Gemini CLI adds 2.5 Flash Lite, @{path}

Google’s Gemini CLI documentation was updated this week to show a new stable release, v0.42.0, and to list Gemini 2.5 Flash Lite among the tool’s supported capabilities. The Gemini CLI release notes page says v0.42.0 was released on May 12, 2026, and is the recommended stable channel for most users. The same documentation set now describes a new `@{path}` syntax that lets developers inject local file or directory content into custom commands. (geminicli.com) GitHub release materials for the project also show a fix tied to Cloud Shell and Vertex AI usage. (geminicli.com) In the v0.42.0 release stream, one listed change says the CLI no longer overrides `GOOGLE_CLOUD_PROJECT` in Cloud Shell when users are authenticating through Vertex AI. Gemini CLI is published as an open-source project under Google’s `google-gemini` GitHub organization. ### Which version is now the stable Gemini CLI release? Gemini CLI’s release notes page lists v0.42.0 as the current stable release and dates it May 12, 2026. (geminicli.com) The page says the stable channel is the recommended release track for general use, alongside separate preview and nightly channels. The project’s GitHub releases page also shows activity beyond that build, including a v0.43.0-preview.0 pre-release published later, indicating v0.42.0 remains the latest stable build while newer preview work continues in parallel. (github.com) ### What does the new `@{path}` syntax do? Gemini CLI documentation for the latest stable release says developers can use `@{path}` to embed local file or directory content in custom commands. That adds a direct way to pass project context from the local filesystem into reusable command flows inside the CLI. (geminicli.com) The feature fits the product’s existing positioning around local project context. Gemini CLI’s main documentation says the terminal tool is designed to help users understand code, automate tasks and build workflows with local project context. (github.com) ### Where does Gemini 2.5 Flash Lite show up in the product? Gemini CLI’s core documentation says internal utility calls that use `gemini-2.5-flash-lite` can fall back to `gemini-2.5-flash` and `gemini-2.5-pro` when quota is exhausted. That language indicates Flash Lite is already wired into internal model-routing behavior in the CLI stack. (geminicli.com) The documentation update highlighted in the changelog now surfaces that support more directly for users following release notes. Google has also continued to update default model settings elsewhere in the product, with the v0.42.0 announcement noting that Gemma 4 models were enabled by default through the Gemini API for all users. (geminicli.com) ### What was fixed for Cloud Shell and Vertex AI users? GitHub release notes for Gemini CLI include a change described as a fix preventing the CLI from overriding `GOOGLE_CLOUD_PROJECT` in Cloud Shell when Vertex AI is in use. (geminicli.com) That matters because Gemini CLI’s configuration docs say Cloud Shell can default that variable to a special project allocated for Cloud Shell users. A GitHub issue filed in April described that exact failure mode. The user said Vertex AI requests in Cloud Shell were being sent against a Google-managed Cloud Shell project rather than the user’s configured project, causing permission errors. (geminicli.com) ### Where can developers track the next changes? Gemini CLI’s release notes page says the project maintains stable, preview and nightly channels, and links users to GitHub for the full changelog. The GitHub releases page already shows preview activity beyond v0.42.0, while the documentation site continues to update the stable release page separately. (github.com) Google’s installation guide says Gemini CLI comes pre-installed on Cloud Shell and Cloud Workstations, which means the next visible changes for many users may arrive through those environments as the release channels advance. (github.com) (geminicli.com 1) (geminicli.com 2)