Track updates to browser support information
This page separates changes to MDN data, Web Platform Baseline information, ControlCurrent's feature definitions, and browser release records. A data correction does not necessarily mean the browser itself changed on that date.
24 recorded events
Update timeline
Current sources: MDN BCD 8.0.8 and WebDX 3.34.2
- browser release added
Firefox 156 was added to the selected BCD release metadata.
- browser release added
Firefox for Android 156 was added to the selected BCD release metadata.
- selected path added
The selected BCD path http.headers.Clear-Site-Data was added.
http.headers.Clear-Site-Data - selected path added
The selected BCD path http.headers.Strict-Transport-Security was added.
http.headers.Strict-Transport-Security - selected path added
The selected BCD path http.headers.Origin-Agent-Cluster was added.
http.headers.Origin-Agent-Cluster - selected path added
The selected BCD path http.headers.Content-Security-Policy.form-action was added.
http.headers.Content-Security-Policy.form-action - selected path added
The selected BCD path http.headers.Set-Cookie.HttpOnly was added.
http.headers.Set-Cookie.HttpOnly - selected path added
The selected BCD path api.CredentialsContainer.get.publicKey_option.extensions.prf was added.
api.CredentialsContainer.get.publicKey_option.extensions.prf - selected path added
The selected BCD path http.headers.X-Content-Type-Options was added.
http.headers.X-Content-Type-Options - selected path added
The selected BCD path http.headers.Content-Security-Policy.sandbox was added.
http.headers.Content-Security-Policy.sandbox - control mapping changed
The control catalogue mapping changed from 2.1.0 to 2.2.0.
- baseline established
ControlCurrent established its first selected BCD baseline at version 8.0.7.
- selected path added
The selected BCD path http.headers.Cross-Origin-Embedder-Policy.credentialless was added.
http.headers.Cross-Origin-Embedder-Policy.credentialless - control mapping changed
The control catalogue mapping changed from 1.0.0 to 2.0.0.
- selected path added
The selected BCD path http.headers.Integrity-Policy was added.
http.headers.Integrity-Policy - selected path added
The selected BCD path api.PublicKeyCredential.isUserVerifyingPlatformAuthenticatorAvailable_static was added.
api.PublicKeyCredential.isUserVerifyingPlatformAuthenticatorAvailable_static - control mapping changed
The control catalogue mapping changed from 2.0.0 to 2.1.0.
- selected path added
The selected BCD path http.headers.Set-Cookie.host_secure_prefixes was added.
http.headers.Set-Cookie.host_secure_prefixes - selected path added
The selected BCD path http.headers.Integrity-Policy-Report-Only was added.
http.headers.Integrity-Policy-Report-Only - selected path added
The selected BCD path http.headers.Set-Cookie.http_host-http_prefixes was added.
http.headers.Set-Cookie.http_host-http_prefixes - selected path added
The selected BCD path http.headers.Content-Security-Policy.base-uri was added.
http.headers.Content-Security-Policy.base-uri - selected path added
The selected BCD path http.headers.Content-Security-Policy.frame-ancestors was added.
http.headers.Content-Security-Policy.frame-ancestors - selected path added
The selected BCD path api.CredentialsContainer.create.publicKey_option.extensions.prf was added.
api.CredentialsContainer.create.publicKey_option.extensions.prf - selected path added
The selected BCD path http.headers.Content-Security-Policy.upgrade-insecure-requests was added.
http.headers.Content-Security-Policy.upgrade-insecure-requests
The timeline starts when ControlCurrent began retaining this data. It does not invent earlier changes from source versions the project never stored and compared.
Data versions used by the site
Reviewed source versions
Each row records the exact browser-data version, feature-data version, catalogue version, and item counts used to build the site.
| BCD source date | BCD | WebDX | Catalogue | Controls | Paths | Baseline links | Associated events |
|---|---|---|---|---|---|---|---|
| 24 July 2026 | 8.0.8 | 3.34.2 | 2.2.0 | 30 | 36 | 28 | 2 |
| 17 July 2026 | 8.0.7 | 3.34.1 | 2.2.0 | 30 | 36 | 28 | 3 |
| 17 July 2026 | 8.0.7 | 3.34.1 | 2.1.0 | 29 | 34 | 26 | 2 |
| 17 July 2026 | 8.0.7 | 3.34.1 | 2.0.0 | 29 | 33 | 25 | 17 |
The MDN data date comes from the source package. It is not the date a reviewer ran ControlCurrent, and it cannot recreate versions the project never stored.