Profiles and containers: the profile's files, what a container keeps apart, and what is left
Session restore: what comes back, where the file lives, and the --profile option
Content Security Policy: what is enforced, where it is judged, and what is left
Architecture: the tree-walking evaluator is gone; the machine runs every body Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
Scripting: the bytecode machine runs everything; test262 40,167
The Linux window: the display's scale, touch, the input method, the shell's own frame
Networking: revocation lists and the hello's extension rules on Linux
Cosmetic filtering: what the lists hide, and what is left
The bindings generator and the idl folder
CFF outlines: the reader, what it covers, the fonts it opens
SVG: the subset, its limits, the replaced-box rules, the score
Async generators are written; test262 40121 / 41791 Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
for await is written; test262 36039 / 41791 Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
BigInt is written: the library, the two typed-array kinds, test262 35631 / 41791 Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
Content blocking: the lists, the folder, the option, what is not applied Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
The new-tab page, the theme's new-tab section, advance with a count Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
The fuzz build is instrumented end to end Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
BMP and ICO in the image table, the tab's icon, tab-icon-size, test_bmp Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
Scripting: module scripts on the page run How a script runs describes a module script's fetch, its deferral in document order, an inline module's base, and what a failure in a graph does; Not written yet no longer lists module scripts on the page, and names import maps as the reason a bare specifier fails. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
Networking: the Linux client speaks TLS 1.2 as well The TLS section says what the client negotiates now, in 1.3 and, for a server with nothing newer, in 1.2: both AEADs, both groups, RSA or ECDSA, the extended master secret, and never renegotiation; that CRL fetching is what still keeps it short of the badssl gate; the two environment variables that narrow a hello; and the five seconds a connection gives each address. Not written yet no longer says a TLS-1.2-only or AES-only host cannot load on Linux, and names what is still missing there: revocation and session resumption. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
The Sashfold 100 is rendered by the Linux build as well The Sashfold 100 page and the Measurements table say the hundred are rendered twice, on a Windows runner and on a Linux runner, published side by side and linking each other; the corpus script's three new options are listed; and the note that a page arrives blank without scripts is replaced by what happens now, its scripts running for three seconds of virtual time before the picture is taken. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
Measurements: test262 34341 / 41714 after top-level await landed Scripting and Not written yet no longer list top-level await: a module body with one runs as an async function and its importers wait for it. Architecture gains a modules paragraph and drops modules and Proxy from its not-written line, which the previous rewrite had left behind; what the bytecode tier still refuses, an await or yield inside a class heritage or a computed key, is named in both places. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
The module system, Proxy, and the new conformance figure Measurements carries 34135 of 41714 over 85 directories, with Proxy and Reflect joined to the score as directories of their own. Scripting and Not written yet say what the module system does now — records, their linking and their evaluation, live bindings, the namespace object, dynamic import() and import.meta — and what still waits on it: top-level await, and module scripts on the page, which a realm cannot run yet because it installs no module loader. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011ebXZs43Ks9pd5MerR62rG
Measurements: test262 33178 / 41250 after module records, linking and evaluation landed
Measurements: test262 32970 / 41250 after the Module goal landed in the parser
fetch and XMLHttpRequest: Scripting, Networking, Not written yet Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EkzH8EAowXWrPXkiKyR9f6
Scripting: TextEncoder, TextDecoder, Blob, File, getRandomValues Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EkzH8EAowXWrPXkiKyR9f6
Typed arrays: Architecture, Scripting, Measurements, Not written yet Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EkzH8EAowXWrPXkiKyR9f6
The Linux window: Running Sashfold, Building, Architecture, Networking, Not written yet Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EkzH8EAowXWrPXkiKyR9f6
Generators and async functions: the engine pages and the measurements Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EkzH8EAowXWrPXkiKyR9f6