Wasmtime meeting notes from 2021-11-11.
### Attendees
+- WGR
+- cfallin
+- acrichton
+- tschneidereit
+- bjorn3
+- abrown
+- fitzgen
+- Will W
+- jlbirch
+
### Notes
+
+* Till: milestone to report: Fastly recently hit 1 trillian Wasm instantiations; no
+ operational issues at scale (using Lucet with Cranelift)
+ - Close to switching over to Wasmtime
+ - Results from security assessment on integration of Wasmtime with Fastly's
+ environment; no issues found
+
+ - jlbirch: how will the switchover work?
+ - Till: Not a prolonged period with two separate runtimes
+ - Till: will update the group here once it's in production! In testing, we're
+ seeing significant performance gains, excited and optimistic.
+
+* Till: looking at optimizing the Python embedding, more info soon
+
+* abrown: back after two months (welcome!), what are we excited about and
+ looking forward to in the near future?
+ - Till: Alex put together release infra (automated), RFC for 1.0 release.
+ - before we do this, maybe a once-over on the documentation would be good
+ - also planning around announcement/publicity
+ - Till: Fastly has an intern working on wasm-mutate
+ - fitzgen: this is for fuzzing; taking a valid Wasm module and tweaking it
+ in some way to generate another case, for custom mutator hook
+ - cfallin: ISLE DSL in Cranelift
+ - WASI: adopted new format for the IDL, renamed it from witx. Better, more
+ approachable developer experience. Dan working on applying all of this to
+ wasi-libc, wasi-sdk, to make sure we have everything needed.
+
+ - Till: fuzzing?
+ - Alex: SIMD disabled until fuzzbugs fixed
+ - spec interpreter fuzzing disabled for now due to timeouts
+ - V8 differential fuzzing
+ - cfallin: alternate way of using spec interpeter for individual
+ instruction semantics possible
+ - Till: would be good to take stock of SIMD status eventually and see if we
+ might want to enable it
+ - Andrew: relaxed SIMD, flexible vectors?
+ - Alex: relaxed SIMD parsing from Yury at Mozilla
+ - cfallin: flexible vectors in progress by Sam Parker at ARM
+
