Comparison between Mercurial and PureCM

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SCM feature:	Mercurial	PureCM	Add to comparison: +CVS +AccuRev +Aegis +AllChange +Arch +Bazaar +BitKeeper +ClearCase +CM+ +CMSynergy +Co-Op +Darcs +Git +LibreSource Synchronizer +Monotone +OpenCM +Perforce +SourceAnywhere +Subversion +Superversion +Surround SCM +svk +Team Foundation Server +Vesta +Visual SourceSafe
Atomic Commits	Yes.	Yes. Commits are atomic.
Files and Directories Moves or Renames	Yes. Renames are supported.	Yes. File and folder renames and moves are directly supported.
Intelligent Merging after Moves or Renames	No. the Mercurial book says: "When you use the 'hg rename' command, Mercurial makes a copy of each source file, then deletes it and marks the file as removed. "	Yes, intelligent renames are supported.
File and Directories Copies	Yes. Copies are supported	Yes. Copies are supported.
Remote Repository Replication	Yes.	Yes. Using the PureCM Proxy Server.
Propagating Changes to Parent Repositories	Yes.	No.
Repository Permissions	Yes. It is possible to lock down repositories, subdirectories, or files using hooks.	Yes. Permissions can be set against repositories, streams (branches/labels), folders and files using Access Control Lists.
Changesets' Support	Yes. Changesets are supported.
Tracking Line-wise File History	Yes. (hg annotate)	Yes, annotation is available through the GUI.
Ability to Work only on One Directory of the Repository	It is possible to commit changes only in a subset of the tree. There are plans for partial checkouts.	Yes.
Tracking Uncommited Changes	Yes. Using hg diff.	Yes.
Per-File Commit Messages	No.	No. Commit messages are per change.
Documentation	Very good. There is a companion book and a wiki. Every command has integrated help.	Very Good (html and command line help)
Ease of Deployment	Excellent. Binary packages are available for all popular platforms. Building from source requires only Python 2.3 (or later) and a C compiler.	Very good. PureCM is very easy to deploy.
Command Set	Tries to follow CVS conventions, but deviates where there is a different design.	A CVS-like command set which is easy to get used to for CVS-users.
Networking Support	Excellent. Uses HTTP or ssh. Remote access also works safely without locks over read-only network filesystems.	Good. (single TCP/IP socket)
Portability	Excellent. Runs on all platforms supported by Python. Repositories are portable across CPU architectures and endian conventions.	Excellent. Client and Server run on Windows, Linux, Solaris and other UNIXes. The client also runs on Mac OS X.
Web Interface	Yes. The web interface is a bundled component.	Yes.
Availability of Graphical User-Interfaces.	History viewing available with hgit extension; check-in extension (hgct) makes committing easier. Some third-party IDEs and GUI tools (e.g. eric3, meld) have integrated Mercurial support.	Cross-platform GUI for Windows, Linux, Mac OS X and other UNIXes.