OpenCode v1.18.26 tolerates stale Claude 5 thinking blocks

Tools official 1 src. ~1 min

OpenCode v1.18.26 (Sep 1) makes Claude 5 sessions tolerate stale thinking blocks instead of failing after prompt or tool changes, lets Bedrock GPT-5.6 accept `none` reasoning effort, improves Bedrock reasoning/replay handling and tool-call timing, and asks for the Azure resource name directly during Azure CLI sign-in. It follows v1.18.24-25 (Aug 28) which added Microsoft Entra ID auth via Azure CLI.

Why it matters

Fixes a common Claude 5 session-breakage mode for self-hosted users

Importance: 2/5

Notable bug-fix release for self-hosted users

opencode release bug-fix amazon-bedrock

Sources

official opencode releases (v1.18.26)