OpenCode 1.18.23

Released Aug 25, 2026 · official source

Safe to upgrade? Looks safe

2 bug/regression-labelled issues opened in the 70h after release (0 regression-flagged, 0 mention v1.18.23 in title). Normalised score 2.1.

Issues counted

#45502 console: Go usage breakdown shows duplicate model rows (bug, zen)
#45099 core: session shell output bypasses tool limits and strands sessions (bug, core, 2.0)

How this is computed

Changelog: v1.18.23

Core

Bugfixes

Fixed Cloudflare AI Gateway routing for third-party providers so non-Workers models work through the gateway's REST API. (@superhighfives)
Fixed Anthropic models through Cloudflare AI Gateway by converting dotted model IDs like claude-haiku-4.5 to the dashed slug Anthropic expects. (@superhighfives)
Fixed parent session IDs being sent in request headers for session-aware providers.

TUI

Bugfixes

Fixed GitHub auth for immutable OIDC subject tokens.

Thank you to 1 community contributor:

@superhighfives:
fix(provider): send Anthropic's dashed native slug through the AI Gateway (#44281)
fix(provider): route non-native Cloudflare AI Gateway providers via the REST API (#44828)