Come along and meet us at FOSDEM 2026 – we’re speaking there too!
Servo 0.0.4 and our December nightly builds now support multiple windows (@mrobinson, @mukilan, #40927, #41235, #41144)! This builds on features that landed in Servo’s embedding API last month. We’ve also landed support for several web platform features, both old and new:
Note: due to a known issue, servoshell on macOS may not be able to directly open new windows, depending on your system settings.
For better compatibility with older web content, we now support vendor-prefixed CSS properties like ‘-moz-transform’ (@mrobinson, #41350), as well as window.clientInformation (@Taym95, #41111).
We’ve continued shipping the SubtleCrypto API, with full support for ChaCha20-Poly1305, RSA-OAEP, RSA-PSS, and RSASSA-PKCS1-v1_5 (see below), plus importKey() for ML-KEM (@kkoyung, #41585) and several other improvements (@kkoyung, @PaulTreitel, @danilopedraza, #41180, #41395, #41428, #41442, #41472, #41544, #41563, #41587, #41039, #41292):
When using servoshell on Windows, you can now see --help and log output, as long as servoshell was started in a console (@jschwe, #40961).
Servo diagnostics options are now accessible in servoshell via the SERVO_DIAGNOSTICS environment variable (@atbrakhi, #41013), in addition to the usual -Z / --debug= arguments.
Servo’s devtools now partially support the Network > Security tab (@jiang1997, #40567), allowing you to inspect some of the TLS details of your requests. We’ve also made it compatible with Firefox 145 (@eerii, #41087), and use fewer IPC resources (@mrobinson, #41161).
We’ve fixed rendering bugs related to ‘float’, ‘order’, ‘max-width’, ‘max-height’, ‘:link’ selectors,
Servo now fires ‘toggle’ events on
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