Toolchain and CI:
- Go 1.27 (go directive 1.27.0, CI 1.27.3)
- actions/checkout v7, actions/setup-go v7
- golangci-lint v2.15.0, gosec v2.30.0
- Dockerfile: drop obsolete -a -installsuffix cgo build flags
Go modules:
- anthropic-sdk-go v1.71.0 -> v2.3.0 (new /v2 module path, API version
2026-10-21); go-telegram/bot v1.27.0; x/sync v0.24.0; indirects to latest
- BetaMessageParam is now a per-role union: build assistant turns with
OfAssistant and read content through the role in the cache helper
- Pass the Anthropic API key only when set: v2 sends an explicitly passed
credential as is, so an empty key became an empty bearer token instead of
falling back to the SDK's default credential chain as v1 did
API 2026-10-21 / deprecations:
- Stop sending temperature (rejected on every model); the config key is
still parsed and a startup notice flags it
- Name refusals in the empty-response error instead of reporting an
unexpected response format
- ElevenLabs STT: scribe_v1 (deprecated) -> scribe_v2
- Template config: claude-haiku-5-5 with effort low, temperature removed
Docs: replace the unsupported `go get -u` install step, document the ignored
temperature key, default-on thinking, and per-model effort defaults.
HugeFrog24