Source Intelligence
Sweep 28 Aug 2026 ยท 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

One change

Telemetry and egress

third-party/claude-desktop/telemetry

first seen The page's own history The capture it came from

Nearest release: v2.1.235, published 9 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

third-party/claude-desktop/telemetry Changed · +37 / -23 lines

from line 133
 
 ### Always required
 
-| Host                  | Purpose                                                                                                                                                                                                                                                                                                         |
-| --------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| `downloads.claude.ai` | VM workspace bundle and Claude CLI binary, fetched at session start. **Without this, Cowork sessions cannot start**, unless the app was installed with the [offline installer variant](/docs/third-party/claude-desktop/installation#offline-installation), which includes both components in the installer package. |
+| Host                  | Purpose                                                             |
+| --------------------- | ------------------------------------------------------------------- |
+| `downloads.claude.ai` | VM workspace bundle and Claude CLI binary, fetched at session start |
 
+Without this host reachable, Cowork sessions cannot start, unless the app was installed with the [offline installer variant](/docs/third-party/claude-desktop/installation#offline-installation), which includes both components in the installer package.
+
 ### Inference provider
 
 The host(s) for your configured provider. These carry conversation content.
from line 183
 
 ### Auto-updates (`disableAutoUpdates: false`)
 
-| Host                  | Purpose                                  |
-| --------------------- | ---------------------------------------- |
-| `claude.ai`           | Update feed                              |
-| `api.anthropic.com`   | Update feed                              |
-| `downloads.claude.ai` | Update binaries (already required above) |
+| Host                  | Purpose                                                            |
+| --------------------- | ------------------------------------------------------------------ |
+| `claude.ai`           | Update feed                                                        |
+| `api.anthropic.com`   | Update feed (releases.claude.com when updateViaUpdatesHost is set) |
+| `downloads.claude.ai` | Update binaries                                                    |
 
 With [`updateViaUpdatesHost`](/docs/third-party/claude-desktop/configuration#updateviaupdateshost) set to `true`, the app reads the update feed from `releases.claude.com` instead of `claude.ai` and `api.anthropic.com`, so those two hosts are no longer needed for updates. Update binaries still come from `downloads.claude.ai`.
 
 ### Essential telemetry (`disableEssentialTelemetry: false`)
 
-| Host                               | Purpose                                                                                         |
-| ---------------------------------- | ----------------------------------------------------------------------------------------------- |
-| `sentry.io`                        | Crash and error reporting (apex; some firewalls don't match it under `*.sentry.io`)             |
-| `*.sentry.io`                      | Crash and error reporting                                                                       |
-| `*.ingest.us.sentry.io`            | Crash and error reporting (listed separately for firewalls that match wildcards one label deep) |
-| `browser-intake-us5-datadoghq.com` | Performance timing. The configuration window lists additional regional Datadog intake hosts.    |
+| Host                               | Purpose                   |
+| ---------------------------------- | ------------------------- |
+| `*.sentry.io`                      | Crash and error reporting |
+| `*.ingest.us.sentry.io`            | Crash and error reporting |
+| `sentry.io`                        | Crash and error reporting |
+| `browser-intake-datadoghq.com`     | Performance timing        |
+| `browser-intake-us3-datadoghq.com` | Performance timing        |
+| `browser-intake-us5-datadoghq.com` | Performance timing        |
+| `browser-intake-ap1-datadoghq.com` | Performance timing        |
+| `browser-intake-ap2-datadoghq.com` | Performance timing        |
+| `browser-intake-datadoghq.eu`      | Performance timing        |
+| `browser-intake-ddog-gov.com`      | Performance timing        |
 
+The `sentry.io` apex is listed alongside the wildcards because some firewalls don't match it under `*.sentry.io`, and `*.ingest.us.sentry.io` is listed separately for firewalls that match wildcards one label deep.
+
 ### Non-essential telemetry (`disableNonessentialTelemetry: false`)
 
 | Host                  | Purpose                                                         |
 | --------------------- | --------------------------------------------------------------- |
 | `a-cdn.anthropic.com` | Analytics SDK                                                   |
-| `api.anthropic.com`   | Claude Code usage telemetry, sent from inside the agent sandbox |
 | `a-api.anthropic.com` | Analytics events                                                |
 | `claude.ai`           | Analytics events                                                |
+| `api.anthropic.com`   | Claude Code usage telemetry, sent from inside the agent sandbox |
 
 ### Non-essential services (`disableNonessentialServices: false`)
 
-| Host                                                               | Purpose                                                                                                                                                                                                      |
-| ------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
-| `api.anthropic.com`                                                | MCP connector directory                                                                                                                                                                                      |
-| `www.claudeusercontent.com`                                        | Artifact preview iframe                                                                                                                                                                                      |
-| `*.claudemcpcontent.com`                                           | [MCP Apps](/docs/connectors/building/mcp-apps/getting-started), the interactive widgets connectors can render. Each widget loads in a sandboxed iframe on its own generated subdomain, so allowlist the wildcard. |
-| `assets.claude.ai`                                                 | Fonts loaded by MCP App widget iframes                                                                                                                                                                       |
-| `cdnjs.cloudflare.com`, `cdn.jsdelivr.net`, `fonts.googleapis.com` | Artifact preview asset CDNs                                                                                                                                                                                  |
-| `www.google.com`, `*.gstatic.com`                                  | Connector favicons                                                                                                                                                                                           |
+| Host                        | Purpose                                |
+| --------------------------- | -------------------------------------- |
+| `www.google.com`            | Connector favicons                     |
+| `*.gstatic.com`             | Connector favicons                     |
+| `www.claudeusercontent.com` | Artifact preview iframe                |
+| `cdnjs.cloudflare.com`      | Artifact preview asset CDNs            |
+| `fonts.googleapis.com`      | Artifact preview asset CDNs            |
+| `cdn.jsdelivr.net`          | Artifact preview asset CDNs            |
+| `*.claudemcpcontent.com`    | MCP App widget iframe                  |
+| `assets.claude.ai`          | Fonts loaded by MCP App widget iframes |
+
+`*.claudemcpcontent.com` serves [MCP Apps](/docs/connectors/building/mcp-apps/getting-started), the interactive widgets connectors can render. Each widget loads in a sandboxed iframe on its own generated subdomain, so allowlist the wildcard.
 
 ### Optional features