dac upgrade

Upgrade the DAC CLI in place to the latest release.

dac upgrade [tag] [flags]

dac upgrade re-runs the official install script to replace the current binary with the latest release on the same channel. The channel is inferred from the running binary's version, so stable installs stay on stable and edge installs stay on edge.

dac update is an alias.

Skill refresh

After the new binary is installed, dac upgrade refreshes your project's bundled agent skills to match it: any skill already installed in the current project (under .claude/skills/) whose bundled version is now newer is updated in place, and a one-line notice reports what changed.

Updated the create-dashboard skill to the latest version (v2 -> v3). Restart your agent session to pick it up.

This runs from the newly installed binary and only touches skills that are already installed — it never installs new skills and never creates project directories. If you run dac upgrade outside a DAC project, nothing is refreshed. The refresh is best-effort: a failure never fails the upgrade. See dac skills for manual control.

Flags

Flag	Type	Default	Description
--channel	string	inferred from current version	Release channel to install from (stable or edge)
--bindir	string	directory of the current binary	Directory to install into

Examples

# Upgrade to the latest release on the current channel
dac upgrade

# Switch to the edge channel
dac upgrade --channel edge

# Pin to a specific version
dac upgrade v0.1.0

# Install into a different directory (may require sudo)
dac upgrade --bindir /usr/local/bin

Update Notifications

DAC checks GitHub once per day for newer releases on the channel you installed from. When one is available, a one-line notice is printed to stderr after the command finishes:

dac v0.2.0 available (current: v0.1.0). Run `dac upgrade`.

The notice is skipped when stderr is not a terminal, so scripts and CI logs stay clean. The check itself runs in the background and never blocks the command path.

To disable the check entirely:

export DAC_NO_UPDATE_CHECK=1
# or the industry-standard:
export DO_NOT_TRACK=1

The check is also disabled for dev and test-* builds.