip-api.com/json)

Chrome 154 warns before loading insecure HTTP by default — does that reach an automated session?

	Edge 156 beta	Edge 155
Final URL	http://ip-api.com/json/?fields=status	http://ip-api.com/json/?fields=status
HTTP status	200	200
Content loaded / warning page first	yes / no	yes / no

Playwright over the remote connection

Which client features work on this side.

	Edge 156 beta	Edge 155
page.evaluate runs in the page's own world	yes	yes
addInitScript visible to page scripts	yes	yes
Console events	yes	yes
Request interception (page.route)	yes	yes
Screenshot	yes	yes
PDF	yes	yes
Mobile device emulation	yes	yes
Tracing	yes	yes

Rows where the two sides differ are highlighted. IP addresses are replaced with placeholders (203.0.113.x). The probe is compare/probe.mjs in our repository; the raw result is below.

Raw output

{
  "ran_at": "2026-10-16T01:02:37.029Z",
  "sides": [
    {
      "label": "Edge 156 beta",
      "engine": "edge",
      "body": {
        "headless": false,
        "channel": "beta"
      },
      "launch": {
        "browser": "edge",
        "resource_class": "linux_headful",
        "weight": 2,
        "launch_ms": 510,
        "connect_ms": 120,
        "example_ms": 999,
        "peet_ms": 1505
      },
      "network": {
        "http_version": "h2",
        "ja4": "t13d1516h2_8daaf6152771_806a8c22fdea",
        "ja3_hash": "d8db12fadaa9f4970aa3014a9e1b032e",
        "peetprint_hash": "8f568b2a409b82d0ec24cb84bf3bc3fc",
        "ciphers": 16,
        "extensions": 18,
        "akamai_h2": "1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p",
        "akamai_h2_hash": "52d84b11737d980aef856699f885ca86",
        "header_order": [
          "method",
          "authority",
          "scheme",
          "path",
          "sec-ch-ua",
          "sec-ch-ua-mobile",
          "sec-ch-ua-platform",
          "upgrade-insecure-requests",
          "user-agent",
          "accept",
          "sec-fetch-site",
          "sec-fetch-mode"
        ]
      },
      "page": {
        "user_agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/156.0.0.0 Safari/537.36 Edg/156.0.0.0",
        "platform": "Linux x86_64",
        "vendor": "Google Inc.",
        "languages": [
          "en-US",
          "en"
        ],
        "hardware_concurrency": 24,
        "device_memory": 32,
        "max_touch_points": 0,
        "webdriver": false,
        "plugins": 5,
        "pdf_viewer": true,
        "ua_data": {
          "brands": [
            {
              "brand": "Not:A-Brand",
              "version": "8"
            },
            {
              "brand": "Chromium",
              "version": "156"
            },
            {
              "brand": "Microsoft Edge",
              "version": "156"
            }
          ],
          "mobile": false,
          "platform": "Linux",
          "architecture": "x86",
          "bitness": "64",
          "formFactors": [
            "Desktop"
          ],
          "fullVersionList": [
            {
              "brand": "Not:A-Brand",
              "version": "8.0.0.0"
            },
            {
              "brand": "Chromium",
              "version": "156.0.8078.12"
            },
            {
              "brand": "Microsoft Edge",
              "version": "156.0.4314.23"
            }
          ],
          "model": "",
          "platformVersion": "",
          "uaFullVersion": "156.0.4314.23",
          "wow64": false
        },
        "screen": "1280x720x1280x720x24",
        "window": {
          "outer": "1288x805",
          "inner": "1280x720",
          "dpr": 1
        },
        "timezone": "UTC",
        "locale": "en-US",
        "webgl": {
          "vendor": "Google Inc. (Google)",
          "renderer": "ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)",
          "version": "WebGL 2.0 (OpenGL ES 3.0 Chromium)"
        },
        "canvas_hash": "f5a94624",
        "webgpu": true,
        "chrome_object": true,
        "chrome_runtime": false,
        "notification_permission": "default",
        "notification_query": "prompt",
        "has_focus": true,
        "connection_api": true,
        "stack_read_by_debugger": false,
        "features": {
          "iterator_includes": true,
          "iterator_join": true,
          "iterator_zip": true,
          "fontface_width": true,
          "css_text_decoration_inset": false,
          "css_scroll_axis_lock": false,
          "websocket_options_bag": null,
          "camera_element": true,
          "topics_api": true,
          "protected_audience": true,
          "shared_storage": false,
          "attribution_reporting": false,
          "request_storage_access_for": false,
          "webhid": true,
          "private_aggregation": false,
          "css_margin_trim": true,
          "css_text_decoration_skip_spaces": true,
          "css_corner_shorthand": false,
          "css_symbols": true,
          "stream_append_html": false,
          "webtransport_reliability": false,
          "window_maximize": false,
          "canvas_srgb_linear": false,
          "policy_media_playback_while_not_visible": true,
          "css_random": true,
          "css_scroll_snap_pair": true,
          "fenced_frames": true,
          "compression_dictionary": true
        }
      },
      "page_main_world": null,
      "sannysoft": {
        "checks": 57,
        "failed": 1,
        "failed_names": [
          "WebGL Renderer"
        ],
        "passed": 30
      },
      "plain_http": {
        "final_url": "http://ip-api.com/json/?fields=status",
        "status": 200,
        "title": "",
        "loaded": true,
        "warning_page": false,
        "page_text": "{\"status\":\"success\"}"
      },
      "playwright": {
        "evaluate_in_main_world": true,
        "console_events": true,
        "init_script": true,
        "route": true,
        "screenshot": true,
        "pdf": true,
        "mobile_emulation": true,
        "tracing": true
      },
      "browser_version": "156.0.4314.23"
    },
    {
      "label": "Edge 155",
      "engine": "edge",
      "body": {
        "headless": false
      },
      "launch": {
        "browser": "edge",
        "resource_class": "linux_headful",
        "weight": 2,
        "launch_ms": 390,
        "connect_ms": 93,
        "example_ms": 1954,
        "peet_ms": 2263
      },
      "network": {
        "http_version": "h2",
        "ja4": "t13d1516h2_8daaf6152771_806a8c22fdea",
        "ja3_hash": "71c85c2e374d705167fab39e60b2e03e",
        "peetprint_hash": "8f568b2a409b82d0ec24cb84bf3bc3fc",
        "ciphers": 16,
        "extensions": 18,
        "akamai_h2": "1:65536;2:0;4:6291456;6:262144|15663105|0|m,a,s,p",
        "akamai_h2_hash": "52d84b11737d980aef856699f885ca86",
        "header_order": [
          "method",
          "authority",
          "scheme",
          "path",
          "sec-ch-ua",
          "sec-ch-ua-mobile",
          "sec-ch-ua-platform",
          "upgrade-insecure-requests",
          "user-agent",
          "accept",
          "sec-fetch-site",
          "sec-fetch-mode"
        ]
      },
      "page": {
        "user_agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/155.0.0.0 Safari/537.36 Edg/155.0.0.0",
        "platform": "Linux x86_64",
        "vendor": "Google Inc.",
        "languages": [
          "en-US",
          "en"
        ],
        "hardware_concurrency": 16,
        "device_memory": 32,
        "max_touch_points": 0,
        "webdriver": false,
        "plugins": 5,
        "pdf_viewer": true,
        "ua_data": {
          "brands": [
            {
              "brand": "Microsoft Edge",
              "version": "155"
            },
            {
              "brand": "Chromium",
              "version": "155"
            },
            {
              "brand": "Not(A:Brand",
              "version": "24"
            }
          ],
          "mobile": false,
          "platform": "Linux",
          "architecture": "x86",
          "bitness": "64",
          "formFactors": [
            "Desktop"
          ],
          "fullVersionList": [
            {
              "brand": "Microsoft Edge",
              "version": "155.0.4283.60"
            },
            {
              "brand": "Chromium",
              "version": "155.0.8059.80"
            },
            {
              "brand": "Not(A:Brand",
              "version": "24.0.0.0"
            }
          ],
          "model": "",
          "platformVersion": "",
          "uaFullVersion": "155.0.4283.60",
          "wow64": false
        },
        "screen": "1280x720x1280x720x24",
        "window": {
          "outer": "1288x805",
          "inner": "1280x720",
          "dpr": 1
        },
        "timezone": "UTC",
        "locale": "en-US",
        "webgl": {
          "vendor": "Google Inc. (Google)",
          "renderer": "ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)",
          "version": "WebGL 2.0 (OpenGL ES 3.0 Chromium)"
        },
        "canvas_hash": "f5a94624",
        "webgpu": true,
        "chrome_object": true,
        "chrome_runtime": false,
        "notification_permission": "default",
        "notification_query": "prompt",
        "has_focus": true,
        "connection_api": true,
        "stack_read_by_debugger": false,
        "features": {
          "iterator_includes": true,
          "iterator_join": true,
          "iterator_zip": true,
          "fontface_width": true,
          "css_text_decoration_inset": false,
          "css_scroll_axis_lock": false,
          "websocket_options_bag": null,
          "camera_element": true,
          "topics_api": true,
          "protected_audience": true,
          "shared_storage": false,
          "attribution_reporting": false,
          "request_storage_access_for": false,
          "webhid": true,
          "private_aggregation": false,
          "css_margin_trim": true,
          "css_text_decoration_skip_spaces": true,
          "css_corner_shorthand": false,
          "css_symbols": true,
          "stream_append_html": false,
          "webtransport_reliability": false,
          "window_maximize": false,
          "canvas_srgb_linear": false,
          "policy_media_playback_while_not_visible": true,
          "css_random": false,
          "css_scroll_snap_pair": false,
          "fenced_frames": true,
          "compression_dictionary": true
        }
      },
      "page_main_world": null,
      "sannysoft": {
        "checks": 57,
        "failed": 1,
        "failed_names": [
          "WebGL Renderer"
        ],
        "passed": 30
      },
      "plain_http": {
        "final_url": "http://ip-api.com/json/?fields=status",
        "status": 200,
        "title": "",
        "loaded": true,
        "warning_page": false,
        "page_text": "{\"status\":\"success\"}"
      },
      "playwright": {
        "evaluate_in_main_world": true,
        "console_events": true,
        "init_script": true,
        "route": true,
        "screenshot": true,
        "pdf": true,
        "mobile_emulation": true,
        "tracing": true
      },
      "browser_version": "155.0.4283.60"
    }
  ]
}

Bottom line

Edge 156 is a quiet release for scrapers: two new CSS features a page can test, a reordered client-hint brand list, and nothing new on the wire. Code that runs on Edge 155 needs no change.

To check your own script before 156 reaches stable, launch channel: "beta" next to stable and diff the output — which is what this page did.