Release Notes
Added
- LLM cassettes — record/replay for deterministic, keyless testing & demos. A new
sema-llm::cassette layer records real LLM responses to an NDJSON tape once, then
replays them deterministically forever — no API key, no network. llm/complete,
llm/chat, llm/extract, agent loops (agent/run, each turn keyed
independently), streaming (llm/stream, the chunk sequence is recorded and
replayed in order) and embeddings (llm/embed, vectors recorded and replayed)
are all covered. Modes
:auto / :replay / :record; a :replay miss is a hard error that surfaces
prompt drift. Surface: (llm/with-cassette path opts thunk),
llm/cassette-load/-save/-eject, and SEMA_LLM_CASSETTE /
SEMA_LLM_CASSETTE_MODE for CI. Folds with the rest of the runtime: it sits below
the OpenTelemetry span + response cache + cost accounting and above the provider, so
a replay still emits its chat span and reports its recorded usage (distinct
from a cache hit's zero usage), and with-cassette disables the response cache for
its scope. The tape stores only the response keyed by a request hash — no prompt
text, key, or header touches disk (redaction by construction). Docs:
website/docs/llm/cassettes.md.
CI
- Publish-list guard.
scripts/check-publish-list.sh (run in the release
verify gate + make check-publish-list) fails if a publishable workspace crate is
missing from publish.yml's order — preventing the half-published release that hit
1.22.0 when the new sema-otel crate wasn't in the list.
- The two publishes now share a single
verify gate (was one full suite per
registry), CI uses Swatinem/rust-cache, and the per-crate publish sleeps are
trimmed (cargo already waits for index propagation).
Install sema-lang 1.23.0
Install prebuilt binaries via shell script
curl --proto '=https' --tlsv1.2 -LsSf https://github.com/HelgeSverre/sema/releases/download/v1.23.0/sema-lang-installer.sh | sh
Install prebuilt binaries via powershell script
powershell -ExecutionPolicy Bypass -c "irm https://github.com/HelgeSverre/sema/releases/download/v1.23.0/sema-lang-installer.ps1 | iex"
Install prebuilt binaries via Homebrew
brew install helgesverre/tap/sema-lang
Download sema-lang 1.23.0
