Verifiers v0.1.12.dev4 Release Notes

Date: 04/13/2026

Highlights since v0.1.12.dev3

• Fixed CliAgentEnv getting permanently stuck when a Prime tunnel dies server-side.
• Simplified RLM message transcript handling.

Changes included in v0.1.12.dev4 (since v0.1.12.dev3)

Features and enhancements

• feat: detect server-side tunnel death and auto-recreate in CliAgentEnv (#1127)
• refactor: simplify RLM message transcript handling (#1116)

Fixes and maintenance

• fix: raise AgentError when agent crashes before any LLM call (exit_code!=0 with empty trajectory) (#1127)
• fix: bump prime-tunnel>=0.1.6 for check_registered() support (#1127)
• docs: prefix prime eval models (#1125)

Full Changelog: v0.1.12.dev3...v0.1.12.dev4