1.0.0-beta.27

published 4 October 2026

• Added the mercury-docs skill, answering how to use Mercury from its own docs, and /verify, an adversarial check of the session's work
• Added review runs: an Agent launch that reads one commit and writes one report
• Added each sub-agent's token use beside its context in the crew view
• Added /export to a .json name for a JSON copy of the chat
• Added an OpenRouter routing policy in /config, on from the start
• Added a low-balance notice in /usage for an OpenRouter key
• Added vulcan status reporting an out-of-date Godot addon
• Overhauled Mneme, Mercury's memory system: on by default, your pinned rules in front of the model word for word, matching facts recalled as you work, and /memory showing the facts and the rules
• Fixed a resumed session losing the model it started with when none of its turns had been answered
• Fixed a Mercury window left open through an update losing its sends; it keeps its build, new sessions run on the new one, and mercury update says so
• Fixed mercury update on a Homebrew or npm install saying nothing about the background helper or open windows; --json carries both
• Fixed an update leaving the background helper on the old build in silence; a helper of another build is named on screen and in /health, and a restart moves it once its chats finish
• Fixed a background helper that had handed over to a newer one staying up after its last chat, and an idle helper of the previous release staying up after an update
• Fixed two Mercury windows starting the background helper at once leaving an older helper's chats unreachable
• Fixed mercury daemon restart refusing while an older helper still hosts chats; it waits and names the helper and its chat count
• Fixed mercury daemon stop from inside a chat on an older helper ending that chat; its count covers every helper's chats
• Fixed mercury daemon run --help starting a helper instead of showing the page
• Fixed the --help pages using Mercury's own names before explaining them; every page gives the plain words first and explains the permission modes, the budget's unit, the tool-rule shape and the settings sources where they appear
• Fixed an answer that ends before it starts failing the turn; Mercury retries three times with a short wait and the spinner counts the attempts
• Fixed a session opened while a newer background helper was taking over answering "unknown"
• Fixed a session that ran a short slash command or /clear through the background helper staying marked busy
• Fixed a saved default permission mode being read differently by each way of starting a session; the Boot face and the Concourse open the posture a direct launch would, and an agent's permission mode never exceeds the session's consent
• Fixed Shift+Tab stepping through Strategy mode; Apollo Mode takes that stop and the ◇ mark
• Fixed editor interviews not delivering answers, including in Apollo Mode, and a cancelled editor prompt needing a second cancel
• Fixed editor sessions waiting forever after a host and runner disagree on their protocol
• Fixed a session reopened from an editor over ACP coming back in the default permission mode instead of the one it was left in
• Fixed sessions staying busy after a host's connection is refused, waiting forever for a host that never answers, and a refused prompt reported as accepted
• Fixed a failed turn reporting the wrong turn number, a shell turn losing its output or reporting completion after an interruption, and tool progress attributed to the wrong call
• Fixed duplicate start and finish updates during compaction, and missing completion updates when automatic compaction fails or is cancelled
• Fixed a resumed session seeing only one result of a parallel tool batch
• Fixed an image whose size cannot be read being sent in a request over the many-image limit; it is left out with a one-line note and the transcript keeps it
• Fixed a hook whose matcher is * never running
• Fixed a misspelt settings key doing nothing in silence; the health check, the chat's settings notice and a headless run's start name it, and /config shows only settings Mercury reads
• Fixed an invalid guardrails.mode being accepted; the answer names the modes Mercury has
• Fixed mercury run --help promising a title or a picker for --resume; run takes a session id or a transcript path
• Fixed --log-file leaving a latest link beside the file it was given
• Fixed mercury update on a source checkout downloading a release; the check and the status name the rebuild and the update refuses first
• Fixed the first run preselecting "yes, set it up" on the Terminal keys step; it is opt-in, and a provider key in the environment skips the sign-in step
• Fixed the trust-this-folder screen and the first-run guardrails not saying plainly what trusting a folder means
• Fixed a WebFetch(domain:*.example.com) rule not covering every host under the domain
• Fixed a rule's decision reading differently in each place it appears; it is one sentence everywhere, naming the rule and its settings file, with your reason on the end
• Fixed a grep flag reaching the Grep tool being refused without naming the Mercury parameter that does the same
• Fixed mercury-scout writing through tools other than the shell; the scout gets only the tools that read, and a review run only the tools it can use
• Fixed a failed language-server call saying nothing useful; it says what happened and what helps, and the same failing call is answered three times, then refused for the session
• Fixed the LSP tool refusing arguments it advertises; a documented key an operation does not use is ignored
• Fixed memory: a rule you ask Mercury to remember is pinned at once and the next chat follows it, a fact or rule survives a model filling every optional field, and /memory lists the topics and opens each page
• Fixed memory search answering only an exact phrase; Recall answers the words of a question, a short fact made of them first
• Fixed a command run from a Mercury session inheriting the session's own config home and launcher variables
• Fixed health processes counting another Mercury build's processes as this one's, and a fresh home's health check calling Mercury's own helper record a foreign tool's
• Fixed the Boot face's health chip not showing the certificate from your last /health run
• Fixed a workflow run vanishing from Inspect, the telemetry rail and the /workflows board after the session's shell changed folder
• Fixed worker file leases: a worker keeps its own, and a project's handoff files can be leased beside source files
• Fixed a stopped workflow losing its workers' tool-use counts and its receipts not naming the run state
• Fixed Read clipping an oversized row silently; the clipped part is marked
• Fixed the crew tools telling a session with no crew that its crew does not exist; they say it is not in a crew
• Fixed a local crewmate's context staying blank after a reply
• Fixed every sub-agent turn being recorded twice in its transcript
• Fixed a sub-agent's answer to a crew-view message also landing in the lead's inbox
• Fixed mcp get, mcp list, mcp add and the /mcp screen printing a server's secrets in full
• Fixed an exported chat carrying API keys and tokens in full; they are masked in the text and the JSON
• Fixed a run's rows showing zero usage on Grok, DeepSeek, Kimi, GLM and other OpenAI-compatible models
• Fixed a resumed mercury run reporting API time and cost from earlier runs
• Fixed the reasoning-token count missing from Grok and other OpenAI-compatible results
• Fixed the Patience setting being ignored on Grok, Kimi, DeepSeek, Gemini, Muse, OpenRouter and Hugging Face
• Fixed a temporary capacity or network error from OpenAI, Grok or OpenRouter ending the turn instead of retrying, and a network error ending a Kimi, DeepSeek or other compatible-provider turn
• Fixed overloaded sessions sending their retries in lockstep
• Fixed a slow model's turn being cut off after two minutes of silence; the wait is six minutes, twelve in patient mode
• Fixed a settings popup hiding the session header while open
• Fixed the Kimi 5-hour usage window reading 0% in /usage while requests were being spent
• Fixed health reading FAULT on a home whose only sign-in is OpenRouter or another provider; its verdict follows the provider the session will use
• Fixed health's advice to start the background helper naming the bare word mercury when the one on your PATH is another install; it names the command for this install
• Fixed a run with its output redirected to a file being recorded as an interactive start that never reached its screen
• Fixed health leaving gate-tree folders in the temp directory when a check runs out of time or the process exits
• Fixed memory bringing in topics and facts on a filler word such as and, the or want, and a project document on a word inside its file name
• Fixed the screen saying memorys and directorys