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P4 CLI Documentation | 2025.2

# What’s new in P4 Server 2023.1

Released: May 2023

For a complete list of what’s new in this release, see the Release notes and What’s new in P4 administration in the P4 Server Administration Documentation.

## Parallel checkpoint

Support for parallel checkpoint and multifile options. See the `-p`, `-m`, -N `numberOfThreads` options for the `p4 admin checkpoint` command.

## System resource monitoring

To enhance performance tuning and provide system resource monitoring, twelve `sys.pressure.*` configurables have been added for system resource monitoring, starting with sys.pressure.max.pause.time. Additionally, logs now include the amount of time a command has spent in the paused state. See Paused state in P4LOG. The system resource monitoring feature is described in detail in Performance tuning > System resources in the P4 Server Administration Documentation.

## Virtual file service

Support for P4 Virtual File Service (P4 VFS), including support for alternative sync agents that update the state of virtual file service providers. See the `[no]altsync` option in p4 client, the P4ALTSYNC environment variable, and the P4 Virtual File Service (P4 VFS) Documentation.

## Various

- You have the option of ensuring that DVCS pushes and fetches retain the existing change numbers by setting the dm.fetch.preservechangenumbers configurable. (See P4 Server Administration Documentation.)

- The `p4 sizes -C` option reports what the filesizes would be if written with the current client connection.

- The `-m max` option of p4 integrated allows you to specify how many integrations are listed.

- p4 topology allows the user to mark the Server record as moved with the `-m` option, and accepts the destination server address and the server id to delete the record with the `-D` option.

- Content distribution provides a way to push a subset of content from a source server to one or more target servers so that authorized users can access that content. See distribution-server in the Services: field of the p4 server topic.

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