Subagent effort
Subagents now run at the effort you ask for
- Agent tool
- takes an effort parameter
- Each subagent
- runs at the level you asked for
The Agent tool in Claude Code gained an effort parameter. When Claude hands work to a subagent, you can name an effort level, and that subagent runs at it.
Plugin install from a marketplace
>One command adds a marketplace and installs a plugin from it
- claude plugin install
- --marketplace <source>
- Policy
- the same checks as adding the marketplace yourself
Claude plugin install now takes a marketplace option. Claude Code adds that marketplace if needed, under the usual policy checks, then installs the plugin from it.
Security fixes
>Security: reads from network paths ask for permission again
- Network (UNC) paths
- hook approvals and auto mode no longer skip the prompt
- Sandboxed commands
- can no longer read staged /ultrareview uploads
- rm -rf on Windows
- an alternate spelling of the home folder counts as removing it
In a security fix, hook approvals and auto mode no longer skip the prompt for reads from network paths. Sandboxed commands can't read staged /ultrareview uploads, and Windows now recognizes a delete of your home folder under another spelling.
Sessions keep what you gave them
>Quitting no longer loses a session’s last messages
- Quitting
- the last messages of a session are kept
- Cloud sessions
- answers to permission prompts are no longer dropped
- Resume
- plan mode comes back when you resume a session
Quitting Claude Code no longer loses a session's last messages. Cloud sessions stop dropping your answers to permission prompts, and resuming a session now brings plan mode back.
Scheduled tasks fire
>Scheduled tasks and wakeups now fire when they should
- Saved tasks
- fire when created after /resume, /branch or /clear
- Background /loop
- keeps going after the session’s process restarts
- claude -p
- waits for background commands and scheduled wakeups
Saved scheduled tasks created after /resume, /branch or /clear now fire. A background session's /loop survives a process restart, and one-shot claude -p runs wait for background commands and scheduled wakeups.
Newer MCP protocol
>Local MCP servers now negotiate the newer protocol by default
- Every install
- protocol 2026-07-28, including Bedrock, Vertex and Foundry
- Slow servers
- remembered for 7 days and connected the older way
- Opt out
- an environment variable keeps the legacy handshake
Local MCP servers now negotiate the July protocol version by default, even on Bedrock, Vertex and Foundry. Servers that ignore it connect the older way, and an environment variable opts out.
No more silent empties
>Failures that looked like empty results now say so
- Grep and Glob
- an unreadable path no longer reports “no matches”
- PDF page lists
- Read errors instead of returning only the first range
- @-mentions over 256KB
- Claude is told the size and to read in portions
When Grep or Glob can't read their path, Claude now retries or tells you, instead of reporting no matches. PDF page lists return an error, and large mentioned files stop vanishing.
The full changelog
Every change is in the Claude Code changelog
CHANGELOG.md in anthropics/claude-code
Long bulleted replies also render faster. The full list is in the Claude Code changelog on GitHub.
